# 0 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.cc"
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/x86_64-redhat-linux-gnu/lib//"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 0 "<command-line>" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.cc"
# 15 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.cc"
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 143 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 3 4

# 143 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 3 4
typedef long int ptrdiff_t;
# 209 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 3 4
typedef long unsigned int size_t;
# 415 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 3 4
typedef struct {
  long long __max_align_ll __attribute__((__aligned__(__alignof__(long long))));
  long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
# 426 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 3 4
} max_align_t;






  typedef decltype(nullptr) nullptr_t;
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdint.h" 1 3 4
# 9 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdint.h" 3 4
# 1 "/usr/include/stdint.h" 1 3 4
# 26 "/usr/include/stdint.h" 3 4
# 1 "/usr/include/bits/libc-header-start.h" 1 3 4
# 33 "/usr/include/bits/libc-header-start.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 465 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 453 "/usr/include/sys/cdefs.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 454 "/usr/include/sys/cdefs.h" 2 3 4
# 1 "/usr/include/bits/long-double.h" 1 3 4
# 455 "/usr/include/sys/cdefs.h" 2 3 4
# 466 "/usr/include/features.h" 2 3 4
# 489 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 10 "/usr/include/gnu/stubs.h" 3 4
# 1 "/usr/include/gnu/stubs-64.h" 1 3 4
# 11 "/usr/include/gnu/stubs.h" 2 3 4
# 490 "/usr/include/features.h" 2 3 4
# 34 "/usr/include/bits/libc-header-start.h" 2 3 4
# 27 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/bits/types.h" 1 3 4
# 27 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 28 "/usr/include/bits/types.h" 2 3 4
# 1 "/usr/include/bits/timesize.h" 1 3 4
# 29 "/usr/include/bits/types.h" 2 3 4


typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;


typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;

typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;






typedef __int8_t __int_least8_t;
typedef __uint8_t __uint_least8_t;
typedef __int16_t __int_least16_t;
typedef __uint16_t __uint_least16_t;
typedef __int32_t __int_least32_t;
typedef __uint32_t __uint_least32_t;
typedef __int64_t __int_least64_t;
typedef __uint64_t __uint_least64_t;



typedef long int __quad_t;
typedef unsigned long int __u_quad_t;







typedef long int __intmax_t;
typedef unsigned long int __uintmax_t;
# 141 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 142 "/usr/include/bits/types.h" 2 3 4
# 1 "/usr/include/bits/time64.h" 1 3 4
# 143 "/usr/include/bits/types.h" 2 3 4


typedef unsigned long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned long int __nlink_t;
typedef long int __off_t;
typedef long int __off64_t;
typedef int __pid_t;
typedef struct { int __val[2]; } __fsid_t;
typedef long int __clock_t;
typedef unsigned long int __rlim_t;
typedef unsigned long int __rlim64_t;
typedef unsigned int __id_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef long int __suseconds64_t;

typedef int __daddr_t;
typedef int __key_t;


typedef int __clockid_t;


typedef void * __timer_t;


typedef long int __blksize_t;




typedef long int __blkcnt_t;
typedef long int __blkcnt64_t;


typedef unsigned long int __fsblkcnt_t;
typedef unsigned long int __fsblkcnt64_t;


typedef unsigned long int __fsfilcnt_t;
typedef unsigned long int __fsfilcnt64_t;


typedef long int __fsword_t;

typedef long int __ssize_t;


typedef long int __syscall_slong_t;

typedef unsigned long int __syscall_ulong_t;



typedef __off64_t __loff_t;
typedef char *__caddr_t;


typedef long int __intptr_t;


typedef unsigned int __socklen_t;




typedef int __sig_atomic_t;
# 28 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/bits/wchar.h" 1 3 4
# 29 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 30 "/usr/include/stdint.h" 2 3 4




# 1 "/usr/include/bits/stdint-intn.h" 1 3 4
# 24 "/usr/include/bits/stdint-intn.h" 3 4
typedef __int8_t int8_t;
typedef __int16_t int16_t;
typedef __int32_t int32_t;
typedef __int64_t int64_t;
# 35 "/usr/include/stdint.h" 2 3 4


# 1 "/usr/include/bits/stdint-uintn.h" 1 3 4
# 24 "/usr/include/bits/stdint-uintn.h" 3 4
typedef __uint8_t uint8_t;
typedef __uint16_t uint16_t;
typedef __uint32_t uint32_t;
typedef __uint64_t uint64_t;
# 38 "/usr/include/stdint.h" 2 3 4





typedef __int_least8_t int_least8_t;
typedef __int_least16_t int_least16_t;
typedef __int_least32_t int_least32_t;
typedef __int_least64_t int_least64_t;


typedef __uint_least8_t uint_least8_t;
typedef __uint_least16_t uint_least16_t;
typedef __uint_least32_t uint_least32_t;
typedef __uint_least64_t uint_least64_t;





typedef signed char int_fast8_t;

typedef long int int_fast16_t;
typedef long int int_fast32_t;
typedef long int int_fast64_t;
# 71 "/usr/include/stdint.h" 3 4
typedef unsigned char uint_fast8_t;

typedef unsigned long int uint_fast16_t;
typedef unsigned long int uint_fast32_t;
typedef unsigned long int uint_fast64_t;
# 87 "/usr/include/stdint.h" 3 4
typedef long int intptr_t;


typedef unsigned long int uintptr_t;
# 101 "/usr/include/stdint.h" 3 4
typedef __intmax_t intmax_t;
typedef __uintmax_t uintmax_t;
# 10 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdint.h" 2 3 4
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2
# 1 "/usr/include/c++/11/stdlib.h" 1 3
# 36 "/usr/include/c++/11/stdlib.h" 3
# 1 "/usr/include/c++/11/cstdlib" 1 3
# 39 "/usr/include/c++/11/cstdlib" 3
       
# 40 "/usr/include/c++/11/cstdlib" 3

# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 1 3


# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 4 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 2 3
# 2425 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 3
namespace std
{
  typedef long unsigned int size_t;
  typedef long int ptrdiff_t;


  typedef decltype(nullptr) nullptr_t;

}
# 2447 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 3
namespace std
{
  inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
}
namespace __gnu_cxx
{
  inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
}
# 2637 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 3
namespace std
{


  extern "C++" __attribute__ ((__noreturn__))
  inline void
  __replacement_assert(const char* __file, int __line,
         const char* __function, const char* __condition)
  {
    __builtin_printf("%s:%d: %s: Assertion '%s' failed.\n", __file, __line,
       __function, __condition);
    __builtin_abort();
  }
}
# 2715 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 3
# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/os_defines.h" 1 3
# 2716 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 2 3


# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/cpu_defines.h" 1 3
# 2719 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h" 2 3
# 42 "/usr/include/c++/11/cstdlib" 2 3
# 75 "/usr/include/c++/11/cstdlib" 3
# 1 "/usr/include/stdlib.h" 1 3 4
# 25 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/bits/libc-header-start.h" 1 3 4
# 26 "/usr/include/stdlib.h" 2 3 4





# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 32 "/usr/include/stdlib.h" 2 3 4

extern "C" {





# 1 "/usr/include/bits/waitflags.h" 1 3 4
# 40 "/usr/include/stdlib.h" 2 3 4
# 1 "/usr/include/bits/waitstatus.h" 1 3 4
# 41 "/usr/include/stdlib.h" 2 3 4
# 55 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/bits/floatn.h" 1 3 4
# 74 "/usr/include/bits/floatn.h" 3 4
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# 86 "/usr/include/bits/floatn.h" 3 4
typedef __float128 _Float128;
# 119 "/usr/include/bits/floatn.h" 3 4
# 1 "/usr/include/bits/floatn-common.h" 1 3 4
# 24 "/usr/include/bits/floatn-common.h" 3 4
# 1 "/usr/include/bits/long-double.h" 1 3 4
# 25 "/usr/include/bits/floatn-common.h" 2 3 4
# 214 "/usr/include/bits/floatn-common.h" 3 4
typedef float _Float32;
# 251 "/usr/include/bits/floatn-common.h" 3 4
typedef double _Float64;
# 268 "/usr/include/bits/floatn-common.h" 3 4
typedef double _Float32x;
# 285 "/usr/include/bits/floatn-common.h" 3 4
typedef long double _Float64x;
# 120 "/usr/include/bits/floatn.h" 2 3 4
# 56 "/usr/include/stdlib.h" 2 3 4


typedef struct
  {
    int quot;
    int rem;
  } div_t;



typedef struct
  {
    long int quot;
    long int rem;
  } ldiv_t;





__extension__ typedef struct
  {
    long long int quot;
    long long int rem;
  } lldiv_t;
# 97 "/usr/include/stdlib.h" 3 4
extern size_t __ctype_get_mb_cur_max (void) noexcept (true) __attribute__ ((__warn_unused_result__));



extern double atof (const char *__nptr)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));

extern int atoi (const char *__nptr)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));

extern long int atol (const char *__nptr)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));



__extension__ extern long long int atoll (const char *__nptr)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));



extern double strtod (const char *__restrict __nptr,
        char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern float strtof (const char *__restrict __nptr,
       char **__restrict __endptr) noexcept (true) __attribute__ ((__nonnull__ (1)));

extern long double strtold (const char *__restrict __nptr,
       char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 140 "/usr/include/stdlib.h" 3 4
extern _Float32 strtof32 (const char *__restrict __nptr,
     char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern _Float64 strtof64 (const char *__restrict __nptr,
     char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern _Float128 strtof128 (const char *__restrict __nptr,
       char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern _Float32x strtof32x (const char *__restrict __nptr,
       char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern _Float64x strtof64x (const char *__restrict __nptr,
       char **__restrict __endptr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 176 "/usr/include/stdlib.h" 3 4
extern long int strtol (const char *__restrict __nptr,
   char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));

extern unsigned long int strtoul (const char *__restrict __nptr,
      char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



__extension__
extern long long int strtoq (const char *__restrict __nptr,
        char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));

__extension__
extern unsigned long long int strtouq (const char *__restrict __nptr,
           char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));




__extension__
extern long long int strtoll (const char *__restrict __nptr,
         char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));

__extension__
extern unsigned long long int strtoull (const char *__restrict __nptr,
     char **__restrict __endptr, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));




extern int strfromd (char *__dest, size_t __size, const char *__format,
       double __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));

extern int strfromf (char *__dest, size_t __size, const char *__format,
       float __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));

extern int strfroml (char *__dest, size_t __size, const char *__format,
       long double __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));
# 232 "/usr/include/stdlib.h" 3 4
extern int strfromf32 (char *__dest, size_t __size, const char * __format,
         _Float32 __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));



extern int strfromf64 (char *__dest, size_t __size, const char * __format,
         _Float64 __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));



extern int strfromf128 (char *__dest, size_t __size, const char * __format,
   _Float128 __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));



extern int strfromf32x (char *__dest, size_t __size, const char * __format,
   _Float32x __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));



extern int strfromf64x (char *__dest, size_t __size, const char * __format,
   _Float64x __f)
     noexcept (true) __attribute__ ((__nonnull__ (3)));
# 272 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/bits/types/locale_t.h" 1 3 4
# 22 "/usr/include/bits/types/locale_t.h" 3 4
# 1 "/usr/include/bits/types/__locale_t.h" 1 3 4
# 28 "/usr/include/bits/types/__locale_t.h" 3 4
struct __locale_struct
{

  struct __locale_data *__locales[13];


  const unsigned short int *__ctype_b;
  const int *__ctype_tolower;
  const int *__ctype_toupper;


  const char *__names[13];
};

typedef struct __locale_struct *__locale_t;
# 23 "/usr/include/bits/types/locale_t.h" 2 3 4

typedef __locale_t locale_t;
# 273 "/usr/include/stdlib.h" 2 3 4

extern long int strtol_l (const char *__restrict __nptr,
     char **__restrict __endptr, int __base,
     locale_t __loc) noexcept (true) __attribute__ ((__nonnull__ (1, 4)));

extern unsigned long int strtoul_l (const char *__restrict __nptr,
        char **__restrict __endptr,
        int __base, locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 4)));

__extension__
extern long long int strtoll_l (const char *__restrict __nptr,
    char **__restrict __endptr, int __base,
    locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 4)));

__extension__
extern unsigned long long int strtoull_l (const char *__restrict __nptr,
       char **__restrict __endptr,
       int __base, locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 4)));

extern double strtod_l (const char *__restrict __nptr,
   char **__restrict __endptr, locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));

extern float strtof_l (const char *__restrict __nptr,
         char **__restrict __endptr, locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));

extern long double strtold_l (const char *__restrict __nptr,
         char **__restrict __endptr,
         locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));
# 316 "/usr/include/stdlib.h" 3 4
extern _Float32 strtof32_l (const char *__restrict __nptr,
       char **__restrict __endptr,
       locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern _Float64 strtof64_l (const char *__restrict __nptr,
       char **__restrict __endptr,
       locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern _Float128 strtof128_l (const char *__restrict __nptr,
         char **__restrict __endptr,
         locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern _Float32x strtof32x_l (const char *__restrict __nptr,
         char **__restrict __endptr,
         locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern _Float64x strtof64x_l (const char *__restrict __nptr,
         char **__restrict __endptr,
         locale_t __loc)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));
# 360 "/usr/include/stdlib.h" 3 4
extern __inline __attribute__ ((__gnu_inline__)) int
__attribute__ ((__leaf__)) atoi (const char *__nptr) noexcept (true)
{
  return (int) strtol (__nptr, (char **) __null, 10);
}
extern __inline __attribute__ ((__gnu_inline__)) long int
__attribute__ ((__leaf__)) atol (const char *__nptr) noexcept (true)
{
  return strtol (__nptr, (char **) __null, 10);
}


__extension__ extern __inline __attribute__ ((__gnu_inline__)) long long int
__attribute__ ((__leaf__)) atoll (const char *__nptr) noexcept (true)
{
  return strtoll (__nptr, (char **) __null, 10);
}
# 385 "/usr/include/stdlib.h" 3 4
extern char *l64a (long int __n) noexcept (true) __attribute__ ((__warn_unused_result__));


extern long int a64l (const char *__s)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));




# 1 "/usr/include/sys/types.h" 1 3 4
# 27 "/usr/include/sys/types.h" 3 4
extern "C" {





typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;


typedef __loff_t loff_t;




typedef __ino_t ino_t;






typedef __ino64_t ino64_t;




typedef __dev_t dev_t;




typedef __gid_t gid_t;




typedef __mode_t mode_t;




typedef __nlink_t nlink_t;




typedef __uid_t uid_t;





typedef __off_t off_t;






typedef __off64_t off64_t;




typedef __pid_t pid_t;





typedef __id_t id_t;




typedef __ssize_t ssize_t;





typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;





typedef __key_t key_t;




# 1 "/usr/include/bits/types/clock_t.h" 1 3 4






typedef __clock_t clock_t;
# 127 "/usr/include/sys/types.h" 2 3 4

# 1 "/usr/include/bits/types/clockid_t.h" 1 3 4






typedef __clockid_t clockid_t;
# 129 "/usr/include/sys/types.h" 2 3 4
# 1 "/usr/include/bits/types/time_t.h" 1 3 4






typedef __time_t time_t;
# 130 "/usr/include/sys/types.h" 2 3 4
# 1 "/usr/include/bits/types/timer_t.h" 1 3 4






typedef __timer_t timer_t;
# 131 "/usr/include/sys/types.h" 2 3 4



typedef __useconds_t useconds_t;



typedef __suseconds_t suseconds_t;





# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 145 "/usr/include/sys/types.h" 2 3 4



typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;







typedef __uint8_t u_int8_t;
typedef __uint16_t u_int16_t;
typedef __uint32_t u_int32_t;
typedef __uint64_t u_int64_t;


typedef int register_t __attribute__ ((__mode__ (__word__)));
# 176 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 24 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/endian.h" 1 3 4
# 35 "/usr/include/bits/endian.h" 3 4
# 1 "/usr/include/bits/endianness.h" 1 3 4
# 36 "/usr/include/bits/endian.h" 2 3 4
# 25 "/usr/include/endian.h" 2 3 4
# 35 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/byteswap.h" 1 3 4
# 33 "/usr/include/bits/byteswap.h" 3 4
static __inline __uint16_t
__bswap_16 (__uint16_t __bsx)
{

  return __builtin_bswap16 (__bsx);



}






static __inline __uint32_t
__bswap_32 (__uint32_t __bsx)
{

  return __builtin_bswap32 (__bsx);



}
# 69 "/usr/include/bits/byteswap.h" 3 4
__extension__ static __inline __uint64_t
__bswap_64 (__uint64_t __bsx)
{

  return __builtin_bswap64 (__bsx);



}
# 36 "/usr/include/endian.h" 2 3 4
# 1 "/usr/include/bits/uintn-identity.h" 1 3 4
# 32 "/usr/include/bits/uintn-identity.h" 3 4
static __inline __uint16_t
__uint16_identity (__uint16_t __x)
{
  return __x;
}

static __inline __uint32_t
__uint32_identity (__uint32_t __x)
{
  return __x;
}

static __inline __uint64_t
__uint64_identity (__uint64_t __x)
{
  return __x;
}
# 37 "/usr/include/endian.h" 2 3 4
# 177 "/usr/include/sys/types.h" 2 3 4


# 1 "/usr/include/sys/select.h" 1 3 4
# 30 "/usr/include/sys/select.h" 3 4
# 1 "/usr/include/bits/select.h" 1 3 4
# 31 "/usr/include/sys/select.h" 2 3 4


# 1 "/usr/include/bits/types/sigset_t.h" 1 3 4



# 1 "/usr/include/bits/types/__sigset_t.h" 1 3 4




typedef struct
{
  unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
} __sigset_t;
# 5 "/usr/include/bits/types/sigset_t.h" 2 3 4


typedef __sigset_t sigset_t;
# 34 "/usr/include/sys/select.h" 2 3 4



# 1 "/usr/include/bits/types/struct_timeval.h" 1 3 4







struct timeval
{
  __time_t tv_sec;
  __suseconds_t tv_usec;
};
# 38 "/usr/include/sys/select.h" 2 3 4

# 1 "/usr/include/bits/types/struct_timespec.h" 1 3 4
# 10 "/usr/include/bits/types/struct_timespec.h" 3 4
struct timespec
{
  __time_t tv_sec;



  __syscall_slong_t tv_nsec;
# 26 "/usr/include/bits/types/struct_timespec.h" 3 4
};
# 40 "/usr/include/sys/select.h" 2 3 4
# 49 "/usr/include/sys/select.h" 3 4
typedef long int __fd_mask;
# 59 "/usr/include/sys/select.h" 3 4
typedef struct
  {



    __fd_mask fds_bits[1024 / (8 * (int) sizeof (__fd_mask))];





  } fd_set;






typedef __fd_mask fd_mask;
# 91 "/usr/include/sys/select.h" 3 4
extern "C" {
# 101 "/usr/include/sys/select.h" 3 4
extern int select (int __nfds, fd_set *__restrict __readfds,
     fd_set *__restrict __writefds,
     fd_set *__restrict __exceptfds,
     struct timeval *__restrict __timeout);
# 113 "/usr/include/sys/select.h" 3 4
extern int pselect (int __nfds, fd_set *__restrict __readfds,
      fd_set *__restrict __writefds,
      fd_set *__restrict __exceptfds,
      const struct timespec *__restrict __timeout,
      const __sigset_t *__restrict __sigmask);





# 1 "/usr/include/bits/select2.h" 1 3 4
# 24 "/usr/include/bits/select2.h" 3 4
extern long int __fdelt_chk (long int __d);
extern long int __fdelt_warn (long int __d)
  __attribute__((__warning__ ("bit outside of fd_set selected")));
# 124 "/usr/include/sys/select.h" 2 3 4


}
# 180 "/usr/include/sys/types.h" 2 3 4





typedef __blksize_t blksize_t;






typedef __blkcnt_t blkcnt_t;



typedef __fsblkcnt_t fsblkcnt_t;



typedef __fsfilcnt_t fsfilcnt_t;
# 219 "/usr/include/sys/types.h" 3 4
typedef __blkcnt64_t blkcnt64_t;
typedef __fsblkcnt64_t fsblkcnt64_t;
typedef __fsfilcnt64_t fsfilcnt64_t;





# 1 "/usr/include/bits/pthreadtypes.h" 1 3 4
# 23 "/usr/include/bits/pthreadtypes.h" 3 4
# 1 "/usr/include/bits/thread-shared-types.h" 1 3 4
# 44 "/usr/include/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/bits/pthreadtypes-arch.h" 1 3 4
# 21 "/usr/include/bits/pthreadtypes-arch.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 22 "/usr/include/bits/pthreadtypes-arch.h" 2 3 4
# 45 "/usr/include/bits/thread-shared-types.h" 2 3 4




typedef struct __pthread_internal_list
{
  struct __pthread_internal_list *__prev;
  struct __pthread_internal_list *__next;
} __pthread_list_t;

typedef struct __pthread_internal_slist
{
  struct __pthread_internal_slist *__next;
} __pthread_slist_t;
# 74 "/usr/include/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/bits/struct_mutex.h" 1 3 4
# 22 "/usr/include/bits/struct_mutex.h" 3 4
struct __pthread_mutex_s
{
  int __lock;
  unsigned int __count;
  int __owner;

  unsigned int __nusers;



  int __kind;

  short __spins;
  short __elision;
  __pthread_list_t __list;
# 53 "/usr/include/bits/struct_mutex.h" 3 4
};
# 75 "/usr/include/bits/thread-shared-types.h" 2 3 4
# 87 "/usr/include/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/bits/struct_rwlock.h" 1 3 4
# 23 "/usr/include/bits/struct_rwlock.h" 3 4
struct __pthread_rwlock_arch_t
{
  unsigned int __readers;
  unsigned int __writers;
  unsigned int __wrphase_futex;
  unsigned int __writers_futex;
  unsigned int __pad3;
  unsigned int __pad4;

  int __cur_writer;
  int __shared;
  signed char __rwelision;




  unsigned char __pad1[7];


  unsigned long int __pad2;


  unsigned int __flags;
# 55 "/usr/include/bits/struct_rwlock.h" 3 4
};
# 88 "/usr/include/bits/thread-shared-types.h" 2 3 4




struct __pthread_cond_s
{
  __extension__ union
  {
    __extension__ unsigned long long int __wseq;
    struct
    {
      unsigned int __low;
      unsigned int __high;
    } __wseq32;
  };
  __extension__ union
  {
    __extension__ unsigned long long int __g1_start;
    struct
    {
      unsigned int __low;
      unsigned int __high;
    } __g1_start32;
  };
  unsigned int __g_refs[2] ;
  unsigned int __g_size[2];
  unsigned int __g1_orig_size;
  unsigned int __wrefs;
  unsigned int __g_signals[2];
};

typedef unsigned int __tss_t;
typedef unsigned long int __thrd_t;

typedef struct
{
  int __data ;
} __once_flag;
# 24 "/usr/include/bits/pthreadtypes.h" 2 3 4



typedef unsigned long int pthread_t;




typedef union
{
  char __size[4];
  int __align;
} pthread_mutexattr_t;




typedef union
{
  char __size[4];
  int __align;
} pthread_condattr_t;



typedef unsigned int pthread_key_t;



typedef int pthread_once_t;


union pthread_attr_t
{
  char __size[56];
  long int __align;
};

typedef union pthread_attr_t pthread_attr_t;




typedef union
{
  struct __pthread_mutex_s __data;
  char __size[40];
  long int __align;
} pthread_mutex_t;


typedef union
{
  struct __pthread_cond_s __data;
  char __size[48];
  __extension__ long long int __align;
} pthread_cond_t;





typedef union
{
  struct __pthread_rwlock_arch_t __data;
  char __size[56];
  long int __align;
} pthread_rwlock_t;

typedef union
{
  char __size[8];
  long int __align;
} pthread_rwlockattr_t;





typedef volatile int pthread_spinlock_t;




typedef union
{
  char __size[32];
  long int __align;
} pthread_barrier_t;

typedef union
{
  char __size[4];
  int __align;
} pthread_barrierattr_t;
# 228 "/usr/include/sys/types.h" 2 3 4


}
# 395 "/usr/include/stdlib.h" 2 3 4






extern long int random (void) noexcept (true);


extern void srandom (unsigned int __seed) noexcept (true);





extern char *initstate (unsigned int __seed, char *__statebuf,
   size_t __statelen) noexcept (true) __attribute__ ((__nonnull__ (2)));



extern char *setstate (char *__statebuf) noexcept (true) __attribute__ ((__nonnull__ (1)));







struct random_data
  {
    int32_t *fptr;
    int32_t *rptr;
    int32_t *state;
    int rand_type;
    int rand_deg;
    int rand_sep;
    int32_t *end_ptr;
  };

extern int random_r (struct random_data *__restrict __buf,
       int32_t *__restrict __result) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern int srandom_r (unsigned int __seed, struct random_data *__buf)
     noexcept (true) __attribute__ ((__nonnull__ (2)));

extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
   size_t __statelen,
   struct random_data *__restrict __buf)
     noexcept (true) __attribute__ ((__nonnull__ (2, 4)));

extern int setstate_r (char *__restrict __statebuf,
         struct random_data *__restrict __buf)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));





extern int rand (void) noexcept (true);

extern void srand (unsigned int __seed) noexcept (true);



extern int rand_r (unsigned int *__seed) noexcept (true);







extern double drand48 (void) noexcept (true);
extern double erand48 (unsigned short int __xsubi[3]) noexcept (true) __attribute__ ((__nonnull__ (1)));


extern long int lrand48 (void) noexcept (true);
extern long int nrand48 (unsigned short int __xsubi[3])
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern long int mrand48 (void) noexcept (true);
extern long int jrand48 (unsigned short int __xsubi[3])
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern void srand48 (long int __seedval) noexcept (true);
extern unsigned short int *seed48 (unsigned short int __seed16v[3])
     noexcept (true) __attribute__ ((__nonnull__ (1)));
extern void lcong48 (unsigned short int __param[7]) noexcept (true) __attribute__ ((__nonnull__ (1)));





struct drand48_data
  {
    unsigned short int __x[3];
    unsigned short int __old_x[3];
    unsigned short int __c;
    unsigned short int __init;
    __extension__ unsigned long long int __a;

  };


extern int drand48_r (struct drand48_data *__restrict __buffer,
        double *__restrict __result) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern int erand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        double *__restrict __result) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int lrand48_r (struct drand48_data *__restrict __buffer,
        long int *__restrict __result)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern int nrand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        long int *__restrict __result)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int mrand48_r (struct drand48_data *__restrict __buffer,
        long int *__restrict __result)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern int jrand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        long int *__restrict __result)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
     noexcept (true) __attribute__ ((__nonnull__ (2)));

extern int seed48_r (unsigned short int __seed16v[3],
       struct drand48_data *__buffer) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern int lcong48_r (unsigned short int __param[7],
        struct drand48_data *__buffer)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern void *malloc (size_t __size) noexcept (true) __attribute__ ((__malloc__))
     __attribute__ ((__alloc_size__ (1))) __attribute__ ((__warn_unused_result__));

extern void *calloc (size_t __nmemb, size_t __size)
     noexcept (true) __attribute__ ((__malloc__)) __attribute__ ((__alloc_size__ (1, 2))) __attribute__ ((__warn_unused_result__));






extern void *realloc (void *__ptr, size_t __size)
     noexcept (true) __attribute__ ((__warn_unused_result__)) __attribute__ ((__alloc_size__ (2)));







extern void *reallocarray (void *__ptr, size_t __nmemb, size_t __size)
     noexcept (true) __attribute__ ((__warn_unused_result__))
     __attribute__ ((__alloc_size__ (2, 3)));



extern void free (void *__ptr) noexcept (true);


# 1 "/usr/include/alloca.h" 1 3 4
# 24 "/usr/include/alloca.h" 3 4
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 25 "/usr/include/alloca.h" 2 3 4

extern "C" {





extern void *alloca (size_t __size) noexcept (true);





}
# 569 "/usr/include/stdlib.h" 2 3 4





extern void *valloc (size_t __size) noexcept (true) __attribute__ ((__malloc__))
     __attribute__ ((__alloc_size__ (1))) __attribute__ ((__warn_unused_result__));




extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
     noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));




extern void *aligned_alloc (size_t __alignment, size_t __size)
     noexcept (true) __attribute__ ((__malloc__)) __attribute__ ((__alloc_size__ (2))) __attribute__ ((__warn_unused_result__));



extern void abort (void) noexcept (true) __attribute__ ((__noreturn__));



extern int atexit (void (*__func) (void)) noexcept (true) __attribute__ ((__nonnull__ (1)));




extern "C++" int at_quick_exit (void (*__func) (void))
     noexcept (true) __asm ("at_quick_exit") __attribute__ ((__nonnull__ (1)));
# 610 "/usr/include/stdlib.h" 3 4
extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
     noexcept (true) __attribute__ ((__nonnull__ (1)));





extern void exit (int __status) noexcept (true) __attribute__ ((__noreturn__));





extern void quick_exit (int __status) noexcept (true) __attribute__ ((__noreturn__));





extern void _Exit (int __status) noexcept (true) __attribute__ ((__noreturn__));




extern char *getenv (const char *__name) noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));




extern char *secure_getenv (const char *__name)
     noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));






extern int putenv (char *__string) noexcept (true) __attribute__ ((__nonnull__ (1)));





extern int setenv (const char *__name, const char *__value, int __replace)
     noexcept (true) __attribute__ ((__nonnull__ (2)));


extern int unsetenv (const char *__name) noexcept (true) __attribute__ ((__nonnull__ (1)));






extern int clearenv (void) noexcept (true);
# 675 "/usr/include/stdlib.h" 3 4
extern char *mktemp (char *__template) noexcept (true) __attribute__ ((__nonnull__ (1)));
# 688 "/usr/include/stdlib.h" 3 4
extern int mkstemp (char *__template) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 698 "/usr/include/stdlib.h" 3 4
extern int mkstemp64 (char *__template) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 710 "/usr/include/stdlib.h" 3 4
extern int mkstemps (char *__template, int __suffixlen) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 720 "/usr/include/stdlib.h" 3 4
extern int mkstemps64 (char *__template, int __suffixlen)
     __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 731 "/usr/include/stdlib.h" 3 4
extern char *mkdtemp (char *__template) noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 742 "/usr/include/stdlib.h" 3 4
extern int mkostemp (char *__template, int __flags) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 752 "/usr/include/stdlib.h" 3 4
extern int mkostemp64 (char *__template, int __flags) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 762 "/usr/include/stdlib.h" 3 4
extern int mkostemps (char *__template, int __suffixlen, int __flags)
     __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 774 "/usr/include/stdlib.h" 3 4
extern int mkostemps64 (char *__template, int __suffixlen, int __flags)
     __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 784 "/usr/include/stdlib.h" 3 4
extern int system (const char *__command) __attribute__ ((__warn_unused_result__));





extern char *canonicalize_file_name (const char *__name)
     noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 800 "/usr/include/stdlib.h" 3 4
extern char *realpath (const char *__restrict __name,
         char *__restrict __resolved) noexcept (true) __attribute__ ((__warn_unused_result__));






typedef int (*__compar_fn_t) (const void *, const void *);


typedef __compar_fn_t comparison_fn_t;



typedef int (*__compar_d_fn_t) (const void *, const void *, void *);




extern void *bsearch (const void *__key, const void *__base,
        size_t __nmemb, size_t __size, __compar_fn_t __compar)
     __attribute__ ((__nonnull__ (1, 2, 5))) __attribute__ ((__warn_unused_result__));


# 1 "/usr/include/bits/stdlib-bsearch.h" 1 3 4
# 19 "/usr/include/bits/stdlib-bsearch.h" 3 4
extern __inline __attribute__ ((__gnu_inline__)) void *
bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size,
  __compar_fn_t __compar)
{
  size_t __l, __u, __idx;
  const void *__p;
  int __comparison;

  __l = 0;
  __u = __nmemb;
  while (__l < __u)
    {
      __idx = (__l + __u) / 2;
      __p = (void *) (((const char *) __base) + (__idx * __size));
      __comparison = (*__compar) (__key, __p);
      if (__comparison < 0)
 __u = __idx;
      else if (__comparison > 0)
 __l = __idx + 1;
      else
 return (void *) __p;
    }

  return __null;
}
# 826 "/usr/include/stdlib.h" 2 3 4




extern void qsort (void *__base, size_t __nmemb, size_t __size,
     __compar_fn_t __compar) __attribute__ ((__nonnull__ (1, 4)));

extern void qsort_r (void *__base, size_t __nmemb, size_t __size,
       __compar_d_fn_t __compar, void *__arg)
  __attribute__ ((__nonnull__ (1, 4)));




extern int abs (int __x) noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));
extern long int labs (long int __x) noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));


__extension__ extern long long int llabs (long long int __x)
     noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));






extern div_t div (int __numer, int __denom)
     noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));
extern ldiv_t ldiv (long int __numer, long int __denom)
     noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));


__extension__ extern lldiv_t lldiv (long long int __numer,
        long long int __denom)
     noexcept (true) __attribute__ ((__const__)) __attribute__ ((__warn_unused_result__));
# 872 "/usr/include/stdlib.h" 3 4
extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign) noexcept (true) __attribute__ ((__nonnull__ (3, 4))) __attribute__ ((__warn_unused_result__));




extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign) noexcept (true) __attribute__ ((__nonnull__ (3, 4))) __attribute__ ((__warn_unused_result__));




extern char *gcvt (double __value, int __ndigit, char *__buf)
     noexcept (true) __attribute__ ((__nonnull__ (3))) __attribute__ ((__warn_unused_result__));




extern char *qecvt (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign)
     noexcept (true) __attribute__ ((__nonnull__ (3, 4))) __attribute__ ((__warn_unused_result__));
extern char *qfcvt (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign)
     noexcept (true) __attribute__ ((__nonnull__ (3, 4))) __attribute__ ((__warn_unused_result__));
extern char *qgcvt (long double __value, int __ndigit, char *__buf)
     noexcept (true) __attribute__ ((__nonnull__ (3))) __attribute__ ((__warn_unused_result__));




extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign, char *__restrict __buf,
     size_t __len) noexcept (true) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign, char *__restrict __buf,
     size_t __len) noexcept (true) __attribute__ ((__nonnull__ (3, 4, 5)));

extern int qecvt_r (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign,
      char *__restrict __buf, size_t __len)
     noexcept (true) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int qfcvt_r (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign,
      char *__restrict __buf, size_t __len)
     noexcept (true) __attribute__ ((__nonnull__ (3, 4, 5)));





extern int mblen (const char *__s, size_t __n) noexcept (true);


extern int mbtowc (wchar_t *__restrict __pwc,
     const char *__restrict __s, size_t __n) noexcept (true);


extern int wctomb (char *__s, wchar_t __wchar) noexcept (true);



extern size_t mbstowcs (wchar_t *__restrict __pwcs,
   const char *__restrict __s, size_t __n) noexcept (true)
    __attribute__ ((__access__ (__read_only__, 2)));

extern size_t wcstombs (char *__restrict __s,
   const wchar_t *__restrict __pwcs, size_t __n)
     noexcept (true)
  __attribute__ ((__access__ (__write_only__, 1, 3))) __attribute__ ((__access__ (__read_only__, 2)));






extern int rpmatch (const char *__response) noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__warn_unused_result__));
# 958 "/usr/include/stdlib.h" 3 4
extern int getsubopt (char **__restrict __optionp,
        char *const *__restrict __tokens,
        char **__restrict __valuep)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2, 3))) __attribute__ ((__warn_unused_result__));







extern int posix_openpt (int __oflag) __attribute__ ((__warn_unused_result__));







extern int grantpt (int __fd) noexcept (true);



extern int unlockpt (int __fd) noexcept (true);




extern char *ptsname (int __fd) noexcept (true) __attribute__ ((__warn_unused_result__));






extern int ptsname_r (int __fd, char *__buf, size_t __buflen)
     noexcept (true) __attribute__ ((__nonnull__ (2))) __attribute__ ((__access__ (__write_only__, 2, 3)));


extern int getpt (void);






extern int getloadavg (double __loadavg[], int __nelem)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 1014 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/bits/stdlib-float.h" 1 3 4
# 24 "/usr/include/bits/stdlib-float.h" 3 4
extern __inline __attribute__ ((__gnu_inline__)) double
__attribute__ ((__leaf__)) atof (const char *__nptr) noexcept (true)
{
  return strtod (__nptr, (char **) __null);
}
# 1015 "/usr/include/stdlib.h" 2 3 4



# 1 "/usr/include/bits/stdlib.h" 1 3 4
# 23 "/usr/include/bits/stdlib.h" 3 4
extern char *__realpath_chk (const char *__restrict __name,
        char *__restrict __resolved,
        size_t __resolvedlen) noexcept (true) __attribute__ ((__warn_unused_result__));
extern char *__realpath_alias (const char *__restrict __name, char *__restrict __resolved) noexcept (true) __asm__ ("" "realpath")

                                                 __attribute__ ((__warn_unused_result__));
extern char *__realpath_chk_warn (const char *__restrict __name, char *__restrict __resolved, size_t __resolvedlen) noexcept (true) __asm__ ("" "__realpath_chk")


                                                __attribute__ ((__warn_unused_result__))
     __attribute__((__warning__ ("second argument of realpath must be either NULL or at " "least PATH_MAX bytes long buffer")))
                                      ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) char *
__attribute__ ((__leaf__)) realpath (const char *__restrict __name, char *__restrict __resolved) noexcept (true)
{
  if (__builtin_object_size (__resolved, 2 > 1) != (size_t) -1)
    {




      return __realpath_chk (__name, __resolved, __builtin_object_size (__resolved, 2 > 1));
    }

  return __realpath_alias (__name, __resolved);
}


extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen,
       size_t __nreal) noexcept (true) __attribute__ ((__nonnull__ (2)))
    __attribute__ ((__access__ (__write_only__, 2, 3)));
extern int __ptsname_r_alias (int __fd, char *__buf, size_t __buflen) noexcept (true) __asm__ ("" "ptsname_r")

     __attribute__ ((__nonnull__ (2))) __attribute__ ((__access__ (__write_only__, 2, 3)));
extern int __ptsname_r_chk_warn (int __fd, char *__buf, size_t __buflen, size_t __nreal) noexcept (true) __asm__ ("" "__ptsname_r_chk")


     __attribute__ ((__nonnull__ (2))) __attribute__((__warning__ ("ptsname_r called with buflen bigger than " "size of buf")))
                   ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) ptsname_r (int __fd, char *__buf, size_t __buflen) noexcept (true)
{
  if (__builtin_object_size (__buf, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__buflen))
 return __ptsname_r_chk (__fd, __buf, __buflen, __builtin_object_size (__buf, 2 > 1));
      if (__buflen > __builtin_object_size (__buf, 2 > 1))
 return __ptsname_r_chk_warn (__fd, __buf, __buflen, __builtin_object_size (__buf, 2 > 1));
    }
  return __ptsname_r_alias (__fd, __buf, __buflen);
}


extern int __wctomb_chk (char *__s, wchar_t __wchar, size_t __buflen)
  noexcept (true) __attribute__ ((__warn_unused_result__));
extern int __wctomb_alias (char *__s, wchar_t __wchar) noexcept (true) __asm__ ("" "wctomb")
              __attribute__ ((__warn_unused_result__));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) int
__attribute__ ((__leaf__)) wctomb (char *__s, wchar_t __wchar) noexcept (true)
{







  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1 && 16 > __builtin_object_size (__s, 2 > 1))
    return __wctomb_chk (__s, __wchar, __builtin_object_size (__s, 2 > 1));
  return __wctomb_alias (__s, __wchar);
}


extern size_t __mbstowcs_chk (wchar_t *__restrict __dst,
         const char *__restrict __src,
         size_t __len, size_t __dstlen) noexcept (true)
    __attribute__ ((__access__ (__write_only__, 1, 3))) __attribute__ ((__access__ (__read_only__, 2)));
extern size_t __mbstowcs_alias (wchar_t *__restrict __dst, const char *__restrict __src, size_t __len) noexcept (true) __asm__ ("" "mbstowcs")



    __attribute__ ((__access__ (__write_only__, 1, 3))) __attribute__ ((__access__ (__read_only__, 2)));
extern size_t __mbstowcs_chk_warn (wchar_t *__restrict __dst, const char *__restrict __src, size_t __len, size_t __dstlen) noexcept (true) __asm__ ("" "__mbstowcs_chk")



     __attribute__((__warning__ ("mbstowcs called with dst buffer smaller than len " "* sizeof (wchar_t)")))
                        ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src, size_t __len) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __mbstowcs_chk (__dst, __src, __len,
          __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));

      if (__len > __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t))
 return __mbstowcs_chk_warn (__dst, __src, __len,
         __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));
    }
  return __mbstowcs_alias (__dst, __src, __len);
}


extern size_t __wcstombs_chk (char *__restrict __dst,
         const wchar_t *__restrict __src,
         size_t __len, size_t __dstlen) noexcept (true)
  __attribute__ ((__access__ (__write_only__, 1, 3))) __attribute__ ((__access__ (__read_only__, 2)));
extern size_t __wcstombs_alias (char *__restrict __dst, const wchar_t *__restrict __src, size_t __len) noexcept (true) __asm__ ("" "wcstombs")



  __attribute__ ((__access__ (__write_only__, 1, 3))) __attribute__ ((__access__ (__read_only__, 2)));
extern size_t __wcstombs_chk_warn (char *__restrict __dst, const wchar_t *__restrict __src, size_t __len, size_t __dstlen) noexcept (true) __asm__ ("" "__wcstombs_chk")



     __attribute__((__warning__ ("wcstombs called with dst buffer smaller than len")));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) wcstombs (char *__restrict __dst, const wchar_t *__restrict __src, size_t __len) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __wcstombs_chk (__dst, __src, __len, __builtin_object_size (__dst, 2 > 1));
      if (__len > __builtin_object_size (__dst, 2 > 1))
 return __wcstombs_chk_warn (__dst, __src, __len, __builtin_object_size (__dst, 2 > 1));
    }
  return __wcstombs_alias (__dst, __src, __len);
}
# 1019 "/usr/include/stdlib.h" 2 3 4







}
# 76 "/usr/include/c++/11/cstdlib" 2 3

# 1 "/usr/include/c++/11/bits/std_abs.h" 1 3
# 33 "/usr/include/c++/11/bits/std_abs.h" 3
       
# 34 "/usr/include/c++/11/bits/std_abs.h" 3
# 46 "/usr/include/c++/11/bits/std_abs.h" 3
extern "C++"
{
namespace std __attribute__ ((__visibility__ ("default")))
{


  using ::abs;


  inline long
  abs(long __i) { return __builtin_labs(__i); }



  inline long long
  abs(long long __x) { return __builtin_llabs (__x); }
# 70 "/usr/include/c++/11/bits/std_abs.h" 3
  inline constexpr double
  abs(double __x)
  { return __builtin_fabs(__x); }

  inline constexpr float
  abs(float __x)
  { return __builtin_fabsf(__x); }

  inline constexpr long double
  abs(long double __x)
  { return __builtin_fabsl(__x); }
# 107 "/usr/include/c++/11/bits/std_abs.h" 3

}
}
# 78 "/usr/include/c++/11/cstdlib" 2 3
# 121 "/usr/include/c++/11/cstdlib" 3
extern "C++"
{
namespace std __attribute__ ((__visibility__ ("default")))
{


  using ::div_t;
  using ::ldiv_t;

  using ::abort;



  using ::atexit;


  using ::at_quick_exit;


  using ::atof;
  using ::atoi;
  using ::atol;
  using ::bsearch;
  using ::calloc;
  using ::div;
  using ::exit;
  using ::free;
  using ::getenv;
  using ::labs;
  using ::ldiv;
  using ::malloc;

  using ::mblen;
  using ::mbstowcs;
  using ::mbtowc;

  using ::qsort;


  using ::quick_exit;


  using ::rand;
  using ::realloc;
  using ::srand;
  using ::strtod;
  using ::strtol;
  using ::strtoul;
  using ::system;

  using ::wcstombs;
  using ::wctomb;



  inline ldiv_t
  div(long __i, long __j) { return ldiv(__i, __j); }




}
# 195 "/usr/include/c++/11/cstdlib" 3
namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{



  using ::lldiv_t;





  using ::_Exit;



  using ::llabs;

  inline lldiv_t
  div(long long __n, long long __d)
  { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }

  using ::lldiv;
# 227 "/usr/include/c++/11/cstdlib" 3
  using ::atoll;
  using ::strtoll;
  using ::strtoull;

  using ::strtof;
  using ::strtold;


}

namespace std
{

  using ::__gnu_cxx::lldiv_t;

  using ::__gnu_cxx::_Exit;

  using ::__gnu_cxx::llabs;
  using ::__gnu_cxx::div;
  using ::__gnu_cxx::lldiv;

  using ::__gnu_cxx::atoll;
  using ::__gnu_cxx::strtof;
  using ::__gnu_cxx::strtoll;
  using ::__gnu_cxx::strtoull;
  using ::__gnu_cxx::strtold;
}



}
# 37 "/usr/include/c++/11/stdlib.h" 2 3

using std::abort;
using std::atexit;
using std::exit;


  using std::at_quick_exit;


  using std::quick_exit;




using std::div_t;
using std::ldiv_t;

using std::abs;
using std::atof;
using std::atoi;
using std::atol;
using std::bsearch;
using std::calloc;
using std::div;
using std::free;
using std::getenv;
using std::labs;
using std::ldiv;
using std::malloc;

using std::mblen;
using std::mbstowcs;
using std::mbtowc;

using std::qsort;
using std::rand;
using std::realloc;
using std::srand;
using std::strtod;
using std::strtol;
using std::strtoul;
using std::system;

using std::wcstombs;
using std::wctomb;
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2
# 1 "/usr/include/string.h" 1 3 4
# 26 "/usr/include/string.h" 3 4
# 1 "/usr/include/bits/libc-header-start.h" 1 3 4
# 27 "/usr/include/string.h" 2 3 4

extern "C" {




# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 34 "/usr/include/string.h" 2 3 4
# 43 "/usr/include/string.h" 3 4
extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
       size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern void *memmove (void *__dest, const void *__src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));





extern void *memccpy (void *__restrict __dest, const void *__restrict __src,
        int __c, size_t __n)
    noexcept (true) __attribute__ ((__nonnull__ (1, 2))) __attribute__ ((__access__ (__write_only__, 1, 4)));




extern void *memset (void *__s, int __c, size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int memcmp (const void *__s1, const void *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));



extern "C++"
{
extern void *memchr (void *__s, int __c, size_t __n)
      noexcept (true) __asm ("memchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern const void *memchr (const void *__s, int __c, size_t __n)
      noexcept (true) __asm ("memchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) void *
memchr (void *__s, int __c, size_t __n) noexcept (true)
{
  return __builtin_memchr (__s, __c, __n);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const void *
memchr (const void *__s, int __c, size_t __n) noexcept (true)
{
  return __builtin_memchr (__s, __c, __n);
}

}
# 99 "/usr/include/string.h" 3 4
extern "C++" void *rawmemchr (void *__s, int __c)
     noexcept (true) __asm ("rawmemchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern "C++" const void *rawmemchr (const void *__s, int __c)
     noexcept (true) __asm ("rawmemchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));







extern "C++" void *memrchr (void *__s, int __c, size_t __n)
      noexcept (true) __asm ("memrchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)))
      __attribute__ ((__access__ (__read_only__, 1, 3)));
extern "C++" const void *memrchr (const void *__s, int __c, size_t __n)
      noexcept (true) __asm ("memrchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)))
      __attribute__ ((__access__ (__read_only__, 1, 3)));
# 125 "/usr/include/string.h" 3 4
extern char *strcpy (char *__restrict __dest, const char *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern char *strncpy (char *__restrict __dest,
        const char *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern char *strcat (char *__restrict __dest, const char *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern char *strncat (char *__restrict __dest, const char *__restrict __src,
        size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int strcmp (const char *__s1, const char *__s2)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));

extern int strncmp (const char *__s1, const char *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern int strcoll (const char *__s1, const char *__s2)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));

extern size_t strxfrm (char *__restrict __dest,
         const char *__restrict __src, size_t __n)
    noexcept (true) __attribute__ ((__nonnull__ (2))) __attribute__ ((__access__ (__write_only__, 1, 3)));






extern int strcoll_l (const char *__s1, const char *__s2, locale_t __l)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2, 3)));


extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n,
    locale_t __l) noexcept (true) __attribute__ ((__nonnull__ (2, 4)))
     __attribute__ ((__access__ (__write_only__, 1, 3)));





extern char *strdup (const char *__s)
     noexcept (true) __attribute__ ((__malloc__)) __attribute__ ((__nonnull__ (1)));






extern char *strndup (const char *__string, size_t __n)
     noexcept (true) __attribute__ ((__malloc__)) __attribute__ ((__nonnull__ (1)));
# 208 "/usr/include/string.h" 3 4
extern "C++"
{
extern char *strchr (char *__s, int __c)
     noexcept (true) __asm ("strchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern const char *strchr (const char *__s, int __c)
     noexcept (true) __asm ("strchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
strchr (char *__s, int __c) noexcept (true)
{
  return __builtin_strchr (__s, __c);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
strchr (const char *__s, int __c) noexcept (true)
{
  return __builtin_strchr (__s, __c);
}

}






extern "C++"
{
extern char *strrchr (char *__s, int __c)
     noexcept (true) __asm ("strrchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern const char *strrchr (const char *__s, int __c)
     noexcept (true) __asm ("strrchr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
strrchr (char *__s, int __c) noexcept (true)
{
  return __builtin_strrchr (__s, __c);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
strrchr (const char *__s, int __c) noexcept (true)
{
  return __builtin_strrchr (__s, __c);
}

}
# 265 "/usr/include/string.h" 3 4
extern "C++" char *strchrnul (char *__s, int __c)
     noexcept (true) __asm ("strchrnul") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern "C++" const char *strchrnul (const char *__s, int __c)
     noexcept (true) __asm ("strchrnul") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
# 277 "/usr/include/string.h" 3 4
extern size_t strcspn (const char *__s, const char *__reject)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern size_t strspn (const char *__s, const char *__accept)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern "C++"
{
extern char *strpbrk (char *__s, const char *__accept)
     noexcept (true) __asm ("strpbrk") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
extern const char *strpbrk (const char *__s, const char *__accept)
     noexcept (true) __asm ("strpbrk") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
strpbrk (char *__s, const char *__accept) noexcept (true)
{
  return __builtin_strpbrk (__s, __accept);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
strpbrk (const char *__s, const char *__accept) noexcept (true)
{
  return __builtin_strpbrk (__s, __accept);
}

}






extern "C++"
{
extern char *strstr (char *__haystack, const char *__needle)
     noexcept (true) __asm ("strstr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
extern const char *strstr (const char *__haystack, const char *__needle)
     noexcept (true) __asm ("strstr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
strstr (char *__haystack, const char *__needle) noexcept (true)
{
  return __builtin_strstr (__haystack, __needle);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
strstr (const char *__haystack, const char *__needle) noexcept (true)
{
  return __builtin_strstr (__haystack, __needle);
}

}







extern char *strtok (char *__restrict __s, const char *__restrict __delim)
     noexcept (true) __attribute__ ((__nonnull__ (2)));



extern char *__strtok_r (char *__restrict __s,
    const char *__restrict __delim,
    char **__restrict __save_ptr)
     noexcept (true) __attribute__ ((__nonnull__ (2, 3)));

extern char *strtok_r (char *__restrict __s, const char *__restrict __delim,
         char **__restrict __save_ptr)
     noexcept (true) __attribute__ ((__nonnull__ (2, 3)));





extern "C++" char *strcasestr (char *__haystack, const char *__needle)
     noexcept (true) __asm ("strcasestr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
extern "C++" const char *strcasestr (const char *__haystack,
         const char *__needle)
     noexcept (true) __asm ("strcasestr") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
# 373 "/usr/include/string.h" 3 4
extern void *memmem (const void *__haystack, size_t __haystacklen,
       const void *__needle, size_t __needlelen)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 3)))
    __attribute__ ((__access__ (__read_only__, 1, 2)))
    __attribute__ ((__access__ (__read_only__, 3, 4)));



extern void *__mempcpy (void *__restrict __dest,
   const void *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern void *mempcpy (void *__restrict __dest,
        const void *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern size_t strlen (const char *__s)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));




extern size_t strnlen (const char *__string, size_t __maxlen)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));




extern char *strerror (int __errnum) noexcept (true);
# 428 "/usr/include/string.h" 3 4
extern char *strerror_r (int __errnum, char *__buf, size_t __buflen)
     noexcept (true) __attribute__ ((__nonnull__ (2))) __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 2, 3)));




extern const char *strerrordesc_np (int __err) noexcept (true);

extern const char *strerrorname_np (int __err) noexcept (true);





extern char *strerror_l (int __errnum, locale_t __l) noexcept (true);



# 1 "/usr/include/strings.h" 1 3 4
# 23 "/usr/include/strings.h" 3 4
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 24 "/usr/include/strings.h" 2 3 4






extern "C" {



extern int bcmp (const void *__s1, const void *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern void bcopy (const void *__src, void *__dest, size_t __n)
  noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern void bzero (void *__s, size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1)));



extern "C++"
{
extern char *index (char *__s, int __c)
     noexcept (true) __asm ("index") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern const char *index (const char *__s, int __c)
     noexcept (true) __asm ("index") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
index (char *__s, int __c) noexcept (true)
{
  return __builtin_index (__s, __c);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
index (const char *__s, int __c) noexcept (true)
{
  return __builtin_index (__s, __c);
}

}







extern "C++"
{
extern char *rindex (char *__s, int __c)
     noexcept (true) __asm ("rindex") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
extern const char *rindex (const char *__s, int __c)
     noexcept (true) __asm ("rindex") __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) char *
rindex (char *__s, int __c) noexcept (true)
{
  return __builtin_rindex (__s, __c);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) const char *
rindex (const char *__s, int __c) noexcept (true)
{
  return __builtin_rindex (__s, __c);
}

}
# 104 "/usr/include/strings.h" 3 4
extern int ffs (int __i) noexcept (true) __attribute__ ((__const__));





extern int ffsl (long int __l) noexcept (true) __attribute__ ((__const__));
__extension__ extern int ffsll (long long int __ll)
     noexcept (true) __attribute__ ((__const__));



extern int strcasecmp (const char *__s1, const char *__s2)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern int strncasecmp (const char *__s1, const char *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));






extern int strcasecmp_l (const char *__s1, const char *__s2, locale_t __loc)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2, 3)));



extern int strncasecmp_l (const char *__s1, const char *__s2,
     size_t __n, locale_t __loc)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2, 4)));


}





# 1 "/usr/include/bits/strings_fortified.h" 1 3 4
# 22 "/usr/include/bits/strings_fortified.h" 3 4
extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void
__attribute__ ((__leaf__)) bcopy (const void *__src, void *__dest, size_t __len) noexcept (true)
{
  (void) __builtin___memmove_chk (__dest, __src, __len, __builtin_object_size (__dest, 0));
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void
__attribute__ ((__leaf__)) bzero (void *__dest, size_t __len) noexcept (true)
{
  (void) __builtin___memset_chk (__dest, '\0', __len, __builtin_object_size (__dest, 0));
}
# 145 "/usr/include/strings.h" 2 3 4
# 447 "/usr/include/string.h" 2 3 4



extern void explicit_bzero (void *__s, size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1)))
    __attribute__ ((__access__ (__write_only__, 1, 2)));



extern char *strsep (char **__restrict __stringp,
       const char *__restrict __delim)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern char *strsignal (int __sig) noexcept (true);



extern const char *sigabbrev_np (int __sig) noexcept (true);


extern const char *sigdescr_np (int __sig) noexcept (true);



extern char *__stpcpy (char *__restrict __dest, const char *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern char *stpcpy (char *__restrict __dest, const char *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern char *__stpncpy (char *__restrict __dest,
   const char *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));
extern char *stpncpy (char *__restrict __dest,
        const char *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern int strverscmp (const char *__s1, const char *__s2)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));


extern char *strfry (char *__string) noexcept (true) __attribute__ ((__nonnull__ (1)));


extern void *memfrob (void *__s, size_t __n) noexcept (true) __attribute__ ((__nonnull__ (1)))
    __attribute__ ((__access__ (__write_only__, 1, 2)));







extern "C++" char *basename (char *__filename)
     noexcept (true) __asm ("basename") __attribute__ ((__nonnull__ (1)));
extern "C++" const char *basename (const char *__filename)
     noexcept (true) __asm ("basename") __attribute__ ((__nonnull__ (1)));
# 519 "/usr/include/string.h" 3 4
# 1 "/usr/include/bits/string_fortified.h" 1 3 4
# 25 "/usr/include/bits/string_fortified.h" 3 4
extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void *
__attribute__ ((__leaf__)) memcpy (void *__restrict __dest, const void *__restrict __src, size_t __len) noexcept (true)

{
  return __builtin___memcpy_chk (__dest, __src, __len, __builtin_object_size (__dest, 0));
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void *
__attribute__ ((__leaf__)) memmove (void *__dest, const void *__src, size_t __len) noexcept (true)
{
  return __builtin___memmove_chk (__dest, __src, __len, __builtin_object_size (__dest, 0));
}


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void *
__attribute__ ((__leaf__)) mempcpy (void *__restrict __dest, const void *__restrict __src, size_t __len) noexcept (true)

{
  return __builtin___mempcpy_chk (__dest, __src, __len, __builtin_object_size (__dest, 0));
}
# 53 "/usr/include/bits/string_fortified.h" 3 4
extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void *
__attribute__ ((__leaf__)) memset (void *__dest, int __ch, size_t __len) noexcept (true)
{
  return __builtin___memset_chk (__dest, __ch, __len, __builtin_object_size (__dest, 0));
}




void __explicit_bzero_chk (void *__dest, size_t __len, size_t __destlen)
  noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__access__ (__write_only__, 1, 2)));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) void
__attribute__ ((__leaf__)) explicit_bzero (void *__dest, size_t __len) noexcept (true)
{
  __explicit_bzero_chk (__dest, __len, __builtin_object_size (__dest, 0));
}


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) strcpy (char *__restrict __dest, const char *__restrict __src) noexcept (true)
{
  return __builtin___strcpy_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1));
}


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) stpcpy (char *__restrict __dest, const char *__restrict __src) noexcept (true)
{
  return __builtin___stpcpy_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1));
}



extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) strncpy (char *__restrict __dest, const char *__restrict __src, size_t __len) noexcept (true)

{
  return __builtin___strncpy_chk (__dest, __src, __len, __builtin_object_size (__dest, 2 > 1));
}


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) stpncpy (char *__dest, const char *__src, size_t __n) noexcept (true)
{
  return __builtin___stpncpy_chk (__dest, __src, __n, __builtin_object_size (__dest, 2 > 1));
}
# 118 "/usr/include/bits/string_fortified.h" 3 4
extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) strcat (char *__restrict __dest, const char *__restrict __src) noexcept (true)
{
  return __builtin___strcat_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1));
}


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) char *
__attribute__ ((__leaf__)) strncat (char *__restrict __dest, const char *__restrict __src, size_t __len) noexcept (true)

{
  return __builtin___strncat_chk (__dest, __src, __len, __builtin_object_size (__dest, 2 > 1));
}
# 520 "/usr/include/string.h" 2 3 4



}
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2


# 1 "/usr/include/c++/11/memory" 1 3
# 47 "/usr/include/c++/11/memory" 3
       
# 48 "/usr/include/c++/11/memory" 3
# 63 "/usr/include/c++/11/memory" 3
# 1 "/usr/include/c++/11/bits/stl_algobase.h" 1 3
# 60 "/usr/include/c++/11/bits/stl_algobase.h" 3
# 1 "/usr/include/c++/11/bits/functexcept.h" 1 3
# 40 "/usr/include/c++/11/bits/functexcept.h" 3
# 1 "/usr/include/c++/11/bits/exception_defines.h" 1 3
# 41 "/usr/include/c++/11/bits/functexcept.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{



  void
  __throw_bad_exception(void) __attribute__((__noreturn__));


  void
  __throw_bad_alloc(void) __attribute__((__noreturn__));

  void
  __throw_bad_array_new_length(void) __attribute__((__noreturn__));


  void
  __throw_bad_cast(void) __attribute__((__noreturn__));

  void
  __throw_bad_typeid(void) __attribute__((__noreturn__));


  void
  __throw_logic_error(const char*) __attribute__((__noreturn__));

  void
  __throw_domain_error(const char*) __attribute__((__noreturn__));

  void
  __throw_invalid_argument(const char*) __attribute__((__noreturn__));

  void
  __throw_length_error(const char*) __attribute__((__noreturn__));

  void
  __throw_out_of_range(const char*) __attribute__((__noreturn__));

  void
  __throw_out_of_range_fmt(const char*, ...) __attribute__((__noreturn__))
    __attribute__((__format__(__gnu_printf__, 1, 2)));

  void
  __throw_runtime_error(const char*) __attribute__((__noreturn__));

  void
  __throw_range_error(const char*) __attribute__((__noreturn__));

  void
  __throw_overflow_error(const char*) __attribute__((__noreturn__));

  void
  __throw_underflow_error(const char*) __attribute__((__noreturn__));


  void
  __throw_ios_failure(const char*) __attribute__((__noreturn__));

  void
  __throw_ios_failure(const char*, int) __attribute__((__noreturn__));


  void
  __throw_system_error(int) __attribute__((__noreturn__));


  void
  __throw_future_error(int) __attribute__((__noreturn__));


  void
  __throw_bad_function_call() __attribute__((__noreturn__));


}
# 61 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/bits/cpp_type_traits.h" 1 3
# 35 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
       
# 36 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
# 67 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
extern "C++" {

namespace std __attribute__ ((__visibility__ ("default")))
{


  struct __true_type { };
  struct __false_type { };

  template<bool>
    struct __truth_type
    { typedef __false_type __type; };

  template<>
    struct __truth_type<true>
    { typedef __true_type __type; };



  template<class _Sp, class _Tp>
    struct __traitor
    {
      enum { __value = bool(_Sp::__value) || bool(_Tp::__value) };
      typedef typename __truth_type<__value>::__type __type;
    };


  template<typename, typename>
    struct __are_same
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };

  template<typename _Tp>
    struct __are_same<_Tp, _Tp>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };


  template<typename _Tp>
    struct __is_void
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };

  template<>
    struct __is_void<void>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };




  template<typename _Tp>
    struct __is_integer
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };





  template<>
    struct __is_integer<bool>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<signed char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<unsigned char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };


  template<>
    struct __is_integer<wchar_t>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };
# 184 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
  template<>
    struct __is_integer<char16_t>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<char32_t>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };


  template<>
    struct __is_integer<short>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<unsigned short>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<int>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<unsigned int>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<long>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<unsigned long>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<long long>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_integer<unsigned long long>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };
# 287 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
  template<typename _Tp>
    struct __is_floating
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };


  template<>
    struct __is_floating<float>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_floating<double>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_floating<long double>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };




  template<typename _Tp>
    struct __is_pointer
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };

  template<typename _Tp>
    struct __is_pointer<_Tp*>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };




  template<typename _Tp>
    struct __is_arithmetic
    : public __traitor<__is_integer<_Tp>, __is_floating<_Tp> >
    { };




  template<typename _Tp>
    struct __is_scalar
    : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> >
    { };




  template<typename _Tp>
    struct __is_char
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };

  template<>
    struct __is_char<char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };


  template<>
    struct __is_char<wchar_t>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };


  template<typename _Tp>
    struct __is_byte
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };

  template<>
    struct __is_byte<char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_byte<signed char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<>
    struct __is_byte<unsigned char>
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };
# 423 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
  template<typename> struct iterator_traits;


  template<typename _Tp>
    struct __is_nonvolatile_trivially_copyable
    {
      enum { __value = __is_trivially_copyable(_Tp) };
    };




  template<typename _Tp>
    struct __is_nonvolatile_trivially_copyable<volatile _Tp>
    {
      enum { __value = 0 };
    };


  template<typename _OutputIter, typename _InputIter>
    struct __memcpyable
    {
      enum { __value = 0 };
    };

  template<typename _Tp>
    struct __memcpyable<_Tp*, _Tp*>
    : __is_nonvolatile_trivially_copyable<_Tp>
    { };

  template<typename _Tp>
    struct __memcpyable<_Tp*, const _Tp*>
    : __is_nonvolatile_trivially_copyable<_Tp>
    { };






  template<typename _Iter1, typename _Iter2>
    struct __memcmpable
    {
      enum { __value = 0 };
    };


  template<typename _Tp>
    struct __memcmpable<_Tp*, _Tp*>
    : __is_nonvolatile_trivially_copyable<_Tp>
    { };

  template<typename _Tp>
    struct __memcmpable<const _Tp*, _Tp*>
    : __is_nonvolatile_trivially_copyable<_Tp>
    { };

  template<typename _Tp>
    struct __memcmpable<_Tp*, const _Tp*>
    : __is_nonvolatile_trivially_copyable<_Tp>
    { };







  template<typename _Tp, bool _TreatAsBytes =



 __is_byte<_Tp>::__value

    >
    struct __is_memcmp_ordered
    {
      static const bool __value = _Tp(-1) > _Tp(1);
    };

  template<typename _Tp>
    struct __is_memcmp_ordered<_Tp, false>
    {
      static const bool __value = false;
    };


  template<typename _Tp, typename _Up, bool = sizeof(_Tp) == sizeof(_Up)>
    struct __is_memcmp_ordered_with
    {
      static const bool __value = __is_memcmp_ordered<_Tp>::__value
 && __is_memcmp_ordered<_Up>::__value;
    };

  template<typename _Tp, typename _Up>
    struct __is_memcmp_ordered_with<_Tp, _Up, false>
    {
      static const bool __value = false;
    };
# 548 "/usr/include/c++/11/bits/cpp_type_traits.h" 3
  template<typename _Tp>
    struct __is_move_iterator
    {
      enum { __value = 0 };
      typedef __false_type __type;
    };



  template<typename _Iterator>
   
    inline _Iterator
    __miter_base(_Iterator __it)
    { return __it; }


}
}
# 62 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/ext/type_traits.h" 1 3
# 32 "/usr/include/c++/11/ext/type_traits.h" 3
       
# 33 "/usr/include/c++/11/ext/type_traits.h" 3




extern "C++" {

namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{



  template<bool, typename>
    struct __enable_if
    { };

  template<typename _Tp>
    struct __enable_if<true, _Tp>
    { typedef _Tp __type; };



  template<bool _Cond, typename _Iftrue, typename _Iffalse>
    struct __conditional_type
    { typedef _Iftrue __type; };

  template<typename _Iftrue, typename _Iffalse>
    struct __conditional_type<false, _Iftrue, _Iffalse>
    { typedef _Iffalse __type; };



  template<typename _Tp>
    struct __add_unsigned
    {
    private:
      typedef __enable_if<std::__is_integer<_Tp>::__value, _Tp> __if_type;

    public:
      typedef typename __if_type::__type __type;
    };

  template<>
    struct __add_unsigned<char>
    { typedef unsigned char __type; };

  template<>
    struct __add_unsigned<signed char>
    { typedef unsigned char __type; };

  template<>
    struct __add_unsigned<short>
    { typedef unsigned short __type; };

  template<>
    struct __add_unsigned<int>
    { typedef unsigned int __type; };

  template<>
    struct __add_unsigned<long>
    { typedef unsigned long __type; };

  template<>
    struct __add_unsigned<long long>
    { typedef unsigned long long __type; };


  template<>
    struct __add_unsigned<bool>;

  template<>
    struct __add_unsigned<wchar_t>;



  template<typename _Tp>
    struct __remove_unsigned
    {
    private:
      typedef __enable_if<std::__is_integer<_Tp>::__value, _Tp> __if_type;

    public:
      typedef typename __if_type::__type __type;
    };

  template<>
    struct __remove_unsigned<char>
    { typedef signed char __type; };

  template<>
    struct __remove_unsigned<unsigned char>
    { typedef signed char __type; };

  template<>
    struct __remove_unsigned<unsigned short>
    { typedef short __type; };

  template<>
    struct __remove_unsigned<unsigned int>
    { typedef int __type; };

  template<>
    struct __remove_unsigned<unsigned long>
    { typedef long __type; };

  template<>
    struct __remove_unsigned<unsigned long long>
    { typedef long long __type; };


  template<>
    struct __remove_unsigned<bool>;

  template<>
    struct __remove_unsigned<wchar_t>;



  template<typename _Type>
    inline bool
    __is_null_pointer(_Type* __ptr)
    { return __ptr == 0; }

  template<typename _Type>
    inline bool
    __is_null_pointer(_Type)
    { return false; }


  inline bool
  __is_null_pointer(std::nullptr_t)
  { return true; }



  template<typename _Tp, bool = std::__is_integer<_Tp>::__value>
    struct __promote
    { typedef double __type; };




  template<typename _Tp>
    struct __promote<_Tp, false>
    { };

  template<>
    struct __promote<long double>
    { typedef long double __type; };

  template<>
    struct __promote<double>
    { typedef double __type; };

  template<>
    struct __promote<float>
    { typedef float __type; };

  template<typename _Tp, typename _Up,
           typename _Tp2 = typename __promote<_Tp>::__type,
           typename _Up2 = typename __promote<_Up>::__type>
    struct __promote_2
    {
      typedef __typeof__(_Tp2() + _Up2()) __type;
    };

  template<typename _Tp, typename _Up, typename _Vp,
           typename _Tp2 = typename __promote<_Tp>::__type,
           typename _Up2 = typename __promote<_Up>::__type,
           typename _Vp2 = typename __promote<_Vp>::__type>
    struct __promote_3
    {
      typedef __typeof__(_Tp2() + _Up2() + _Vp2()) __type;
    };

  template<typename _Tp, typename _Up, typename _Vp, typename _Wp,
           typename _Tp2 = typename __promote<_Tp>::__type,
           typename _Up2 = typename __promote<_Up>::__type,
           typename _Vp2 = typename __promote<_Vp>::__type,
           typename _Wp2 = typename __promote<_Wp>::__type>
    struct __promote_4
    {
      typedef __typeof__(_Tp2() + _Up2() + _Vp2() + _Wp2()) __type;
    };


}
}
# 63 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/ext/numeric_traits.h" 1 3
# 32 "/usr/include/c++/11/ext/numeric_traits.h" 3
       
# 33 "/usr/include/c++/11/ext/numeric_traits.h" 3




namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{

# 50 "/usr/include/c++/11/ext/numeric_traits.h" 3
  template<typename _Tp>
    struct __is_integer_nonstrict
    : public std::__is_integer<_Tp>
    {
      using std::__is_integer<_Tp>::__value;


      enum { __width = __value ? sizeof(_Tp) * 8 : 0 };
    };

  template<typename _Value>
    struct __numeric_traits_integer
    {

      static_assert(__is_integer_nonstrict<_Value>::__value,
      "invalid specialization");




      static const bool __is_signed = (_Value)(-1) < 0;
      static const int __digits
 = __is_integer_nonstrict<_Value>::__width - __is_signed;


      static const _Value __max = __is_signed
 ? (((((_Value)1 << (__digits - 1)) - 1) << 1) + 1)
 : ~(_Value)0;
      static const _Value __min = __is_signed ? -__max - 1 : (_Value)0;
    };

  template<typename _Value>
    const _Value __numeric_traits_integer<_Value>::__min;

  template<typename _Value>
    const _Value __numeric_traits_integer<_Value>::__max;

  template<typename _Value>
    const bool __numeric_traits_integer<_Value>::__is_signed;

  template<typename _Value>
    const int __numeric_traits_integer<_Value>::__digits;
# 128 "/usr/include/c++/11/ext/numeric_traits.h" 3
  template<> struct __is_integer_nonstrict<__int128> { enum { __value = 1 }; typedef std::__true_type __type; enum { __width = 128 }; }; template<> struct __is_integer_nonstrict<unsigned __int128> { enum { __value = 1 }; typedef std::__true_type __type; enum { __width = 128 }; };






  template<typename _Tp>
    using __int_traits = __numeric_traits_integer<_Tp>;
# 155 "/usr/include/c++/11/ext/numeric_traits.h" 3
  template<typename _Value>
    struct __numeric_traits_floating
    {

      static const int __max_digits10 = (2 + (std::__are_same<_Value, float>::__value ? 24 : std::__are_same<_Value, double>::__value ? 53 : 64) * 643L / 2136);


      static const bool __is_signed = true;
      static const int __digits10 = (std::__are_same<_Value, float>::__value ? 6 : std::__are_same<_Value, double>::__value ? 15 : 18);
      static const int __max_exponent10 = (std::__are_same<_Value, float>::__value ? 38 : std::__are_same<_Value, double>::__value ? 308 : 4932);
    };

  template<typename _Value>
    const int __numeric_traits_floating<_Value>::__max_digits10;

  template<typename _Value>
    const bool __numeric_traits_floating<_Value>::__is_signed;

  template<typename _Value>
    const int __numeric_traits_floating<_Value>::__digits10;

  template<typename _Value>
    const int __numeric_traits_floating<_Value>::__max_exponent10;






  template<typename _Value>
    struct __numeric_traits
    : public __numeric_traits_integer<_Value>
    { };

  template<>
    struct __numeric_traits<float>
    : public __numeric_traits_floating<float>
    { };

  template<>
    struct __numeric_traits<double>
    : public __numeric_traits_floating<double>
    { };

  template<>
    struct __numeric_traits<long double>
    : public __numeric_traits_floating<long double>
    { };
# 236 "/usr/include/c++/11/ext/numeric_traits.h" 3

}
# 64 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_pair.h" 1 3
# 59 "/usr/include/c++/11/bits/stl_pair.h" 3
# 1 "/usr/include/c++/11/bits/move.h" 1 3
# 38 "/usr/include/c++/11/bits/move.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{







  template<typename _Tp>
    inline constexpr _Tp*
    __addressof(_Tp& __r) noexcept
    { return __builtin_addressof(__r); }




}

# 1 "/usr/include/c++/11/type_traits" 1 3
# 32 "/usr/include/c++/11/type_traits" 3
       
# 33 "/usr/include/c++/11/type_traits" 3







namespace std __attribute__ ((__visibility__ ("default")))
{

# 56 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp, _Tp __v>
    struct integral_constant
    {
      static constexpr _Tp value = __v;
      typedef _Tp value_type;
      typedef integral_constant<_Tp, __v> type;
      constexpr operator value_type() const noexcept { return value; }






    };

  template<typename _Tp, _Tp __v>
    constexpr _Tp integral_constant<_Tp, __v>::value;


  typedef integral_constant<bool, true> true_type;


  typedef integral_constant<bool, false> false_type;

  template<bool __v>
    using __bool_constant = integral_constant<bool, __v>;
# 91 "/usr/include/c++/11/type_traits" 3
  template<bool, typename, typename>
    struct conditional;

  template <typename _Type>
    struct __type_identity
    { using type = _Type; };

  template<typename _Tp>
    using __type_identity_t = typename __type_identity<_Tp>::type;

  template<typename...>
    struct __or_;

  template<>
    struct __or_<>
    : public false_type
    { };

  template<typename _B1>
    struct __or_<_B1>
    : public _B1
    { };

  template<typename _B1, typename _B2>
    struct __or_<_B1, _B2>
    : public conditional<_B1::value, _B1, _B2>::type
    { };

  template<typename _B1, typename _B2, typename _B3, typename... _Bn>
    struct __or_<_B1, _B2, _B3, _Bn...>
    : public conditional<_B1::value, _B1, __or_<_B2, _B3, _Bn...>>::type
    { };

  template<typename...>
    struct __and_;

  template<>
    struct __and_<>
    : public true_type
    { };

  template<typename _B1>
    struct __and_<_B1>
    : public _B1
    { };

  template<typename _B1, typename _B2>
    struct __and_<_B1, _B2>
    : public conditional<_B1::value, _B2, _B1>::type
    { };

  template<typename _B1, typename _B2, typename _B3, typename... _Bn>
    struct __and_<_B1, _B2, _B3, _Bn...>
    : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type
    { };

  template<typename _Pp>
    struct __not_
    : public __bool_constant<!bool(_Pp::value)>
    { };
# 188 "/usr/include/c++/11/type_traits" 3
  template<typename>
    struct is_reference;
  template<typename>
    struct is_function;
  template<typename>
    struct is_void;
  template<typename>
    struct __is_array_unknown_bounds;




  template <typename _Tp, size_t = sizeof(_Tp)>
    constexpr true_type __is_complete_or_unbounded(__type_identity<_Tp>)
    { return {}; }

  template <typename _TypeIdentity,
      typename _NestedType = typename _TypeIdentity::type>
    constexpr typename __or_<
      is_reference<_NestedType>,
      is_function<_NestedType>,
      is_void<_NestedType>,
      __is_array_unknown_bounds<_NestedType>
    >::type __is_complete_or_unbounded(_TypeIdentity)
    { return {}; }






  template<typename _Tp>
    struct __success_type
    { typedef _Tp type; };

  struct __failure_type
  { };

  template<typename>
    struct remove_cv;


  template<typename _Tp>
    using __remove_cv_t = typename remove_cv<_Tp>::type;

  template<typename>
    struct is_const;



  template<typename>
    struct __is_void_helper
    : public false_type { };

  template<>
    struct __is_void_helper<void>
    : public true_type { };


  template<typename _Tp>
    struct is_void
    : public __is_void_helper<__remove_cv_t<_Tp>>::type
    { };

  template<typename>
    struct __is_integral_helper
    : public false_type { };

  template<>
    struct __is_integral_helper<bool>
    : public true_type { };

  template<>
    struct __is_integral_helper<char>
    : public true_type { };

  template<>
    struct __is_integral_helper<signed char>
    : public true_type { };

  template<>
    struct __is_integral_helper<unsigned char>
    : public true_type { };





  template<>
    struct __is_integral_helper<wchar_t>
    : public true_type { };
# 287 "/usr/include/c++/11/type_traits" 3
  template<>
    struct __is_integral_helper<char16_t>
    : public true_type { };

  template<>
    struct __is_integral_helper<char32_t>
    : public true_type { };

  template<>
    struct __is_integral_helper<short>
    : public true_type { };

  template<>
    struct __is_integral_helper<unsigned short>
    : public true_type { };

  template<>
    struct __is_integral_helper<int>
    : public true_type { };

  template<>
    struct __is_integral_helper<unsigned int>
    : public true_type { };

  template<>
    struct __is_integral_helper<long>
    : public true_type { };

  template<>
    struct __is_integral_helper<unsigned long>
    : public true_type { };

  template<>
    struct __is_integral_helper<long long>
    : public true_type { };

  template<>
    struct __is_integral_helper<unsigned long long>
    : public true_type { };
# 367 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct is_integral
    : public __is_integral_helper<__remove_cv_t<_Tp>>::type
    { };

  template<typename>
    struct __is_floating_point_helper
    : public false_type { };

  template<>
    struct __is_floating_point_helper<float>
    : public true_type { };

  template<>
    struct __is_floating_point_helper<double>
    : public true_type { };

  template<>
    struct __is_floating_point_helper<long double>
    : public true_type { };
# 395 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct is_floating_point
    : public __is_floating_point_helper<__remove_cv_t<_Tp>>::type
    { };


  template<typename>
    struct is_array
    : public false_type { };

  template<typename _Tp, std::size_t _Size>
    struct is_array<_Tp[_Size]>
    : public true_type { };

  template<typename _Tp>
    struct is_array<_Tp[]>
    : public true_type { };

  template<typename>
    struct __is_pointer_helper
    : public false_type { };

  template<typename _Tp>
    struct __is_pointer_helper<_Tp*>
    : public true_type { };


  template<typename _Tp>
    struct is_pointer
    : public __is_pointer_helper<__remove_cv_t<_Tp>>::type
    { };


  template<typename>
    struct is_lvalue_reference
    : public false_type { };

  template<typename _Tp>
    struct is_lvalue_reference<_Tp&>
    : public true_type { };


  template<typename>
    struct is_rvalue_reference
    : public false_type { };

  template<typename _Tp>
    struct is_rvalue_reference<_Tp&&>
    : public true_type { };

  template<typename>
    struct __is_member_object_pointer_helper
    : public false_type { };

  template<typename _Tp, typename _Cp>
    struct __is_member_object_pointer_helper<_Tp _Cp::*>
    : public __not_<is_function<_Tp>>::type { };


  template<typename _Tp>
    struct is_member_object_pointer
    : public __is_member_object_pointer_helper<__remove_cv_t<_Tp>>::type
    { };

  template<typename>
    struct __is_member_function_pointer_helper
    : public false_type { };

  template<typename _Tp, typename _Cp>
    struct __is_member_function_pointer_helper<_Tp _Cp::*>
    : public is_function<_Tp>::type { };


  template<typename _Tp>
    struct is_member_function_pointer
    : public __is_member_function_pointer_helper<__remove_cv_t<_Tp>>::type
    { };


  template<typename _Tp>
    struct is_enum
    : public integral_constant<bool, __is_enum(_Tp)>
    { };


  template<typename _Tp>
    struct is_union
    : public integral_constant<bool, __is_union(_Tp)>
    { };


  template<typename _Tp>
    struct is_class
    : public integral_constant<bool, __is_class(_Tp)>
    { };


  template<typename _Tp>
    struct is_function
    : public __bool_constant<!is_const<const _Tp>::value> { };

  template<typename _Tp>
    struct is_function<_Tp&>
    : public false_type { };

  template<typename _Tp>
    struct is_function<_Tp&&>
    : public false_type { };



  template<typename>
    struct __is_null_pointer_helper
    : public false_type { };

  template<>
    struct __is_null_pointer_helper<std::nullptr_t>
    : public true_type { };


  template<typename _Tp>
    struct is_null_pointer
    : public __is_null_pointer_helper<__remove_cv_t<_Tp>>::type
    { };


  template<typename _Tp>
    struct __is_nullptr_t
    : public is_null_pointer<_Tp>
    { } __attribute__ ((__deprecated__ ("use '" "std::is_null_pointer" "' instead")));




  template<typename _Tp>
    struct is_reference
    : public __or_<is_lvalue_reference<_Tp>,
                   is_rvalue_reference<_Tp>>::type
    { };


  template<typename _Tp>
    struct is_arithmetic
    : public __or_<is_integral<_Tp>, is_floating_point<_Tp>>::type
    { };


  template<typename _Tp>
    struct is_fundamental
    : public __or_<is_arithmetic<_Tp>, is_void<_Tp>,
     is_null_pointer<_Tp>>::type
    { };


  template<typename _Tp>
    struct is_object
    : public __not_<__or_<is_function<_Tp>, is_reference<_Tp>,
                          is_void<_Tp>>>::type
    { };

  template<typename>
    struct is_member_pointer;


  template<typename _Tp>
    struct is_scalar
    : public __or_<is_arithmetic<_Tp>, is_enum<_Tp>, is_pointer<_Tp>,
                   is_member_pointer<_Tp>, is_null_pointer<_Tp>>::type
    { };


  template<typename _Tp>
    struct is_compound
    : public __not_<is_fundamental<_Tp>>::type { };

  template<typename _Tp>
    struct __is_member_pointer_helper
    : public false_type { };

  template<typename _Tp, typename _Cp>
    struct __is_member_pointer_helper<_Tp _Cp::*>
    : public true_type { };


  template<typename _Tp>
    struct is_member_pointer
    : public __is_member_pointer_helper<__remove_cv_t<_Tp>>::type
    { };

  template<typename, typename>
    struct is_same;

  template<typename _Tp, typename... _Types>
    using __is_one_of = __or_<is_same<_Tp, _Types>...>;


  template<typename _Tp>
    using __is_signed_integer = __is_one_of<__remove_cv_t<_Tp>,
   signed char, signed short, signed int, signed long,
   signed long long
# 607 "/usr/include/c++/11/type_traits" 3
   >;


  template<typename _Tp>
    using __is_unsigned_integer = __is_one_of<__remove_cv_t<_Tp>,
   unsigned char, unsigned short, unsigned int, unsigned long,
   unsigned long long
# 626 "/usr/include/c++/11/type_traits" 3
   >;


  template<typename _Tp>
    using __is_standard_integer
      = __or_<__is_signed_integer<_Tp>, __is_unsigned_integer<_Tp>>;


  template<typename...> using __void_t = void;



  template<typename _Tp, typename = void>
    struct __is_referenceable
    : public false_type
    { };

  template<typename _Tp>
    struct __is_referenceable<_Tp, __void_t<_Tp&>>
    : public true_type
    { };




  template<typename>
    struct is_const
    : public false_type { };

  template<typename _Tp>
    struct is_const<_Tp const>
    : public true_type { };


  template<typename>
    struct is_volatile
    : public false_type { };

  template<typename _Tp>
    struct is_volatile<_Tp volatile>
    : public true_type { };


  template<typename _Tp>
    struct is_trivial
    : public integral_constant<bool, __is_trivial(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_trivially_copyable
    : public integral_constant<bool, __is_trivially_copyable(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_standard_layout
    : public integral_constant<bool, __is_standard_layout(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };



  template<typename _Tp>
    struct
   
    is_pod
    : public integral_constant<bool, __is_pod(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct
   
    is_literal_type
    : public integral_constant<bool, __is_literal_type(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_empty
    : public integral_constant<bool, __is_empty(_Tp)>
    { };


  template<typename _Tp>
    struct is_polymorphic
    : public integral_constant<bool, __is_polymorphic(_Tp)>
    { };
# 740 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct is_abstract
    : public integral_constant<bool, __is_abstract(_Tp)>
    { };

  template<typename _Tp,
    bool = is_arithmetic<_Tp>::value>
    struct __is_signed_helper
    : public false_type { };

  template<typename _Tp>
    struct __is_signed_helper<_Tp, true>
    : public integral_constant<bool, _Tp(-1) < _Tp(0)>
    { };


  template<typename _Tp>
    struct is_signed
    : public __is_signed_helper<_Tp>::type
    { };


  template<typename _Tp>
    struct is_unsigned
    : public __and_<is_arithmetic<_Tp>, __not_<is_signed<_Tp>>>
    { };
# 775 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp, typename _Up = _Tp&&>
    _Up
    __declval(int);

  template<typename _Tp>
    _Tp
    __declval(long);

  template<typename _Tp>
    auto declval() noexcept -> decltype(__declval<_Tp>(0));

  template<typename, unsigned = 0>
    struct extent;

  template<typename>
    struct remove_all_extents;

  template<typename _Tp>
    struct __is_array_known_bounds
    : public integral_constant<bool, (extent<_Tp>::value > 0)>
    { };

  template<typename _Tp>
    struct __is_array_unknown_bounds
    : public __and_<is_array<_Tp>, __not_<extent<_Tp>>>
    { };






  struct __do_is_destructible_impl
  {
    template<typename _Tp, typename = decltype(declval<_Tp&>().~_Tp())>
      static true_type __test(int);

    template<typename>
      static false_type __test(...);
  };

  template<typename _Tp>
    struct __is_destructible_impl
    : public __do_is_destructible_impl
    {
      typedef decltype(__test<_Tp>(0)) type;
    };

  template<typename _Tp,
           bool = __or_<is_void<_Tp>,
                        __is_array_unknown_bounds<_Tp>,
                        is_function<_Tp>>::value,
           bool = __or_<is_reference<_Tp>, is_scalar<_Tp>>::value>
    struct __is_destructible_safe;

  template<typename _Tp>
    struct __is_destructible_safe<_Tp, false, false>
    : public __is_destructible_impl<typename
               remove_all_extents<_Tp>::type>::type
    { };

  template<typename _Tp>
    struct __is_destructible_safe<_Tp, true, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_destructible_safe<_Tp, false, true>
    : public true_type { };


  template<typename _Tp>
    struct is_destructible
    : public __is_destructible_safe<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };





  struct __do_is_nt_destructible_impl
  {
    template<typename _Tp>
      static __bool_constant<noexcept(declval<_Tp&>().~_Tp())>
      __test(int);

    template<typename>
      static false_type __test(...);
  };

  template<typename _Tp>
    struct __is_nt_destructible_impl
    : public __do_is_nt_destructible_impl
    {
      typedef decltype(__test<_Tp>(0)) type;
    };

  template<typename _Tp,
           bool = __or_<is_void<_Tp>,
                        __is_array_unknown_bounds<_Tp>,
                        is_function<_Tp>>::value,
           bool = __or_<is_reference<_Tp>, is_scalar<_Tp>>::value>
    struct __is_nt_destructible_safe;

  template<typename _Tp>
    struct __is_nt_destructible_safe<_Tp, false, false>
    : public __is_nt_destructible_impl<typename
               remove_all_extents<_Tp>::type>::type
    { };

  template<typename _Tp>
    struct __is_nt_destructible_safe<_Tp, true, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_nt_destructible_safe<_Tp, false, true>
    : public true_type { };


  template<typename _Tp>
    struct is_nothrow_destructible
    : public __is_nt_destructible_safe<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, typename... _Args>
    struct __is_constructible_impl
    : public __bool_constant<__is_constructible(_Tp, _Args...)>
    { };


  template<typename _Tp, typename... _Args>
    struct is_constructible
      : public __is_constructible_impl<_Tp, _Args...>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_default_constructible
    : public __is_constructible_impl<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_copy_constructible_impl;

  template<typename _Tp>
    struct __is_copy_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_copy_constructible_impl<_Tp, true>
    : public __is_constructible_impl<_Tp, const _Tp&>
    { };


  template<typename _Tp>
    struct is_copy_constructible
    : public __is_copy_constructible_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_move_constructible_impl;

  template<typename _Tp>
    struct __is_move_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_move_constructible_impl<_Tp, true>
    : public __is_constructible_impl<_Tp, _Tp&&>
    { };


  template<typename _Tp>
    struct is_move_constructible
    : public __is_move_constructible_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, typename... _Args>
    using __is_nothrow_constructible_impl
      = __bool_constant<__is_nothrow_constructible(_Tp, _Args...)>;


  template<typename _Tp, typename... _Args>
    struct is_nothrow_constructible
    : public __is_nothrow_constructible_impl<_Tp, _Args...>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_nothrow_default_constructible
    : public __bool_constant<__is_nothrow_constructible(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_nothrow_copy_constructible_impl;

  template<typename _Tp>
    struct __is_nothrow_copy_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_nothrow_copy_constructible_impl<_Tp, true>
    : public __is_nothrow_constructible_impl<_Tp, const _Tp&>
    { };


  template<typename _Tp>
    struct is_nothrow_copy_constructible
    : public __is_nothrow_copy_constructible_impl<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_nothrow_move_constructible_impl;

  template<typename _Tp>
    struct __is_nothrow_move_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_nothrow_move_constructible_impl<_Tp, true>
    : public __is_nothrow_constructible_impl<_Tp, _Tp&&>
    { };


  template<typename _Tp>
    struct is_nothrow_move_constructible
    : public __is_nothrow_move_constructible_impl<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp, typename _Up>
    struct is_assignable
    : public __bool_constant<__is_assignable(_Tp, _Up)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_copy_assignable_impl;

  template<typename _Tp>
    struct __is_copy_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_copy_assignable_impl<_Tp, true>
    : public __bool_constant<__is_assignable(_Tp&, const _Tp&)>
    { };


  template<typename _Tp>
    struct is_copy_assignable
    : public __is_copy_assignable_impl<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_move_assignable_impl;

  template<typename _Tp>
    struct __is_move_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_move_assignable_impl<_Tp, true>
    : public __bool_constant<__is_assignable(_Tp&, _Tp&&)>
    { };


  template<typename _Tp>
    struct is_move_assignable
    : public __is_move_assignable_impl<_Tp>::type
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, typename _Up>
    using __is_nothrow_assignable_impl
      = __bool_constant<__is_nothrow_assignable(_Tp, _Up)>;


  template<typename _Tp, typename _Up>
    struct is_nothrow_assignable
    : public __is_nothrow_assignable_impl<_Tp, _Up>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_nt_copy_assignable_impl;

  template<typename _Tp>
    struct __is_nt_copy_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_nt_copy_assignable_impl<_Tp, true>
    : public __is_nothrow_assignable_impl<_Tp&, const _Tp&>
    { };


  template<typename _Tp>
    struct is_nothrow_copy_assignable
    : public __is_nt_copy_assignable_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_nt_move_assignable_impl;

  template<typename _Tp>
    struct __is_nt_move_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_nt_move_assignable_impl<_Tp, true>
    : public __is_nothrow_assignable_impl<_Tp&, _Tp&&>
    { };


  template<typename _Tp>
    struct is_nothrow_move_assignable
    : public __is_nt_move_assignable_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp, typename... _Args>
    struct is_trivially_constructible
    : public __bool_constant<__is_trivially_constructible(_Tp, _Args...)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_trivially_default_constructible
    : public __bool_constant<__is_trivially_constructible(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  struct __do_is_implicitly_default_constructible_impl
  {
    template <typename _Tp>
    static void __helper(const _Tp&);

    template <typename _Tp>
    static true_type __test(const _Tp&,
                            decltype(__helper<const _Tp&>({}))* = 0);

    static false_type __test(...);
  };

  template<typename _Tp>
    struct __is_implicitly_default_constructible_impl
    : public __do_is_implicitly_default_constructible_impl
    {
      typedef decltype(__test(declval<_Tp>())) type;
    };

  template<typename _Tp>
    struct __is_implicitly_default_constructible_safe
    : public __is_implicitly_default_constructible_impl<_Tp>::type
    { };

  template <typename _Tp>
    struct __is_implicitly_default_constructible
    : public __and_<__is_constructible_impl<_Tp>,
      __is_implicitly_default_constructible_safe<_Tp>>
    { };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_trivially_copy_constructible_impl;

  template<typename _Tp>
    struct __is_trivially_copy_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_trivially_copy_constructible_impl<_Tp, true>
    : public __and_<__is_copy_constructible_impl<_Tp>,
      integral_constant<bool,
   __is_trivially_constructible(_Tp, const _Tp&)>>
    { };


  template<typename _Tp>
    struct is_trivially_copy_constructible
    : public __is_trivially_copy_constructible_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_trivially_move_constructible_impl;

  template<typename _Tp>
    struct __is_trivially_move_constructible_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_trivially_move_constructible_impl<_Tp, true>
    : public __and_<__is_move_constructible_impl<_Tp>,
      integral_constant<bool,
   __is_trivially_constructible(_Tp, _Tp&&)>>
    { };


  template<typename _Tp>
    struct is_trivially_move_constructible
    : public __is_trivially_move_constructible_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp, typename _Up>
    struct is_trivially_assignable
    : public __bool_constant<__is_trivially_assignable(_Tp, _Up)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_trivially_copy_assignable_impl;

  template<typename _Tp>
    struct __is_trivially_copy_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_trivially_copy_assignable_impl<_Tp, true>
    : public __bool_constant<__is_trivially_assignable(_Tp&, const _Tp&)>
    { };


  template<typename _Tp>
    struct is_trivially_copy_assignable
    : public __is_trivially_copy_assignable_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __is_trivially_move_assignable_impl;

  template<typename _Tp>
    struct __is_trivially_move_assignable_impl<_Tp, false>
    : public false_type { };

  template<typename _Tp>
    struct __is_trivially_move_assignable_impl<_Tp, true>
    : public __bool_constant<__is_trivially_assignable(_Tp&, _Tp&&)>
    { };


  template<typename _Tp>
    struct is_trivially_move_assignable
    : public __is_trivially_move_assignable_impl<_Tp>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename _Tp>
    struct is_trivially_destructible
    : public __and_<__is_destructible_safe<_Tp>,
      __bool_constant<__has_trivial_destructor(_Tp)>>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };



  template<typename _Tp>
    struct has_virtual_destructor
    : public integral_constant<bool, __has_virtual_destructor(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };





  template<typename _Tp>
    struct alignment_of
    : public integral_constant<std::size_t, alignof(_Tp)>
    {
      static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
 "template argument must be a complete class or an unbounded array");
    };


  template<typename>
    struct rank
    : public integral_constant<std::size_t, 0> { };

  template<typename _Tp, std::size_t _Size>
    struct rank<_Tp[_Size]>
    : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };

  template<typename _Tp>
    struct rank<_Tp[]>
    : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };


  template<typename, unsigned _Uint>
    struct extent
    : public integral_constant<std::size_t, 0> { };

  template<typename _Tp, unsigned _Uint, std::size_t _Size>
    struct extent<_Tp[_Size], _Uint>
    : public integral_constant<std::size_t,
          _Uint == 0 ? _Size : extent<_Tp,
          _Uint - 1>::value>
    { };

  template<typename _Tp, unsigned _Uint>
    struct extent<_Tp[], _Uint>
    : public integral_constant<std::size_t,
          _Uint == 0 ? 0 : extent<_Tp,
             _Uint - 1>::value>
    { };





  template<typename _Tp, typename _Up>
    struct is_same

    : public integral_constant<bool, __is_same(_Tp, _Up)>



    { };
# 1370 "/usr/include/c++/11/type_traits" 3
  template<typename _Base, typename _Derived>
    struct is_base_of
    : public integral_constant<bool, __is_base_of(_Base, _Derived)>
    { };

  template<typename _From, typename _To,
           bool = __or_<is_void<_From>, is_function<_To>,
                        is_array<_To>>::value>
    struct __is_convertible_helper
    {
      typedef typename is_void<_To>::type type;
    };

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
  template<typename _From, typename _To>
    class __is_convertible_helper<_From, _To, false>
    {
      template<typename _To1>
 static void __test_aux(_To1) noexcept;

      template<typename _From1, typename _To1,
        typename = decltype(__test_aux<_To1>(std::declval<_From1>()))>
 static true_type
 __test(int);

      template<typename, typename>
 static false_type
 __test(...);

    public:
      typedef decltype(__test<_From, _To>(0)) type;
    };
#pragma GCC diagnostic pop


  template<typename _From, typename _To>
    struct is_convertible
    : public __is_convertible_helper<_From, _To>::type
    { };


  template<typename _ToElementType, typename _FromElementType>
    using __is_array_convertible
      = is_convertible<_FromElementType(*)[], _ToElementType(*)[]>;

  template<typename _From, typename _To,
           bool = __or_<is_void<_From>, is_function<_To>,
                        is_array<_To>>::value>
    struct __is_nt_convertible_helper
    : is_void<_To>
    { };

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
  template<typename _From, typename _To>
    class __is_nt_convertible_helper<_From, _To, false>
    {
      template<typename _To1>
 static void __test_aux(_To1) noexcept;

      template<typename _From1, typename _To1>
 static
 __bool_constant<noexcept(__test_aux<_To1>(std::declval<_From1>()))>
 __test(int);

      template<typename, typename>
 static false_type
 __test(...);

    public:
      using type = decltype(__test<_From, _To>(0));
    };
#pragma GCC diagnostic pop


  template<typename _From, typename _To>
    struct __is_nothrow_convertible
    : public __is_nt_convertible_helper<_From, _To>::type
    { };
# 1468 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct remove_const
    { typedef _Tp type; };

  template<typename _Tp>
    struct remove_const<_Tp const>
    { typedef _Tp type; };


  template<typename _Tp>
    struct remove_volatile
    { typedef _Tp type; };

  template<typename _Tp>
    struct remove_volatile<_Tp volatile>
    { typedef _Tp type; };


  template<typename _Tp>
    struct remove_cv
    { using type = _Tp; };

  template<typename _Tp>
    struct remove_cv<const _Tp>
    { using type = _Tp; };

  template<typename _Tp>
    struct remove_cv<volatile _Tp>
    { using type = _Tp; };

  template<typename _Tp>
    struct remove_cv<const volatile _Tp>
    { using type = _Tp; };


  template<typename _Tp>
    struct add_const
    { typedef _Tp const type; };


  template<typename _Tp>
    struct add_volatile
    { typedef _Tp volatile type; };


  template<typename _Tp>
    struct add_cv
    {
      typedef typename
      add_const<typename add_volatile<_Tp>::type>::type type;
    };
# 1552 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct remove_reference
    { typedef _Tp type; };

  template<typename _Tp>
    struct remove_reference<_Tp&>
    { typedef _Tp type; };

  template<typename _Tp>
    struct remove_reference<_Tp&&>
    { typedef _Tp type; };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __add_lvalue_reference_helper
    { typedef _Tp type; };

  template<typename _Tp>
    struct __add_lvalue_reference_helper<_Tp, true>
    { typedef _Tp& type; };


  template<typename _Tp>
    struct add_lvalue_reference
    : public __add_lvalue_reference_helper<_Tp>
    { };

  template<typename _Tp, bool = __is_referenceable<_Tp>::value>
    struct __add_rvalue_reference_helper
    { typedef _Tp type; };

  template<typename _Tp>
    struct __add_rvalue_reference_helper<_Tp, true>
    { typedef _Tp&& type; };


  template<typename _Tp>
    struct add_rvalue_reference
    : public __add_rvalue_reference_helper<_Tp>
    { };
# 1609 "/usr/include/c++/11/type_traits" 3
  template<typename _Unqualified, bool _IsConst, bool _IsVol>
    struct __cv_selector;

  template<typename _Unqualified>
    struct __cv_selector<_Unqualified, false, false>
    { typedef _Unqualified __type; };

  template<typename _Unqualified>
    struct __cv_selector<_Unqualified, false, true>
    { typedef volatile _Unqualified __type; };

  template<typename _Unqualified>
    struct __cv_selector<_Unqualified, true, false>
    { typedef const _Unqualified __type; };

  template<typename _Unqualified>
    struct __cv_selector<_Unqualified, true, true>
    { typedef const volatile _Unqualified __type; };

  template<typename _Qualified, typename _Unqualified,
    bool _IsConst = is_const<_Qualified>::value,
    bool _IsVol = is_volatile<_Qualified>::value>
    class __match_cv_qualifiers
    {
      typedef __cv_selector<_Unqualified, _IsConst, _IsVol> __match;

    public:
      typedef typename __match::__type __type;
    };


  template<typename _Tp>
    struct __make_unsigned
    { typedef _Tp __type; };

  template<>
    struct __make_unsigned<char>
    { typedef unsigned char __type; };

  template<>
    struct __make_unsigned<signed char>
    { typedef unsigned char __type; };

  template<>
    struct __make_unsigned<short>
    { typedef unsigned short __type; };

  template<>
    struct __make_unsigned<int>
    { typedef unsigned int __type; };

  template<>
    struct __make_unsigned<long>
    { typedef unsigned long __type; };

  template<>
    struct __make_unsigned<long long>
    { typedef unsigned long long __type; };
# 1690 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp,
    bool _IsInt = is_integral<_Tp>::value,
    bool _IsEnum = is_enum<_Tp>::value>
    class __make_unsigned_selector;

  template<typename _Tp>
    class __make_unsigned_selector<_Tp, true, false>
    {
      using __unsigned_type
 = typename __make_unsigned<__remove_cv_t<_Tp>>::__type;

    public:
      using __type
 = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
    };

  class __make_unsigned_selector_base
  {
  protected:
    template<typename...> struct _List { };

    template<typename _Tp, typename... _Up>
      struct _List<_Tp, _Up...> : _List<_Up...>
      { static constexpr size_t __size = sizeof(_Tp); };

    template<size_t _Sz, typename _Tp, bool = (_Sz <= _Tp::__size)>
      struct __select;

    template<size_t _Sz, typename _Uint, typename... _UInts>
      struct __select<_Sz, _List<_Uint, _UInts...>, true>
      { using __type = _Uint; };

    template<size_t _Sz, typename _Uint, typename... _UInts>
      struct __select<_Sz, _List<_Uint, _UInts...>, false>
      : __select<_Sz, _List<_UInts...>>
      { };
  };


  template<typename _Tp>
    class __make_unsigned_selector<_Tp, false, true>
    : __make_unsigned_selector_base
    {

      using _UInts = _List<unsigned char, unsigned short, unsigned int,
      unsigned long, unsigned long long>;

      using __unsigned_type = typename __select<sizeof(_Tp), _UInts>::__type;

    public:
      using __type
 = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
    };






  template<>
    struct __make_unsigned<wchar_t>
    {
      using __type
 = typename __make_unsigned_selector<wchar_t, false, true>::__type;
    };
# 1766 "/usr/include/c++/11/type_traits" 3
  template<>
    struct __make_unsigned<char16_t>
    {
      using __type
 = typename __make_unsigned_selector<char16_t, false, true>::__type;
    };

  template<>
    struct __make_unsigned<char32_t>
    {
      using __type
 = typename __make_unsigned_selector<char32_t, false, true>::__type;
    };





  template<typename _Tp>
    struct make_unsigned
    { typedef typename __make_unsigned_selector<_Tp>::__type type; };


  template<>
    struct make_unsigned<bool>;



  template<typename _Tp>
    struct __make_signed
    { typedef _Tp __type; };

  template<>
    struct __make_signed<char>
    { typedef signed char __type; };

  template<>
    struct __make_signed<unsigned char>
    { typedef signed char __type; };

  template<>
    struct __make_signed<unsigned short>
    { typedef signed short __type; };

  template<>
    struct __make_signed<unsigned int>
    { typedef signed int __type; };

  template<>
    struct __make_signed<unsigned long>
    { typedef signed long __type; };

  template<>
    struct __make_signed<unsigned long long>
    { typedef signed long long __type; };
# 1844 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp,
    bool _IsInt = is_integral<_Tp>::value,
    bool _IsEnum = is_enum<_Tp>::value>
    class __make_signed_selector;

  template<typename _Tp>
    class __make_signed_selector<_Tp, true, false>
    {
      using __signed_type
 = typename __make_signed<__remove_cv_t<_Tp>>::__type;

    public:
      using __type
 = typename __match_cv_qualifiers<_Tp, __signed_type>::__type;
    };


  template<typename _Tp>
    class __make_signed_selector<_Tp, false, true>
    {
      typedef typename __make_unsigned_selector<_Tp>::__type __unsigned_type;

    public:
      typedef typename __make_signed_selector<__unsigned_type>::__type __type;
    };






  template<>
    struct __make_signed<wchar_t>
    {
      using __type
 = typename __make_signed_selector<wchar_t, false, true>::__type;
    };
# 1892 "/usr/include/c++/11/type_traits" 3
  template<>
    struct __make_signed<char16_t>
    {
      using __type
 = typename __make_signed_selector<char16_t, false, true>::__type;
    };

  template<>
    struct __make_signed<char32_t>
    {
      using __type
 = typename __make_signed_selector<char32_t, false, true>::__type;
    };





  template<typename _Tp>
    struct make_signed
    { typedef typename __make_signed_selector<_Tp>::__type type; };


  template<>
    struct make_signed<bool>;
# 1931 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp>
    struct remove_extent
    { typedef _Tp type; };

  template<typename _Tp, std::size_t _Size>
    struct remove_extent<_Tp[_Size]>
    { typedef _Tp type; };

  template<typename _Tp>
    struct remove_extent<_Tp[]>
    { typedef _Tp type; };


  template<typename _Tp>
    struct remove_all_extents
    { typedef _Tp type; };

  template<typename _Tp, std::size_t _Size>
    struct remove_all_extents<_Tp[_Size]>
    { typedef typename remove_all_extents<_Tp>::type type; };

  template<typename _Tp>
    struct remove_all_extents<_Tp[]>
    { typedef typename remove_all_extents<_Tp>::type type; };
# 1968 "/usr/include/c++/11/type_traits" 3
  template<typename _Tp, typename>
    struct __remove_pointer_helper
    { typedef _Tp type; };

  template<typename _Tp, typename _Up>
    struct __remove_pointer_helper<_Tp, _Up*>
    { typedef _Up type; };


  template<typename _Tp>
    struct remove_pointer
    : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>>
    { };


  template<typename _Tp, bool = __or_<__is_referenceable<_Tp>,
          is_void<_Tp>>::value>
    struct __add_pointer_helper
    { typedef _Tp type; };

  template<typename _Tp>
    struct __add_pointer_helper<_Tp, true>
    { typedef typename remove_reference<_Tp>::type* type; };

  template<typename _Tp>
    struct add_pointer
    : public __add_pointer_helper<_Tp>
    { };
# 2007 "/usr/include/c++/11/type_traits" 3
  template<std::size_t _Len>
    struct __aligned_storage_msa
    {
      union __type
      {
 unsigned char __data[_Len];
 struct __attribute__((__aligned__)) { } __align;
      };
    };
# 2027 "/usr/include/c++/11/type_traits" 3
  template<std::size_t _Len, std::size_t _Align =
    __alignof__(typename __aligned_storage_msa<_Len>::__type)>
    struct aligned_storage
    {
      union type
      {
 unsigned char __data[_Len];
 struct __attribute__((__aligned__((_Align)))) { } __align;
      };
    };

  template <typename... _Types>
    struct __strictest_alignment
    {
      static const size_t _S_alignment = 0;
      static const size_t _S_size = 0;
    };

  template <typename _Tp, typename... _Types>
    struct __strictest_alignment<_Tp, _Types...>
    {
      static const size_t _S_alignment =
        alignof(_Tp) > __strictest_alignment<_Types...>::_S_alignment
 ? alignof(_Tp) : __strictest_alignment<_Types...>::_S_alignment;
      static const size_t _S_size =
        sizeof(_Tp) > __strictest_alignment<_Types...>::_S_size
 ? sizeof(_Tp) : __strictest_alignment<_Types...>::_S_size;
    };
# 2066 "/usr/include/c++/11/type_traits" 3
  template <size_t _Len, typename... _Types>
    struct aligned_union
    {
    private:
      static_assert(sizeof...(_Types) != 0, "At least one type is required");

      using __strictest = __strictest_alignment<_Types...>;
      static const size_t _S_len = _Len > __strictest::_S_size
 ? _Len : __strictest::_S_size;
    public:

      static const size_t alignment_value = __strictest::_S_alignment;

      typedef typename aligned_storage<_S_len, alignment_value>::type type;
    };

  template <size_t _Len, typename... _Types>
    const size_t aligned_union<_Len, _Types...>::alignment_value;



  template<typename _Up,
    bool _IsArray = is_array<_Up>::value,
    bool _IsFunction = is_function<_Up>::value>
    struct __decay_selector;


  template<typename _Up>
    struct __decay_selector<_Up, false, false>
    { typedef __remove_cv_t<_Up> __type; };

  template<typename _Up>
    struct __decay_selector<_Up, true, false>
    { typedef typename remove_extent<_Up>::type* __type; };

  template<typename _Up>
    struct __decay_selector<_Up, false, true>
    { typedef typename add_pointer<_Up>::type __type; };


  template<typename _Tp>
    class decay
    {
      typedef typename remove_reference<_Tp>::type __remove_type;

    public:
      typedef typename __decay_selector<__remove_type>::__type type;
    };


  template<typename _Tp>
    using __decay_t = typename decay<_Tp>::type;

  template<typename _Tp>
    class reference_wrapper;


  template<typename _Tp>
    struct __strip_reference_wrapper
    {
      typedef _Tp __type;
    };

  template<typename _Tp>
    struct __strip_reference_wrapper<reference_wrapper<_Tp> >
    {
      typedef _Tp& __type;
    };

  template<typename _Tp>
    using __decay_and_strip = __strip_reference_wrapper<__decay_t<_Tp>>;




  template<bool, typename _Tp = void>
    struct enable_if
    { };


  template<typename _Tp>
    struct enable_if<true, _Tp>
    { typedef _Tp type; };


  template<bool _Cond, typename _Tp = void>
    using __enable_if_t = typename enable_if<_Cond, _Tp>::type;

  template<typename... _Cond>
    using _Require = __enable_if_t<__and_<_Cond...>::value>;



  template<bool _Cond, typename _Iftrue, typename _Iffalse>
    struct conditional
    { typedef _Iftrue type; };


  template<typename _Iftrue, typename _Iffalse>
    struct conditional<false, _Iftrue, _Iffalse>
    { typedef _Iffalse type; };


  template<typename _Tp>
    using __remove_cvref_t
     = typename remove_cv<typename remove_reference<_Tp>::type>::type;


  template<typename... _Tp>
    struct common_type;



  struct __do_common_type_impl
  {
    template<typename _Tp, typename _Up>
      using __cond_t
 = decltype(true ? std::declval<_Tp>() : std::declval<_Up>());



    template<typename _Tp, typename _Up>
      static __success_type<__decay_t<__cond_t<_Tp, _Up>>>
      _S_test(int);
# 2199 "/usr/include/c++/11/type_traits" 3
    template<typename, typename>
      static __failure_type
      _S_test_2(...);

    template<typename _Tp, typename _Up>
      static decltype(_S_test_2<_Tp, _Up>(0))
      _S_test(...);
  };


  template<>
    struct common_type<>
    { };


  template<typename _Tp0>
    struct common_type<_Tp0>
    : public common_type<_Tp0, _Tp0>
    { };


  template<typename _Tp1, typename _Tp2,
    typename _Dp1 = __decay_t<_Tp1>, typename _Dp2 = __decay_t<_Tp2>>
    struct __common_type_impl
    {


      using type = common_type<_Dp1, _Dp2>;
    };

  template<typename _Tp1, typename _Tp2>
    struct __common_type_impl<_Tp1, _Tp2, _Tp1, _Tp2>
    : private __do_common_type_impl
    {


      using type = decltype(_S_test<_Tp1, _Tp2>(0));
    };


  template<typename _Tp1, typename _Tp2>
    struct common_type<_Tp1, _Tp2>
    : public __common_type_impl<_Tp1, _Tp2>::type
    { };

  template<typename...>
    struct __common_type_pack
    { };

  template<typename, typename, typename = void>
    struct __common_type_fold;


  template<typename _Tp1, typename _Tp2, typename... _Rp>
    struct common_type<_Tp1, _Tp2, _Rp...>
    : public __common_type_fold<common_type<_Tp1, _Tp2>,
    __common_type_pack<_Rp...>>
    { };




  template<typename _CTp, typename... _Rp>
    struct __common_type_fold<_CTp, __common_type_pack<_Rp...>,
         __void_t<typename _CTp::type>>
    : public common_type<typename _CTp::type, _Rp...>
    { };


  template<typename _CTp, typename _Rp>
    struct __common_type_fold<_CTp, _Rp, void>
    { };

  template<typename _Tp, bool = is_enum<_Tp>::value>
    struct __underlying_type_impl
    {
      using type = __underlying_type(_Tp);
    };

  template<typename _Tp>
    struct __underlying_type_impl<_Tp, false>
    { };


  template<typename _Tp>
    struct underlying_type
    : public __underlying_type_impl<_Tp>
    { };

  template<typename _Tp>
    struct __declval_protector
    {
      static const bool __stop = false;
    };

  template<typename _Tp>
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
    {
      static_assert(__declval_protector<_Tp>::__stop,
      "declval() must not be used!");
      return __declval<_Tp>(0);
    }


  template<typename _Signature>
    struct result_of;





  struct __invoke_memfun_ref { };
  struct __invoke_memfun_deref { };
  struct __invoke_memobj_ref { };
  struct __invoke_memobj_deref { };
  struct __invoke_other { };


  template<typename _Tp, typename _Tag>
    struct __result_of_success : __success_type<_Tp>
    { using __invoke_type = _Tag; };


  struct __result_of_memfun_ref_impl
  {
    template<typename _Fp, typename _Tp1, typename... _Args>
      static __result_of_success<decltype(
      (std::declval<_Tp1>().*std::declval<_Fp>())(std::declval<_Args>()...)
      ), __invoke_memfun_ref> _S_test(int);

    template<typename...>
      static __failure_type _S_test(...);
  };

  template<typename _MemPtr, typename _Arg, typename... _Args>
    struct __result_of_memfun_ref
    : private __result_of_memfun_ref_impl
    {
      typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type;
    };


  struct __result_of_memfun_deref_impl
  {
    template<typename _Fp, typename _Tp1, typename... _Args>
      static __result_of_success<decltype(
      ((*std::declval<_Tp1>()).*std::declval<_Fp>())(std::declval<_Args>()...)
      ), __invoke_memfun_deref> _S_test(int);

    template<typename...>
      static __failure_type _S_test(...);
  };

  template<typename _MemPtr, typename _Arg, typename... _Args>
    struct __result_of_memfun_deref
    : private __result_of_memfun_deref_impl
    {
      typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type;
    };


  struct __result_of_memobj_ref_impl
  {
    template<typename _Fp, typename _Tp1>
      static __result_of_success<decltype(
      std::declval<_Tp1>().*std::declval<_Fp>()
      ), __invoke_memobj_ref> _S_test(int);

    template<typename, typename>
      static __failure_type _S_test(...);
  };

  template<typename _MemPtr, typename _Arg>
    struct __result_of_memobj_ref
    : private __result_of_memobj_ref_impl
    {
      typedef decltype(_S_test<_MemPtr, _Arg>(0)) type;
    };


  struct __result_of_memobj_deref_impl
  {
    template<typename _Fp, typename _Tp1>
      static __result_of_success<decltype(
      (*std::declval<_Tp1>()).*std::declval<_Fp>()
      ), __invoke_memobj_deref> _S_test(int);

    template<typename, typename>
      static __failure_type _S_test(...);
  };

  template<typename _MemPtr, typename _Arg>
    struct __result_of_memobj_deref
    : private __result_of_memobj_deref_impl
    {
      typedef decltype(_S_test<_MemPtr, _Arg>(0)) type;
    };

  template<typename _MemPtr, typename _Arg>
    struct __result_of_memobj;

  template<typename _Res, typename _Class, typename _Arg>
    struct __result_of_memobj<_Res _Class::*, _Arg>
    {
      typedef __remove_cvref_t<_Arg> _Argval;
      typedef _Res _Class::* _MemPtr;
      typedef typename conditional<__or_<is_same<_Argval, _Class>,
        is_base_of<_Class, _Argval>>::value,
        __result_of_memobj_ref<_MemPtr, _Arg>,
        __result_of_memobj_deref<_MemPtr, _Arg>
      >::type::type type;
    };

  template<typename _MemPtr, typename _Arg, typename... _Args>
    struct __result_of_memfun;

  template<typename _Res, typename _Class, typename _Arg, typename... _Args>
    struct __result_of_memfun<_Res _Class::*, _Arg, _Args...>
    {
      typedef typename remove_reference<_Arg>::type _Argval;
      typedef _Res _Class::* _MemPtr;
      typedef typename conditional<is_base_of<_Class, _Argval>::value,
        __result_of_memfun_ref<_MemPtr, _Arg, _Args...>,
        __result_of_memfun_deref<_MemPtr, _Arg, _Args...>
      >::type::type type;
    };






  template<typename _Tp, typename _Up = __remove_cvref_t<_Tp>>
    struct __inv_unwrap
    {
      using type = _Tp;
    };

  template<typename _Tp, typename _Up>
    struct __inv_unwrap<_Tp, reference_wrapper<_Up>>
    {
      using type = _Up&;
    };

  template<bool, bool, typename _Functor, typename... _ArgTypes>
    struct __result_of_impl
    {
      typedef __failure_type type;
    };

  template<typename _MemPtr, typename _Arg>
    struct __result_of_impl<true, false, _MemPtr, _Arg>
    : public __result_of_memobj<__decay_t<_MemPtr>,
    typename __inv_unwrap<_Arg>::type>
    { };

  template<typename _MemPtr, typename _Arg, typename... _Args>
    struct __result_of_impl<false, true, _MemPtr, _Arg, _Args...>
    : public __result_of_memfun<__decay_t<_MemPtr>,
    typename __inv_unwrap<_Arg>::type, _Args...>
    { };


  struct __result_of_other_impl
  {
    template<typename _Fn, typename... _Args>
      static __result_of_success<decltype(
      std::declval<_Fn>()(std::declval<_Args>()...)
      ), __invoke_other> _S_test(int);

    template<typename...>
      static __failure_type _S_test(...);
  };

  template<typename _Functor, typename... _ArgTypes>
    struct __result_of_impl<false, false, _Functor, _ArgTypes...>
    : private __result_of_other_impl
    {
      typedef decltype(_S_test<_Functor, _ArgTypes...>(0)) type;
    };


  template<typename _Functor, typename... _ArgTypes>
    struct __invoke_result
    : public __result_of_impl<
        is_member_object_pointer<
          typename remove_reference<_Functor>::type
        >::value,
        is_member_function_pointer<
          typename remove_reference<_Functor>::type
        >::value,
 _Functor, _ArgTypes...
      >::type
    { };

  template<typename _Functor, typename... _ArgTypes>
    struct result_of<_Functor(_ArgTypes...)>
    : public __invoke_result<_Functor, _ArgTypes...>
    { };
# 2540 "/usr/include/c++/11/type_traits" 3
  template<typename _Default, typename _AlwaysVoid,
    template<typename...> class _Op, typename... _Args>
    struct __detector
    {
      using value_t = false_type;
      using type = _Default;
    };


  template<typename _Default, template<typename...> class _Op,
     typename... _Args>
    struct __detector<_Default, __void_t<_Op<_Args...>>, _Op, _Args...>
    {
      using value_t = true_type;
      using type = _Op<_Args...>;
    };


  template<typename _Default, template<typename...> class _Op,
    typename... _Args>
    using __detected_or = __detector<_Default, void, _Op, _Args...>;


  template<typename _Default, template<typename...> class _Op,
    typename... _Args>
    using __detected_or_t
      = typename __detected_or<_Default, _Op, _Args...>::type;
# 2584 "/usr/include/c++/11/type_traits" 3
  template <typename _Tp>
    struct __is_swappable;

  template <typename _Tp>
    struct __is_nothrow_swappable;

  template<typename... _Elements>
    class tuple;

  template<typename>
    struct __is_tuple_like_impl : false_type
    { };

  template<typename... _Tps>
    struct __is_tuple_like_impl<tuple<_Tps...>> : true_type
    { };


  template<typename _Tp>
    struct __is_tuple_like
    : public __is_tuple_like_impl<__remove_cvref_t<_Tp>>::type
    { };

  template<typename _Tp>
   
    inline
    _Require<__not_<__is_tuple_like<_Tp>>,
      is_move_constructible<_Tp>,
      is_move_assignable<_Tp>>
    swap(_Tp&, _Tp&)
    noexcept(__and_<is_nothrow_move_constructible<_Tp>,
             is_nothrow_move_assignable<_Tp>>::value);

  template<typename _Tp, size_t _Nm>
   
    inline
    __enable_if_t<__is_swappable<_Tp>::value>
    swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
    noexcept(__is_nothrow_swappable<_Tp>::value);

  namespace __swappable_details {
    using std::swap;

    struct __do_is_swappable_impl
    {
      template<typename _Tp, typename
               = decltype(swap(std::declval<_Tp&>(), std::declval<_Tp&>()))>
        static true_type __test(int);

      template<typename>
        static false_type __test(...);
    };

    struct __do_is_nothrow_swappable_impl
    {
      template<typename _Tp>
        static __bool_constant<
          noexcept(swap(std::declval<_Tp&>(), std::declval<_Tp&>()))
        > __test(int);

      template<typename>
        static false_type __test(...);
    };

  }

  template<typename _Tp>
    struct __is_swappable_impl
    : public __swappable_details::__do_is_swappable_impl
    {
      typedef decltype(__test<_Tp>(0)) type;
    };

  template<typename _Tp>
    struct __is_nothrow_swappable_impl
    : public __swappable_details::__do_is_nothrow_swappable_impl
    {
      typedef decltype(__test<_Tp>(0)) type;
    };

  template<typename _Tp>
    struct __is_swappable
    : public __is_swappable_impl<_Tp>::type
    { };

  template<typename _Tp>
    struct __is_nothrow_swappable
    : public __is_nothrow_swappable_impl<_Tp>::type
    { };
# 2807 "/usr/include/c++/11/type_traits" 3
  template<typename _Result, typename _Ret,
    bool = is_void<_Ret>::value, typename = void>
    struct __is_invocable_impl : false_type { };


  template<typename _Result, typename _Ret>
    struct __is_invocable_impl<_Result, _Ret,
                                true,
          __void_t<typename _Result::type>>
    : true_type
    { };

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"

  template<typename _Result, typename _Ret>
    struct __is_invocable_impl<_Result, _Ret,
                                false,
          __void_t<typename _Result::type>>
    {
    private:


      static typename _Result::type _S_get();

      template<typename _Tp>
 static void _S_conv(_Tp);


      template<typename _Tp, typename = decltype(_S_conv<_Tp>(_S_get()))>
 static true_type
 _S_test(int);

      template<typename _Tp>
 static false_type
 _S_test(...);

    public:
      using type = decltype(_S_test<_Ret>(1));
    };
#pragma GCC diagnostic pop

  template<typename _Fn, typename... _ArgTypes>
    struct __is_invocable
    : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type
    { };

  template<typename _Fn, typename _Tp, typename... _Args>
    constexpr bool __call_is_nt(__invoke_memfun_ref)
    {
      using _Up = typename __inv_unwrap<_Tp>::type;
      return noexcept((std::declval<_Up>().*std::declval<_Fn>())(
     std::declval<_Args>()...));
    }

  template<typename _Fn, typename _Tp, typename... _Args>
    constexpr bool __call_is_nt(__invoke_memfun_deref)
    {
      return noexcept(((*std::declval<_Tp>()).*std::declval<_Fn>())(
     std::declval<_Args>()...));
    }

  template<typename _Fn, typename _Tp>
    constexpr bool __call_is_nt(__invoke_memobj_ref)
    {
      using _Up = typename __inv_unwrap<_Tp>::type;
      return noexcept(std::declval<_Up>().*std::declval<_Fn>());
    }

  template<typename _Fn, typename _Tp>
    constexpr bool __call_is_nt(__invoke_memobj_deref)
    {
      return noexcept((*std::declval<_Tp>()).*std::declval<_Fn>());
    }

  template<typename _Fn, typename... _Args>
    constexpr bool __call_is_nt(__invoke_other)
    {
      return noexcept(std::declval<_Fn>()(std::declval<_Args>()...));
    }

  template<typename _Result, typename _Fn, typename... _Args>
    struct __call_is_nothrow
    : __bool_constant<
 std::__call_is_nt<_Fn, _Args...>(typename _Result::__invoke_type{})
      >
    { };

  template<typename _Fn, typename... _Args>
    using __call_is_nothrow_
      = __call_is_nothrow<__invoke_result<_Fn, _Args...>, _Fn, _Args...>;


  template<typename _Fn, typename... _Args>
    struct __is_nothrow_invocable
    : __and_<__is_invocable<_Fn, _Args...>,
             __call_is_nothrow_<_Fn, _Args...>>::type
    { };

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
  struct __nonesuchbase {};
  struct __nonesuch : private __nonesuchbase {
    ~__nonesuch() = delete;
    __nonesuch(__nonesuch const&) = delete;
    void operator=(__nonesuch const&) = delete;
  };
#pragma GCC diagnostic pop
# 3451 "/usr/include/c++/11/type_traits" 3

}
# 58 "/usr/include/c++/11/bits/move.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{

# 74 "/usr/include/c++/11/bits/move.h" 3
  template<typename _Tp>
    constexpr _Tp&&
    forward(typename std::remove_reference<_Tp>::type& __t) noexcept
    { return static_cast<_Tp&&>(__t); }







  template<typename _Tp>
    constexpr _Tp&&
    forward(typename std::remove_reference<_Tp>::type&& __t) noexcept
    {
      static_assert(!std::is_lvalue_reference<_Tp>::value, "template argument"
      " substituting _Tp is an lvalue reference type");
      return static_cast<_Tp&&>(__t);
    }






  template<typename _Tp>
    constexpr typename std::remove_reference<_Tp>::type&&
    move(_Tp&& __t) noexcept
    { return static_cast<typename std::remove_reference<_Tp>::type&&>(__t); }


  template<typename _Tp>
    struct __move_if_noexcept_cond
    : public __and_<__not_<is_nothrow_move_constructible<_Tp>>,
                    is_copy_constructible<_Tp>>::type { };
# 118 "/usr/include/c++/11/bits/move.h" 3
  template<typename _Tp>
    constexpr typename
    conditional<__move_if_noexcept_cond<_Tp>::value, const _Tp&, _Tp&&>::type
    move_if_noexcept(_Tp& __x) noexcept
    { return std::move(__x); }
# 138 "/usr/include/c++/11/bits/move.h" 3
  template<typename _Tp>
    inline _Tp*
    addressof(_Tp& __r) noexcept
    { return std::__addressof(__r); }



  template<typename _Tp>
    const _Tp* addressof(const _Tp&&) = delete;


  template <typename _Tp, typename _Up = _Tp>
   
    inline _Tp
    __exchange(_Tp& __obj, _Up&& __new_val)
    {
      _Tp __old_val = std::move(__obj);
      __obj = std::forward<_Up>(__new_val);
      return __old_val;
    }
# 181 "/usr/include/c++/11/bits/move.h" 3
  template<typename _Tp>
   
    inline

    typename enable_if<__and_<__not_<__is_tuple_like<_Tp>>,
         is_move_constructible<_Tp>,
         is_move_assignable<_Tp>>::value>::type



    swap(_Tp& __a, _Tp& __b)
    noexcept(__and_<is_nothrow_move_constructible<_Tp>, is_nothrow_move_assignable<_Tp>>::value)

    {




      _Tp __tmp = std::move(__a);
      __a = std::move(__b);
      __b = std::move(__tmp);
    }




  template<typename _Tp, size_t _Nm>
   
    inline

    typename enable_if<__is_swappable<_Tp>::value>::type



    swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
    noexcept(__is_nothrow_swappable<_Tp>::value)
    {
      for (size_t __n = 0; __n < _Nm; ++__n)
 swap(__a[__n], __b[__n]);
    }



}
# 60 "/usr/include/c++/11/bits/stl_pair.h" 2 3
# 69 "/usr/include/c++/11/bits/stl_pair.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 80 "/usr/include/c++/11/bits/stl_pair.h" 3
  struct piecewise_construct_t { explicit piecewise_construct_t() = default; };


  constexpr piecewise_construct_t piecewise_construct =
    piecewise_construct_t();




  template<typename...>
    class tuple;

  template<size_t...>
    struct _Index_tuple;






  template <bool, typename _T1, typename _T2>
    struct _PCC
    {
      template <typename _U1, typename _U2>
      static constexpr bool _ConstructiblePair()
      {
 return __and_<is_constructible<_T1, const _U1&>,
        is_constructible<_T2, const _U2&>>::value;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _ImplicitlyConvertiblePair()
      {
 return __and_<is_convertible<const _U1&, _T1>,
        is_convertible<const _U2&, _T2>>::value;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _MoveConstructiblePair()
      {
 return __and_<is_constructible<_T1, _U1&&>,
        is_constructible<_T2, _U2&&>>::value;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _ImplicitlyMoveConvertiblePair()
      {
 return __and_<is_convertible<_U1&&, _T1>,
        is_convertible<_U2&&, _T2>>::value;
      }

      template <bool __implicit, typename _U1, typename _U2>
      static constexpr bool _CopyMovePair()
      {
 using __do_converts = __and_<is_convertible<const _U1&, _T1>,
      is_convertible<_U2&&, _T2>>;
 using __converts = typename conditional<__implicit,
           __do_converts,
           __not_<__do_converts>>::type;
 return __and_<is_constructible<_T1, const _U1&>,
        is_constructible<_T2, _U2&&>,
        __converts
        >::value;
      }

      template <bool __implicit, typename _U1, typename _U2>
      static constexpr bool _MoveCopyPair()
      {
 using __do_converts = __and_<is_convertible<_U1&&, _T1>,
      is_convertible<const _U2&, _T2>>;
 using __converts = typename conditional<__implicit,
           __do_converts,
           __not_<__do_converts>>::type;
 return __and_<is_constructible<_T1, _U1&&>,
        is_constructible<_T2, const _U2&&>,
        __converts
        >::value;
      }
  };

  template <typename _T1, typename _T2>
    struct _PCC<false, _T1, _T2>
    {
      template <typename _U1, typename _U2>
      static constexpr bool _ConstructiblePair()
      {
 return false;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _ImplicitlyConvertiblePair()
      {
 return false;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _MoveConstructiblePair()
      {
 return false;
      }

      template <typename _U1, typename _U2>
      static constexpr bool _ImplicitlyMoveConvertiblePair()
      {
 return false;
      }
  };


  template<typename _U1, typename _U2> class __pair_base
  {

    template<typename _T1, typename _T2> friend struct pair;
    __pair_base() = default;
    ~__pair_base() = default;
    __pair_base(const __pair_base&) = default;
    __pair_base& operator=(const __pair_base&) = delete;

  };
# 210 "/usr/include/c++/11/bits/stl_pair.h" 3
  template<typename _T1, typename _T2>
    struct pair
    : private __pair_base<_T1, _T2>
    {
      typedef _T1 first_type;
      typedef _T2 second_type;

      _T1 first;
      _T2 second;






      template <typename _U1 = _T1,
                typename _U2 = _T2,
                typename enable_if<__and_<
                                     __is_implicitly_default_constructible<_U1>,
                                     __is_implicitly_default_constructible<_U2>>
                                   ::value, bool>::type = true>

      constexpr pair()
      : first(), second() { }


      template <typename _U1 = _T1,
                typename _U2 = _T2,
                typename enable_if<__and_<
                       is_default_constructible<_U1>,
                       is_default_constructible<_U2>,
                       __not_<
                         __and_<__is_implicitly_default_constructible<_U1>,
                                __is_implicitly_default_constructible<_U2>>>>
                                   ::value, bool>::type = false>
      explicit constexpr pair()
      : first(), second() { }
# 256 "/usr/include/c++/11/bits/stl_pair.h" 3
      using _PCCP = _PCC<true, _T1, _T2>;



      template<typename _U1 = _T1, typename _U2=_T2, typename
        enable_if<_PCCP::template
      _ConstructiblePair<_U1, _U2>()
                  && _PCCP::template
      _ImplicitlyConvertiblePair<_U1, _U2>(),
                         bool>::type=true>
      constexpr pair(const _T1& __a, const _T2& __b)
      : first(__a), second(__b) { }


       template<typename _U1 = _T1, typename _U2=_T2, typename
  enable_if<_PCCP::template
       _ConstructiblePair<_U1, _U2>()
                   && !_PCCP::template
       _ImplicitlyConvertiblePair<_U1, _U2>(),
                         bool>::type=false>
      explicit constexpr pair(const _T1& __a, const _T2& __b)
      : first(__a), second(__b) { }
# 288 "/usr/include/c++/11/bits/stl_pair.h" 3
      template <typename _U1, typename _U2>
        using _PCCFP = _PCC<!is_same<_T1, _U1>::value
       || !is_same<_T2, _U2>::value,
       _T1, _T2>;


      template<typename _U1, typename _U2, typename
        enable_if<_PCCFP<_U1, _U2>::template
      _ConstructiblePair<_U1, _U2>()
                  && _PCCFP<_U1, _U2>::template
      _ImplicitlyConvertiblePair<_U1, _U2>(),
     bool>::type=true>
        constexpr pair(const pair<_U1, _U2>& __p)
        : first(__p.first), second(__p.second) { }

      template<typename _U1, typename _U2, typename
        enable_if<_PCCFP<_U1, _U2>::template
      _ConstructiblePair<_U1, _U2>()
    && !_PCCFP<_U1, _U2>::template
      _ImplicitlyConvertiblePair<_U1, _U2>(),
                         bool>::type=false>
 explicit constexpr pair(const pair<_U1, _U2>& __p)
 : first(__p.first), second(__p.second) { }



      constexpr pair(const pair&) = default;
      constexpr pair(pair&&) = default;


      template<typename _U1, typename
        enable_if<_PCCP::template
      _MoveCopyPair<true, _U1, _T2>(),
                         bool>::type=true>
       constexpr pair(_U1&& __x, const _T2& __y)
       : first(std::forward<_U1>(__x)), second(__y) { }

      template<typename _U1, typename
        enable_if<_PCCP::template
      _MoveCopyPair<false, _U1, _T2>(),
                         bool>::type=false>
       explicit constexpr pair(_U1&& __x, const _T2& __y)
       : first(std::forward<_U1>(__x)), second(__y) { }

      template<typename _U2, typename
        enable_if<_PCCP::template
      _CopyMovePair<true, _T1, _U2>(),
                         bool>::type=true>
       constexpr pair(const _T1& __x, _U2&& __y)
       : first(__x), second(std::forward<_U2>(__y)) { }

      template<typename _U2, typename
        enable_if<_PCCP::template
      _CopyMovePair<false, _T1, _U2>(),
                         bool>::type=false>
       explicit pair(const _T1& __x, _U2&& __y)
       : first(__x), second(std::forward<_U2>(__y)) { }

      template<typename _U1, typename _U2, typename
        enable_if<_PCCP::template
      _MoveConstructiblePair<_U1, _U2>()
     && _PCCP::template
      _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
                         bool>::type=true>
 constexpr pair(_U1&& __x, _U2&& __y)
 : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }

      template<typename _U1, typename _U2, typename
        enable_if<_PCCP::template
      _MoveConstructiblePair<_U1, _U2>()
     && !_PCCP::template
      _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
                         bool>::type=false>
 explicit constexpr pair(_U1&& __x, _U2&& __y)
 : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }


      template<typename _U1, typename _U2, typename
        enable_if<_PCCFP<_U1, _U2>::template
      _MoveConstructiblePair<_U1, _U2>()
     && _PCCFP<_U1, _U2>::template
      _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
                         bool>::type=true>
 constexpr pair(pair<_U1, _U2>&& __p)
 : first(std::forward<_U1>(__p.first)),
   second(std::forward<_U2>(__p.second)) { }

      template<typename _U1, typename _U2, typename
        enable_if<_PCCFP<_U1, _U2>::template
      _MoveConstructiblePair<_U1, _U2>()
     && !_PCCFP<_U1, _U2>::template
      _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
                         bool>::type=false>
 explicit constexpr pair(pair<_U1, _U2>&& __p)
 : first(std::forward<_U1>(__p.first)),
   second(std::forward<_U2>(__p.second)) { }

      template<typename... _Args1, typename... _Args2>

        pair(piecewise_construct_t, tuple<_Args1...>, tuple<_Args2...>);

      pair&
      operator=(typename conditional<
  __and_<is_copy_assignable<_T1>,
         is_copy_assignable<_T2>>::value,
  const pair&, const __nonesuch&>::type __p)
      {
 first = __p.first;
 second = __p.second;
 return *this;
      }

      pair&
      operator=(typename conditional<
  __and_<is_move_assignable<_T1>,
         is_move_assignable<_T2>>::value,
  pair&&, __nonesuch&&>::type __p)
      noexcept(__and_<is_nothrow_move_assignable<_T1>,
        is_nothrow_move_assignable<_T2>>::value)
      {
 first = std::forward<first_type>(__p.first);
 second = std::forward<second_type>(__p.second);
 return *this;
      }

      template<typename _U1, typename _U2>

 typename enable_if<__and_<is_assignable<_T1&, const _U1&>,
      is_assignable<_T2&, const _U2&>>::value,
      pair&>::type
 operator=(const pair<_U1, _U2>& __p)
 {
   first = __p.first;
   second = __p.second;
   return *this;
 }

      template<typename _U1, typename _U2>

 typename enable_if<__and_<is_assignable<_T1&, _U1&&>,
      is_assignable<_T2&, _U2&&>>::value,
      pair&>::type
 operator=(pair<_U1, _U2>&& __p)
 {
   first = std::forward<_U1>(__p.first);
   second = std::forward<_U2>(__p.second);
   return *this;
 }


      void
      swap(pair& __p)
      noexcept(__and_<__is_nothrow_swappable<_T1>,
                      __is_nothrow_swappable<_T2>>::value)
      {
 using std::swap;
 swap(first, __p.first);
 swap(second, __p.second);
      }

    private:
      template<typename... _Args1, size_t... _Indexes1,
        typename... _Args2, size_t... _Indexes2>

        pair(tuple<_Args1...>&, tuple<_Args2...>&,
      _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);

    };
# 464 "/usr/include/c++/11/bits/stl_pair.h" 3
  template<typename _T1, typename _T2>
    inline constexpr bool
    operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return __x.first == __y.first && __x.second == __y.second; }
# 487 "/usr/include/c++/11/bits/stl_pair.h" 3
  template<typename _T1, typename _T2>
    inline constexpr bool
    operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return __x.first < __y.first
      || (!(__y.first < __x.first) && __x.second < __y.second); }


  template<typename _T1, typename _T2>
    inline constexpr bool
    operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return !(__x == __y); }


  template<typename _T1, typename _T2>
    inline constexpr bool
    operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return __y < __x; }


  template<typename _T1, typename _T2>
    inline constexpr bool
    operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return !(__y < __x); }


  template<typename _T1, typename _T2>
    inline constexpr bool
    operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
    { return !(__x < __y); }
# 524 "/usr/include/c++/11/bits/stl_pair.h" 3
  template<typename _T1, typename _T2>
    inline





    void

    swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
    noexcept(noexcept(__x.swap(__y)))
    { __x.swap(__y); }
# 564 "/usr/include/c++/11/bits/stl_pair.h" 3
  template<typename _T1, typename _T2>
    constexpr pair<typename __decay_and_strip<_T1>::__type,
                   typename __decay_and_strip<_T2>::__type>
    make_pair(_T1&& __x, _T2&& __y)
    {
      typedef typename __decay_and_strip<_T1>::__type __ds_type1;
      typedef typename __decay_and_strip<_T2>::__type __ds_type2;
      typedef pair<__ds_type1, __ds_type2> __pair_type;
      return __pair_type(std::forward<_T1>(__x), std::forward<_T2>(__y));
    }
# 583 "/usr/include/c++/11/bits/stl_pair.h" 3

}
# 65 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 1 3
# 62 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
       
# 63 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
# 74 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 93 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
  struct input_iterator_tag { };


  struct output_iterator_tag { };


  struct forward_iterator_tag : public input_iterator_tag { };



  struct bidirectional_iterator_tag : public forward_iterator_tag { };



  struct random_access_iterator_tag : public bidirectional_iterator_tag { };
# 125 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
  template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t,
           typename _Pointer = _Tp*, typename _Reference = _Tp&>
    struct iterator
    {

      typedef _Category iterator_category;

      typedef _Tp value_type;

      typedef _Distance difference_type;

      typedef _Pointer pointer;

      typedef _Reference reference;
    };
# 149 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
  template<typename _Iterator>
    struct iterator_traits;




  template<typename _Iterator, typename = __void_t<>>
    struct __iterator_traits { };



  template<typename _Iterator>
    struct __iterator_traits<_Iterator,
        __void_t<typename _Iterator::iterator_category,
          typename _Iterator::value_type,
          typename _Iterator::difference_type,
          typename _Iterator::pointer,
          typename _Iterator::reference>>
    {
      typedef typename _Iterator::iterator_category iterator_category;
      typedef typename _Iterator::value_type value_type;
      typedef typename _Iterator::difference_type difference_type;
      typedef typename _Iterator::pointer pointer;
      typedef typename _Iterator::reference reference;
    };


  template<typename _Iterator>
    struct iterator_traits
    : public __iterator_traits<_Iterator> { };
# 209 "/usr/include/c++/11/bits/stl_iterator_base_types.h" 3
  template<typename _Tp>
    struct iterator_traits<_Tp*>
    {
      typedef random_access_iterator_tag iterator_category;
      typedef _Tp value_type;
      typedef ptrdiff_t difference_type;
      typedef _Tp* pointer;
      typedef _Tp& reference;
    };


  template<typename _Tp>
    struct iterator_traits<const _Tp*>
    {
      typedef random_access_iterator_tag iterator_category;
      typedef _Tp value_type;
      typedef ptrdiff_t difference_type;
      typedef const _Tp* pointer;
      typedef const _Tp& reference;
    };






  template<typename _Iter>
    inline constexpr
    typename iterator_traits<_Iter>::iterator_category
    __iterator_category(const _Iter&)
    { return typename iterator_traits<_Iter>::iterator_category(); }




  template<typename _Iter>
    using __iterator_category_t
      = typename iterator_traits<_Iter>::iterator_category;

  template<typename _InIter>
    using _RequireInputIter =
      __enable_if_t<is_convertible<__iterator_category_t<_InIter>,
       input_iterator_tag>::value>;

  template<typename _It,
    typename _Cat = __iterator_category_t<_It>>
    struct __is_random_access_iter
      : is_base_of<random_access_iterator_tag, _Cat>
    {
      typedef is_base_of<random_access_iterator_tag, _Cat> _Base;
      enum { __value = _Base::value };
    };








}
# 66 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 1 3
# 62 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 3
       
# 63 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 3

# 1 "/usr/include/c++/11/bits/concept_check.h" 1 3
# 33 "/usr/include/c++/11/bits/concept_check.h" 3
       
# 34 "/usr/include/c++/11/bits/concept_check.h" 3
# 65 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 2 3
# 1 "/usr/include/c++/11/debug/assertions.h" 1 3
# 66 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{




  template <typename> struct _List_iterator;
  template <typename> struct _List_const_iterator;


  template<typename _InputIterator>
    inline
    typename iterator_traits<_InputIterator>::difference_type
    __distance(_InputIterator __first, _InputIterator __last,
               input_iterator_tag)
    {

     

      typename iterator_traits<_InputIterator>::difference_type __n = 0;
      while (__first != __last)
 {
   ++__first;
   ++__n;
 }
      return __n;
    }

  template<typename _RandomAccessIterator>
    inline
    typename iterator_traits<_RandomAccessIterator>::difference_type
    __distance(_RandomAccessIterator __first, _RandomAccessIterator __last,
               random_access_iterator_tag)
    {

     

      return __last - __first;
    }



  template<typename _Tp>
    ptrdiff_t
    __distance(std::_List_iterator<_Tp>,
        std::_List_iterator<_Tp>,
        input_iterator_tag);

  template<typename _Tp>
    ptrdiff_t
    __distance(std::_List_const_iterator<_Tp>,
        std::_List_const_iterator<_Tp>,
        input_iterator_tag);
# 135 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 3
  template<typename _InputIterator>
    inline
    typename iterator_traits<_InputIterator>::difference_type
    distance(_InputIterator __first, _InputIterator __last)
    {

      return std::__distance(__first, __last,
        std::__iterator_category(__first));
    }

  template<typename _InputIterator, typename _Distance>
    inline void
    __advance(_InputIterator& __i, _Distance __n, input_iterator_tag)
    {

     
      do { { if (__builtin_expect(!bool(__n >= 0), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_iterator_base_funcs.h", 151, __PRETTY_FUNCTION__, "__n >= 0"); } } while (false);
      while (__n--)
 ++__i;
    }

  template<typename _BidirectionalIterator, typename _Distance>
    inline void
    __advance(_BidirectionalIterator& __i, _Distance __n,
       bidirectional_iterator_tag)
    {

     

      if (__n > 0)
        while (__n--)
   ++__i;
      else
        while (__n++)
   --__i;
    }

  template<typename _RandomAccessIterator, typename _Distance>
    inline void
    __advance(_RandomAccessIterator& __i, _Distance __n,
              random_access_iterator_tag)
    {

     

      if (__builtin_constant_p(__n) && __n == 1)
 ++__i;
      else if (__builtin_constant_p(__n) && __n == -1)
 --__i;
      else
 __i += __n;
    }
# 200 "/usr/include/c++/11/bits/stl_iterator_base_funcs.h" 3
  template<typename _InputIterator, typename _Distance>
    inline void
    advance(_InputIterator& __i, _Distance __n)
    {

      typename iterator_traits<_InputIterator>::difference_type __d = __n;
      std::__advance(__i, __d, std::__iterator_category(__i));
    }



  template<typename _InputIterator>
    inline _InputIterator
    next(_InputIterator __x, typename
  iterator_traits<_InputIterator>::difference_type __n = 1)
    {

     
      std::advance(__x, __n);
      return __x;
    }

  template<typename _BidirectionalIterator>
    inline _BidirectionalIterator
    prev(_BidirectionalIterator __x, typename
  iterator_traits<_BidirectionalIterator>::difference_type __n = 1)
    {

     

      std::advance(__x, -__n);
      return __x;
    }




}
# 67 "/usr/include/c++/11/bits/stl_algobase.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_iterator.h" 1 3
# 66 "/usr/include/c++/11/bits/stl_iterator.h" 3
# 1 "/usr/include/c++/11/bits/ptr_traits.h" 1 3
# 42 "/usr/include/c++/11/bits/ptr_traits.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{


  class __undefined;


  template<typename _Tp>
    struct __get_first_arg
    { using type = __undefined; };

  template<template<typename, typename...> class _Template, typename _Tp,
           typename... _Types>
    struct __get_first_arg<_Template<_Tp, _Types...>>
    { using type = _Tp; };

  template<typename _Tp>
    using __get_first_arg_t = typename __get_first_arg<_Tp>::type;


  template<typename _Tp, typename _Up>
    struct __replace_first_arg
    { };

  template<template<typename, typename...> class _Template, typename _Up,
           typename _Tp, typename... _Types>
    struct __replace_first_arg<_Template<_Tp, _Types...>, _Up>
    { using type = _Template<_Up, _Types...>; };

  template<typename _Tp, typename _Up>
    using __replace_first_arg_t = typename __replace_first_arg<_Tp, _Up>::type;

  template<typename _Tp>
    using __make_not_void
      = typename conditional<is_void<_Tp>::value, __undefined, _Tp>::type;





  template<typename _Ptr>
    struct pointer_traits
    {
    private:
      template<typename _Tp>
 using __element_type = typename _Tp::element_type;

      template<typename _Tp>
 using __difference_type = typename _Tp::difference_type;

      template<typename _Tp, typename _Up, typename = void>
 struct __rebind : __replace_first_arg<_Tp, _Up> { };

      template<typename _Tp, typename _Up>
 struct __rebind<_Tp, _Up, __void_t<typename _Tp::template rebind<_Up>>>
 { using type = typename _Tp::template rebind<_Up>; };

    public:

      using pointer = _Ptr;


      using element_type
 = __detected_or_t<__get_first_arg_t<_Ptr>, __element_type, _Ptr>;


      using difference_type
 = __detected_or_t<ptrdiff_t, __difference_type, _Ptr>;


      template<typename _Up>
        using rebind = typename __rebind<_Ptr, _Up>::type;

      static _Ptr
      pointer_to(__make_not_void<element_type>& __e)
      { return _Ptr::pointer_to(__e); }

      static_assert(!is_same<element_type, __undefined>::value,
   "pointer type defines element_type or is like SomePointer<T, Args>");
    };





  template<typename _Tp>
    struct pointer_traits<_Tp*>
    {

      typedef _Tp* pointer;

      typedef _Tp element_type;

      typedef ptrdiff_t difference_type;

      template<typename _Up>
        using rebind = _Up*;






      static pointer
      pointer_to(__make_not_void<element_type>& __r) noexcept
      { return std::addressof(__r); }
    };


  template<typename _Ptr, typename _Tp>
    using __ptr_rebind = typename pointer_traits<_Ptr>::template rebind<_Tp>;

  template<typename _Tp>
    constexpr _Tp*
    __to_address(_Tp* __ptr) noexcept
    {
      static_assert(!std::is_function<_Tp>::value, "not a function pointer");
      return __ptr;
    }


  template<typename _Ptr>
    constexpr typename std::pointer_traits<_Ptr>::element_type*
    __to_address(const _Ptr& __ptr)
    { return std::__to_address(__ptr.operator->()); }
# 210 "/usr/include/c++/11/bits/ptr_traits.h" 3

}
# 67 "/usr/include/c++/11/bits/stl_iterator.h" 2 3
# 86 "/usr/include/c++/11/bits/stl_iterator.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 125 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
    class reverse_iterator
    : public iterator<typename iterator_traits<_Iterator>::iterator_category,
        typename iterator_traits<_Iterator>::value_type,
        typename iterator_traits<_Iterator>::difference_type,
        typename iterator_traits<_Iterator>::pointer,
                      typename iterator_traits<_Iterator>::reference>
    {
      template<typename _Iter>
 friend class reverse_iterator;
# 144 "/usr/include/c++/11/bits/stl_iterator.h" 3
    protected:
      _Iterator current;

      typedef iterator_traits<_Iterator> __traits_type;

    public:
      typedef _Iterator iterator_type;
      typedef typename __traits_type::difference_type difference_type;
      typedef typename __traits_type::pointer pointer;
      typedef typename __traits_type::reference reference;
# 172 "/usr/include/c++/11/bits/stl_iterator.h" 3
     
      reverse_iterator() : current() { }




      explicit
      reverse_iterator(iterator_type __x) : current(__x) { }




     
      reverse_iterator(const reverse_iterator& __x)
      : current(__x.current) { }


      reverse_iterator& operator=(const reverse_iterator&) = default;






      template<typename _Iter>




        reverse_iterator(const reverse_iterator<_Iter>& __x)
 : current(__x.current) { }


      template<typename _Iter>





 reverse_iterator&
 operator=(const reverse_iterator<_Iter>& __x)
 {
   current = __x.current;
   return *this;
 }





      iterator_type
      base() const
      { return current; }
# 236 "/usr/include/c++/11/bits/stl_iterator.h" 3
      reference
      operator*() const
      {
 _Iterator __tmp = current;
 return *--__tmp;
      }






      pointer
      operator->() const




      {


 _Iterator __tmp = current;
 --__tmp;
 return _S_to_pointer(__tmp);
      }






      reverse_iterator&
      operator++()
      {
 --current;
 return *this;
      }






      reverse_iterator
      operator++(int)
      {
 reverse_iterator __tmp = *this;
 --current;
 return __tmp;
      }






      reverse_iterator&
      operator--()
      {
 ++current;
 return *this;
      }






      reverse_iterator
      operator--(int)
      {
 reverse_iterator __tmp = *this;
 ++current;
 return __tmp;
      }






      reverse_iterator
      operator+(difference_type __n) const
      { return reverse_iterator(current - __n); }







      reverse_iterator&
      operator+=(difference_type __n)
      {
 current -= __n;
 return *this;
      }






      reverse_iterator
      operator-(difference_type __n) const
      { return reverse_iterator(current + __n); }







      reverse_iterator&
      operator-=(difference_type __n)
      {
 current += __n;
 return *this;
      }






      reference
      operator[](difference_type __n) const
      { return *(*this + __n); }
# 390 "/usr/include/c++/11/bits/stl_iterator.h" 3
    private:
      template<typename _Tp>
 static _Tp*
 _S_to_pointer(_Tp* __p)
        { return __p; }

      template<typename _Tp>
 static pointer
 _S_to_pointer(_Tp __t)
        { return __t.operator->(); }
    };
# 413 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
    inline bool
    operator==(const reverse_iterator<_Iterator>& __x,
        const reverse_iterator<_Iterator>& __y)
    { return __x.base() == __y.base(); }

  template<typename _Iterator>
    inline bool
    operator<(const reverse_iterator<_Iterator>& __x,
       const reverse_iterator<_Iterator>& __y)
    { return __y.base() < __x.base(); }

  template<typename _Iterator>
    inline bool
    operator!=(const reverse_iterator<_Iterator>& __x,
        const reverse_iterator<_Iterator>& __y)
    { return !(__x == __y); }

  template<typename _Iterator>
    inline bool
    operator>(const reverse_iterator<_Iterator>& __x,
       const reverse_iterator<_Iterator>& __y)
    { return __y < __x; }

  template<typename _Iterator>
    inline bool
    operator<=(const reverse_iterator<_Iterator>& __x,
        const reverse_iterator<_Iterator>& __y)
    { return !(__y < __x); }

  template<typename _Iterator>
    inline bool
    operator>=(const reverse_iterator<_Iterator>& __x,
        const reverse_iterator<_Iterator>& __y)
    { return !(__x < __y); }




  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator==(const reverse_iterator<_IteratorL>& __x,
        const reverse_iterator<_IteratorR>& __y)
    { return __x.base() == __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator<(const reverse_iterator<_IteratorL>& __x,
       const reverse_iterator<_IteratorR>& __y)
    { return __x.base() > __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator!=(const reverse_iterator<_IteratorL>& __x,
        const reverse_iterator<_IteratorR>& __y)
    { return __x.base() != __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator>(const reverse_iterator<_IteratorL>& __x,
       const reverse_iterator<_IteratorR>& __y)
    { return __x.base() < __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator<=(const reverse_iterator<_IteratorL>& __x,
        const reverse_iterator<_IteratorR>& __y)
    { return __x.base() >= __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator>=(const reverse_iterator<_IteratorL>& __x,
        const reverse_iterator<_IteratorR>& __y)
    { return __x.base() <= __y.base(); }
# 554 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _IteratorL, typename _IteratorR>
    inline auto
    operator-(const reverse_iterator<_IteratorL>& __x,
       const reverse_iterator<_IteratorR>& __y)
    -> decltype(__y.base() - __x.base())
    { return __y.base() - __x.base(); }


  template<typename _Iterator>
    inline reverse_iterator<_Iterator>
    operator+(typename reverse_iterator<_Iterator>::difference_type __n,
       const reverse_iterator<_Iterator>& __x)
    { return reverse_iterator<_Iterator>(__x.base() - __n); }



  template<typename _Iterator>
    inline reverse_iterator<_Iterator>
    __make_reverse_iterator(_Iterator __i)
    { return reverse_iterator<_Iterator>(__i); }
# 595 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
   
    auto
    __niter_base(reverse_iterator<_Iterator> __it)
    -> decltype(__make_reverse_iterator(__niter_base(__it.base())))
    { return __make_reverse_iterator(__niter_base(__it.base())); }

  template<typename _Iterator>
    struct __is_move_iterator<reverse_iterator<_Iterator> >
      : __is_move_iterator<_Iterator>
    { };

  template<typename _Iterator>
   
    auto
    __miter_base(reverse_iterator<_Iterator> __it)
    -> decltype(__make_reverse_iterator(__miter_base(__it.base())))
    { return __make_reverse_iterator(__miter_base(__it.base())); }
# 626 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
    class back_insert_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {
    protected:
      _Container* container;

    public:

      typedef _Container container_type;







      explicit
      back_insert_iterator(_Container& __x)
      : container(std::__addressof(__x)) { }
# 666 "/usr/include/c++/11/bits/stl_iterator.h" 3
     
      back_insert_iterator&
      operator=(const typename _Container::value_type& __value)
      {
 container->push_back(__value);
 return *this;
      }

     
      back_insert_iterator&
      operator=(typename _Container::value_type&& __value)
      {
 container->push_back(std::move(__value));
 return *this;
      }



     
      back_insert_iterator&
      operator*()
      { return *this; }


     
      back_insert_iterator&
      operator++()
      { return *this; }


     
      back_insert_iterator
      operator++(int)
      { return *this; }
    };
# 713 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
   
    inline back_insert_iterator<_Container>
    back_inserter(_Container& __x)
    { return back_insert_iterator<_Container>(__x); }
# 729 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
    class front_insert_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {
    protected:
      _Container* container;

    public:

      typedef _Container container_type;







      explicit
      front_insert_iterator(_Container& __x)
      : container(std::__addressof(__x)) { }
# 769 "/usr/include/c++/11/bits/stl_iterator.h" 3
     
      front_insert_iterator&
      operator=(const typename _Container::value_type& __value)
      {
 container->push_front(__value);
 return *this;
      }

     
      front_insert_iterator&
      operator=(typename _Container::value_type&& __value)
      {
 container->push_front(std::move(__value));
 return *this;
      }



     
      front_insert_iterator&
      operator*()
      { return *this; }


     
      front_insert_iterator&
      operator++()
      { return *this; }


     
      front_insert_iterator
      operator++(int)
      { return *this; }
    };
# 816 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
   
    inline front_insert_iterator<_Container>
    front_inserter(_Container& __x)
    { return front_insert_iterator<_Container>(__x); }
# 836 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
    class insert_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {







      typedef typename _Container::iterator _Iter;

    protected:
      _Container* container;
      _Iter iter;


    public:

      typedef _Container container_type;
# 868 "/usr/include/c++/11/bits/stl_iterator.h" 3
     
      insert_iterator(_Container& __x, _Iter __i)
      : container(std::__addressof(__x)), iter(__i) {}
# 904 "/usr/include/c++/11/bits/stl_iterator.h" 3
     
      insert_iterator&
      operator=(const typename _Container::value_type& __value)
      {
 iter = container->insert(iter, __value);
 ++iter;
 return *this;
      }

     
      insert_iterator&
      operator=(typename _Container::value_type&& __value)
      {
 iter = container->insert(iter, std::move(__value));
 ++iter;
 return *this;
      }



     
      insert_iterator&
      operator*()
      { return *this; }


     
      insert_iterator&
      operator++()
      { return *this; }


     
      insert_iterator&
      operator++(int)
      { return *this; }
    };
# 960 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Container>
    inline insert_iterator<_Container>
    inserter(_Container& __x, typename _Container::iterator __i)
    { return insert_iterator<_Container>(__x, __i); }





}

namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{

# 982 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator, typename _Container>
    class __normal_iterator
    {
    protected:
      _Iterator _M_current;

      typedef std::iterator_traits<_Iterator> __traits_type;

    public:
      typedef _Iterator iterator_type;
      typedef typename __traits_type::iterator_category iterator_category;
      typedef typename __traits_type::value_type value_type;
      typedef typename __traits_type::difference_type difference_type;
      typedef typename __traits_type::reference reference;
      typedef typename __traits_type::pointer pointer;





      constexpr __normal_iterator() noexcept
      : _M_current(_Iterator()) { }

      explicit
      __normal_iterator(const _Iterator& __i) noexcept
      : _M_current(__i) { }


      template<typename _Iter>
       
        __normal_iterator(const __normal_iterator<_Iter,
     typename __enable_if<
              (std::__are_same<_Iter, typename _Container::pointer>::__value),
        _Container>::__type>& __i) noexcept
        : _M_current(__i.base()) { }


     
      reference
      operator*() const noexcept
      { return *_M_current; }

     
      pointer
      operator->() const noexcept
      { return _M_current; }

     
      __normal_iterator&
      operator++() noexcept
      {
 ++_M_current;
 return *this;
      }

     
      __normal_iterator
      operator++(int) noexcept
      { return __normal_iterator(_M_current++); }


     
      __normal_iterator&
      operator--() noexcept
      {
 --_M_current;
 return *this;
      }

     
      __normal_iterator
      operator--(int) noexcept
      { return __normal_iterator(_M_current--); }


     
      reference
      operator[](difference_type __n) const noexcept
      { return _M_current[__n]; }

     
      __normal_iterator&
      operator+=(difference_type __n) noexcept
      { _M_current += __n; return *this; }

     
      __normal_iterator
      operator+(difference_type __n) const noexcept
      { return __normal_iterator(_M_current + __n); }

     
      __normal_iterator&
      operator-=(difference_type __n) noexcept
      { _M_current -= __n; return *this; }

     
      __normal_iterator
      operator-(difference_type __n) const noexcept
      { return __normal_iterator(_M_current - __n); }

     
      const _Iterator&
      base() const noexcept
      { return _M_current; }
    };
# 1114 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _IteratorL, typename _IteratorR, typename _Container>
   
    inline bool
    operator==(const __normal_iterator<_IteratorL, _Container>& __lhs,
        const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() == __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator==(const __normal_iterator<_Iterator, _Container>& __lhs,
        const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() == __rhs.base(); }

  template<typename _IteratorL, typename _IteratorR, typename _Container>
   
    inline bool
    operator!=(const __normal_iterator<_IteratorL, _Container>& __lhs,
        const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() != __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator!=(const __normal_iterator<_Iterator, _Container>& __lhs,
        const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() != __rhs.base(); }


  template<typename _IteratorL, typename _IteratorR, typename _Container>
    inline bool
    operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
       const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() < __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
       const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() < __rhs.base(); }

  template<typename _IteratorL, typename _IteratorR, typename _Container>
    inline bool
    operator>(const __normal_iterator<_IteratorL, _Container>& __lhs,
       const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() > __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator>(const __normal_iterator<_Iterator, _Container>& __lhs,
       const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() > __rhs.base(); }

  template<typename _IteratorL, typename _IteratorR, typename _Container>
    inline bool
    operator<=(const __normal_iterator<_IteratorL, _Container>& __lhs,
        const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() <= __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator<=(const __normal_iterator<_Iterator, _Container>& __lhs,
        const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() <= __rhs.base(); }

  template<typename _IteratorL, typename _IteratorR, typename _Container>
    inline bool
    operator>=(const __normal_iterator<_IteratorL, _Container>& __lhs,
        const __normal_iterator<_IteratorR, _Container>& __rhs)
    noexcept
    { return __lhs.base() >= __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline bool
    operator>=(const __normal_iterator<_Iterator, _Container>& __lhs,
        const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() >= __rhs.base(); }






  template<typename _IteratorL, typename _IteratorR, typename _Container>


   
    inline auto
    operator-(const __normal_iterator<_IteratorL, _Container>& __lhs,
       const __normal_iterator<_IteratorR, _Container>& __rhs) noexcept
    -> decltype(__lhs.base() - __rhs.base())





    { return __lhs.base() - __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline typename __normal_iterator<_Iterator, _Container>::difference_type
    operator-(const __normal_iterator<_Iterator, _Container>& __lhs,
       const __normal_iterator<_Iterator, _Container>& __rhs)
    noexcept
    { return __lhs.base() - __rhs.base(); }

  template<typename _Iterator, typename _Container>
   
    inline __normal_iterator<_Iterator, _Container>
    operator+(typename __normal_iterator<_Iterator, _Container>::difference_type
       __n, const __normal_iterator<_Iterator, _Container>& __i)
    noexcept
    { return __normal_iterator<_Iterator, _Container>(__i.base() + __n); }


}

namespace std __attribute__ ((__visibility__ ("default")))
{


  template<typename _Iterator, typename _Container>
   
    _Iterator
    __niter_base(__gnu_cxx::__normal_iterator<_Iterator, _Container> __it)
    noexcept(std::is_nothrow_copy_constructible<_Iterator>::value)
    { return __it.base(); }
# 1313 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
    class move_iterator
    {
      _Iterator _M_current;

      using __traits_type = iterator_traits<_Iterator>;



      using __base_ref = typename __traits_type::reference;


      template<typename _Iter2>
 friend class move_iterator;
# 1336 "/usr/include/c++/11/bits/stl_iterator.h" 3
    public:
      using iterator_type = _Iterator;
# 1348 "/usr/include/c++/11/bits/stl_iterator.h" 3
      typedef typename __traits_type::iterator_category iterator_category;
      typedef typename __traits_type::value_type value_type;
      typedef typename __traits_type::difference_type difference_type;

      typedef _Iterator pointer;


      typedef typename conditional<is_reference<__base_ref>::value,
    typename remove_reference<__base_ref>::type&&,
    __base_ref>::type reference;


     
      move_iterator()
      : _M_current() { }

      explicit
      move_iterator(iterator_type __i)
      : _M_current(std::move(__i)) { }

      template<typename _Iter>




 move_iterator(const move_iterator<_Iter>& __i)
 : _M_current(__i._M_current) { }

      template<typename _Iter>





 move_iterator& operator=(const move_iterator<_Iter>& __i)
 {
   _M_current = __i._M_current;
   return *this;
 }


      iterator_type
      base() const
      { return _M_current; }
# 1405 "/usr/include/c++/11/bits/stl_iterator.h" 3
      reference
      operator*() const



      { return static_cast<reference>(*_M_current); }


      pointer
      operator->() const
      { return _M_current; }

      move_iterator&
      operator++()
      {
 ++_M_current;
 return *this;
      }

      move_iterator
      operator++(int)
      {
 move_iterator __tmp = *this;
 ++_M_current;
 return __tmp;
      }







      move_iterator&
      operator--()
      {
 --_M_current;
 return *this;
      }

      move_iterator
      operator--(int)
      {
 move_iterator __tmp = *this;
 --_M_current;
 return __tmp;
      }

      move_iterator
      operator+(difference_type __n) const
      { return move_iterator(_M_current + __n); }

      move_iterator&
      operator+=(difference_type __n)
      {
 _M_current += __n;
 return *this;
      }

      move_iterator
      operator-(difference_type __n) const
      { return move_iterator(_M_current - __n); }

      move_iterator&
      operator-=(difference_type __n)
      {
 _M_current -= __n;
 return *this;
      }

      reference
      operator[](difference_type __n) const



      { return std::move(_M_current[__n]); }
# 1510 "/usr/include/c++/11/bits/stl_iterator.h" 3
    };

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator==(const move_iterator<_IteratorL>& __x,
        const move_iterator<_IteratorR>& __y)



    { return __x.base() == __y.base(); }
# 1529 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator!=(const move_iterator<_IteratorL>& __x,
        const move_iterator<_IteratorR>& __y)
    { return !(__x == __y); }


  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator<(const move_iterator<_IteratorL>& __x,
       const move_iterator<_IteratorR>& __y)



    { return __x.base() < __y.base(); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator<=(const move_iterator<_IteratorL>& __x,
        const move_iterator<_IteratorR>& __y)



    { return !(__y < __x); }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator>(const move_iterator<_IteratorL>& __x,
       const move_iterator<_IteratorR>& __y)



    { return __y < __x; }

  template<typename _IteratorL, typename _IteratorR>
    inline bool
    operator>=(const move_iterator<_IteratorL>& __x,
        const move_iterator<_IteratorR>& __y)



    { return !(__x < __y); }
# 1580 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
    inline bool
    operator==(const move_iterator<_Iterator>& __x,
        const move_iterator<_Iterator>& __y)
    { return __x.base() == __y.base(); }

  template<typename _Iterator>
    inline bool
    operator!=(const move_iterator<_Iterator>& __x,
        const move_iterator<_Iterator>& __y)
    { return !(__x == __y); }

  template<typename _Iterator>
    inline bool
    operator<(const move_iterator<_Iterator>& __x,
       const move_iterator<_Iterator>& __y)
    { return __x.base() < __y.base(); }

  template<typename _Iterator>
    inline bool
    operator<=(const move_iterator<_Iterator>& __x,
        const move_iterator<_Iterator>& __y)
    { return !(__y < __x); }

  template<typename _Iterator>
    inline bool
    operator>(const move_iterator<_Iterator>& __x,
       const move_iterator<_Iterator>& __y)
    { return __y < __x; }

  template<typename _Iterator>
    inline bool
    operator>=(const move_iterator<_Iterator>& __x,
        const move_iterator<_Iterator>& __y)
    { return !(__x < __y); }



  template<typename _IteratorL, typename _IteratorR>
    inline auto
    operator-(const move_iterator<_IteratorL>& __x,
       const move_iterator<_IteratorR>& __y)
    -> decltype(__x.base() - __y.base())
    { return __x.base() - __y.base(); }

  template<typename _Iterator>
    inline move_iterator<_Iterator>
    operator+(typename move_iterator<_Iterator>::difference_type __n,
       const move_iterator<_Iterator>& __x)
    { return __x + __n; }

  template<typename _Iterator>
    inline move_iterator<_Iterator>
    make_move_iterator(_Iterator __i)
    { return move_iterator<_Iterator>(std::move(__i)); }

  template<typename _Iterator, typename _ReturnType
    = typename conditional<__move_if_noexcept_cond
      <typename iterator_traits<_Iterator>::value_type>::value,
                _Iterator, move_iterator<_Iterator>>::type>
    inline _ReturnType
    __make_move_if_noexcept_iterator(_Iterator __i)
    { return _ReturnType(__i); }



  template<typename _Tp, typename _ReturnType
    = typename conditional<__move_if_noexcept_cond<_Tp>::value,
      const _Tp*, move_iterator<_Tp*>>::type>
    inline _ReturnType
    __make_move_if_noexcept_iterator(_Tp* __i)
    { return _ReturnType(__i); }
# 2249 "/usr/include/c++/11/bits/stl_iterator.h" 3
  template<typename _Iterator>
    auto
    __niter_base(move_iterator<_Iterator> __it)
    -> decltype(make_move_iterator(__niter_base(__it.base())))
    { return make_move_iterator(__niter_base(__it.base())); }

  template<typename _Iterator>
    struct __is_move_iterator<move_iterator<_Iterator> >
    {
      enum { __value = 1 };
      typedef __true_type __type;
    };

  template<typename _Iterator>
    auto
    __miter_base(move_iterator<_Iterator> __it)
    -> decltype(__miter_base(__it.base()))
    { return __miter_base(__it.base()); }
# 2296 "/usr/include/c++/11/bits/stl_iterator.h" 3

}
# 68 "/usr/include/c++/11/bits/stl_algobase.h" 2 3

# 1 "/usr/include/c++/11/debug/debug.h" 1 3
# 48 "/usr/include/c++/11/debug/debug.h" 3
namespace std
{
  namespace __debug { }
}




namespace __gnu_debug
{
  using namespace std::__debug;

  template<typename _Ite, typename _Seq, typename _Cat>
    struct _Safe_iterator;
}
# 70 "/usr/include/c++/11/bits/stl_algobase.h" 2 3

# 1 "/usr/include/c++/11/bits/predefined_ops.h" 1 3
# 33 "/usr/include/c++/11/bits/predefined_ops.h" 3
namespace __gnu_cxx
{
namespace __ops
{
  struct _Iter_less_iter
  {
    template<typename _Iterator1, typename _Iterator2>
     
      bool
      operator()(_Iterator1 __it1, _Iterator2 __it2) const
      { return *__it1 < *__it2; }
  };

 
  inline _Iter_less_iter
  __iter_less_iter()
  { return _Iter_less_iter(); }

  struct _Iter_less_val
  {

    constexpr _Iter_less_val() = default;




   
    explicit
    _Iter_less_val(_Iter_less_iter) { }

    template<typename _Iterator, typename _Value>
     
      bool
      operator()(_Iterator __it, _Value& __val) const
      { return *__it < __val; }
  };

 
  inline _Iter_less_val
  __iter_less_val()
  { return _Iter_less_val(); }

 
  inline _Iter_less_val
  __iter_comp_val(_Iter_less_iter)
  { return _Iter_less_val(); }

  struct _Val_less_iter
  {

    constexpr _Val_less_iter() = default;




   
    explicit
    _Val_less_iter(_Iter_less_iter) { }

    template<typename _Value, typename _Iterator>
     
      bool
      operator()(_Value& __val, _Iterator __it) const
      { return __val < *__it; }
  };

 
  inline _Val_less_iter
  __val_less_iter()
  { return _Val_less_iter(); }

 
  inline _Val_less_iter
  __val_comp_iter(_Iter_less_iter)
  { return _Val_less_iter(); }

  struct _Iter_equal_to_iter
  {
    template<typename _Iterator1, typename _Iterator2>
     
      bool
      operator()(_Iterator1 __it1, _Iterator2 __it2) const
      { return *__it1 == *__it2; }
  };

 
  inline _Iter_equal_to_iter
  __iter_equal_to_iter()
  { return _Iter_equal_to_iter(); }

  struct _Iter_equal_to_val
  {
    template<typename _Iterator, typename _Value>
     
      bool
      operator()(_Iterator __it, _Value& __val) const
      { return *__it == __val; }
  };

 
  inline _Iter_equal_to_val
  __iter_equal_to_val()
  { return _Iter_equal_to_val(); }

 
  inline _Iter_equal_to_val
  __iter_comp_val(_Iter_equal_to_iter)
  { return _Iter_equal_to_val(); }

  template<typename _Compare>
    struct _Iter_comp_iter
    {
      _Compare _M_comp;

      explicit
      _Iter_comp_iter(_Compare __comp)
 : _M_comp(std::move(__comp))
      { }

      template<typename _Iterator1, typename _Iterator2>
       
        bool
        operator()(_Iterator1 __it1, _Iterator2 __it2)
        { return bool(_M_comp(*__it1, *__it2)); }
    };

  template<typename _Compare>
   
    inline _Iter_comp_iter<_Compare>
    __iter_comp_iter(_Compare __comp)
    { return _Iter_comp_iter<_Compare>(std::move(__comp)); }

  template<typename _Compare>
    struct _Iter_comp_val
    {
      _Compare _M_comp;

     
      explicit
      _Iter_comp_val(_Compare __comp)
 : _M_comp(std::move(__comp))
      { }

     
      explicit
      _Iter_comp_val(const _Iter_comp_iter<_Compare>& __comp)
 : _M_comp(__comp._M_comp)
      { }


     
      explicit
      _Iter_comp_val(_Iter_comp_iter<_Compare>&& __comp)
 : _M_comp(std::move(__comp._M_comp))
      { }


      template<typename _Iterator, typename _Value>

 bool
 operator()(_Iterator __it, _Value& __val)
 { return bool(_M_comp(*__it, __val)); }
    };

  template<typename _Compare>
   
    inline _Iter_comp_val<_Compare>
    __iter_comp_val(_Compare __comp)
    { return _Iter_comp_val<_Compare>(std::move(__comp)); }

  template<typename _Compare>
   
    inline _Iter_comp_val<_Compare>
    __iter_comp_val(_Iter_comp_iter<_Compare> __comp)
    { return _Iter_comp_val<_Compare>(std::move(__comp)); }

  template<typename _Compare>
    struct _Val_comp_iter
    {
      _Compare _M_comp;

     
      explicit
      _Val_comp_iter(_Compare __comp)
 : _M_comp(std::move(__comp))
      { }

     
      explicit
      _Val_comp_iter(const _Iter_comp_iter<_Compare>& __comp)
 : _M_comp(__comp._M_comp)
      { }


     
      explicit
      _Val_comp_iter(_Iter_comp_iter<_Compare>&& __comp)
 : _M_comp(std::move(__comp._M_comp))
      { }


      template<typename _Value, typename _Iterator>

 bool
 operator()(_Value& __val, _Iterator __it)
 { return bool(_M_comp(__val, *__it)); }
    };

  template<typename _Compare>
   
    inline _Val_comp_iter<_Compare>
    __val_comp_iter(_Compare __comp)
    { return _Val_comp_iter<_Compare>(std::move(__comp)); }

  template<typename _Compare>
   
    inline _Val_comp_iter<_Compare>
    __val_comp_iter(_Iter_comp_iter<_Compare> __comp)
    { return _Val_comp_iter<_Compare>(std::move(__comp)); }

  template<typename _Value>
    struct _Iter_equals_val
    {
      _Value& _M_value;

     
      explicit
      _Iter_equals_val(_Value& __value)
 : _M_value(__value)
      { }

      template<typename _Iterator>

 bool
 operator()(_Iterator __it)
 { return *__it == _M_value; }
    };

  template<typename _Value>
   
    inline _Iter_equals_val<_Value>
    __iter_equals_val(_Value& __val)
    { return _Iter_equals_val<_Value>(__val); }

  template<typename _Iterator1>
    struct _Iter_equals_iter
    {
      _Iterator1 _M_it1;

     
      explicit
      _Iter_equals_iter(_Iterator1 __it1)
 : _M_it1(__it1)
      { }

      template<typename _Iterator2>

 bool
 operator()(_Iterator2 __it2)
 { return *__it2 == *_M_it1; }
    };

  template<typename _Iterator>
   
    inline _Iter_equals_iter<_Iterator>
    __iter_comp_iter(_Iter_equal_to_iter, _Iterator __it)
    { return _Iter_equals_iter<_Iterator>(__it); }

  template<typename _Predicate>
    struct _Iter_pred
    {
      _Predicate _M_pred;

     
      explicit
      _Iter_pred(_Predicate __pred)
 : _M_pred(std::move(__pred))
      { }

      template<typename _Iterator>

 bool
 operator()(_Iterator __it)
 { return bool(_M_pred(*__it)); }
    };

  template<typename _Predicate>
   
    inline _Iter_pred<_Predicate>
    __pred_iter(_Predicate __pred)
    { return _Iter_pred<_Predicate>(std::move(__pred)); }

  template<typename _Compare, typename _Value>
    struct _Iter_comp_to_val
    {
      _Compare _M_comp;
      _Value& _M_value;

     
      _Iter_comp_to_val(_Compare __comp, _Value& __value)
 : _M_comp(std::move(__comp)), _M_value(__value)
      { }

      template<typename _Iterator>

 bool
 operator()(_Iterator __it)
 { return bool(_M_comp(*__it, _M_value)); }
    };

  template<typename _Compare, typename _Value>
    _Iter_comp_to_val<_Compare, _Value>
   
    __iter_comp_val(_Compare __comp, _Value &__val)
    {
      return _Iter_comp_to_val<_Compare, _Value>(std::move(__comp), __val);
    }

  template<typename _Compare, typename _Iterator1>
    struct _Iter_comp_to_iter
    {
      _Compare _M_comp;
      _Iterator1 _M_it1;

     
      _Iter_comp_to_iter(_Compare __comp, _Iterator1 __it1)
 : _M_comp(std::move(__comp)), _M_it1(__it1)
      { }

      template<typename _Iterator2>

 bool
 operator()(_Iterator2 __it2)
 { return bool(_M_comp(*__it2, *_M_it1)); }
    };

  template<typename _Compare, typename _Iterator>
   
    inline _Iter_comp_to_iter<_Compare, _Iterator>
    __iter_comp_iter(_Iter_comp_iter<_Compare> __comp, _Iterator __it)
    {
      return _Iter_comp_to_iter<_Compare, _Iterator>(
   std::move(__comp._M_comp), __it);
    }

  template<typename _Predicate>
    struct _Iter_negate
    {
      _Predicate _M_pred;

     
      explicit
      _Iter_negate(_Predicate __pred)
 : _M_pred(std::move(__pred))
      { }

      template<typename _Iterator>

 bool
 operator()(_Iterator __it)
 { return !bool(_M_pred(*__it)); }
    };

  template<typename _Predicate>
   
    inline _Iter_negate<_Predicate>
    __negate(_Iter_pred<_Predicate> __pred)
    { return _Iter_negate<_Predicate>(std::move(__pred._M_pred)); }

}
}
# 72 "/usr/include/c++/11/bits/stl_algobase.h" 2 3







namespace std __attribute__ ((__visibility__ ("default")))
{






  template<typename _Tp, typename _Up>
   
    inline int
    __memcmp(const _Tp* __first1, const _Up* __first2, size_t __num)
    {

      static_assert(sizeof(_Tp) == sizeof(_Up), "can be compared with memcmp");
# 105 "/usr/include/c++/11/bits/stl_algobase.h" 3
 return __builtin_memcmp(__first1, __first2, sizeof(_Tp) * __num);
    }
# 149 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2>
   
    inline void
    iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b)
    {

     

     
# 182 "/usr/include/c++/11/bits/stl_algobase.h" 3
      swap(*__a, *__b);

    }
# 198 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2>
   
    _ForwardIterator2
    swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
  _ForwardIterator2 __first2)
    {

     

     

      ;

      for (; __first1 != __last1; ++__first1, (void)++__first2)
 std::iter_swap(__first1, __first2);
      return __first2;
    }
# 227 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _Tp>
   
    inline const _Tp&
    min(const _Tp& __a, const _Tp& __b)
    {

     

      if (__b < __a)
 return __b;
      return __a;
    }
# 251 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _Tp>
   
    inline const _Tp&
    max(const _Tp& __a, const _Tp& __b)
    {

     

      if (__a < __b)
 return __b;
      return __a;
    }
# 275 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _Tp, typename _Compare>
   
    inline const _Tp&
    min(const _Tp& __a, const _Tp& __b, _Compare __comp)
    {

      if (__comp(__b, __a))
 return __b;
      return __a;
    }
# 297 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _Tp, typename _Compare>
   
    inline const _Tp&
    max(const _Tp& __a, const _Tp& __b, _Compare __comp)
    {

      if (__comp(__a, __b))
 return __b;
      return __a;
    }



  template<typename _Iterator>
   
    inline _Iterator
    __niter_base(_Iterator __it)
    noexcept(std::is_nothrow_copy_constructible<_Iterator>::value)
    { return __it; }

  template<typename _Ite, typename _Seq>
    _Ite
    __niter_base(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq,
   std::random_access_iterator_tag>&);




  template<typename _From, typename _To>
   
    inline _From
    __niter_wrap(_From __from, _To __res)
    { return __from + (__res - std::__niter_base(__from)); }


  template<typename _Iterator>
   
    inline _Iterator
    __niter_wrap(const _Iterator&, _Iterator __res)
    { return __res; }







  template<bool _IsMove, bool _IsSimple, typename _Category>
    struct __copy_move
    {
      template<typename _II, typename _OI>

 static _OI
 __copy_m(_II __first, _II __last, _OI __result)
 {
   for (; __first != __last; ++__result, (void)++__first)
     *__result = *__first;
   return __result;
 }
    };


  template<typename _Category>
    struct __copy_move<true, false, _Category>
    {
      template<typename _II, typename _OI>

 static _OI
 __copy_m(_II __first, _II __last, _OI __result)
 {
   for (; __first != __last; ++__result, (void)++__first)
     *__result = std::move(*__first);
   return __result;
 }
    };


  template<>
    struct __copy_move<false, false, random_access_iterator_tag>
    {
      template<typename _II, typename _OI>

 static _OI
 __copy_m(_II __first, _II __last, _OI __result)
 {
   typedef typename iterator_traits<_II>::difference_type _Distance;
   for(_Distance __n = __last - __first; __n > 0; --__n)
     {
       *__result = *__first;
       ++__first;
       ++__result;
     }
   return __result;
 }
    };


  template<>
    struct __copy_move<true, false, random_access_iterator_tag>
    {
      template<typename _II, typename _OI>

 static _OI
 __copy_m(_II __first, _II __last, _OI __result)
 {
   typedef typename iterator_traits<_II>::difference_type _Distance;
   for(_Distance __n = __last - __first; __n > 0; --__n)
     {
       *__result = std::move(*__first);
       ++__first;
       ++__result;
     }
   return __result;
 }
    };


  template<bool _IsMove>
    struct __copy_move<_IsMove, true, random_access_iterator_tag>
    {
      template<typename _Tp>

 static _Tp*
 __copy_m(const _Tp* __first, const _Tp* __last, _Tp* __result)
 {

   using __assignable = conditional<_IsMove,
        is_move_assignable<_Tp>,
        is_copy_assignable<_Tp>>;

   static_assert( __assignable::type::value, "type is not assignable" );

   const ptrdiff_t _Num = __last - __first;
   if (_Num)
     __builtin_memmove(__result, __first, sizeof(_Tp) * _Num);
   return __result + _Num;
 }
    };



  template<typename _Tp, typename _Ref, typename _Ptr>
    struct _Deque_iterator;

  struct _Bit_iterator;





  template<typename _CharT>
    struct char_traits;

  template<typename _CharT, typename _Traits>
    class istreambuf_iterator;

  template<typename _CharT, typename _Traits>
    class ostreambuf_iterator;

  template<bool _IsMove, typename _CharT>
    typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
      ostreambuf_iterator<_CharT, char_traits<_CharT> > >::__type
    __copy_move_a2(_CharT*, _CharT*,
     ostreambuf_iterator<_CharT, char_traits<_CharT> >);

  template<bool _IsMove, typename _CharT>
    typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
      ostreambuf_iterator<_CharT, char_traits<_CharT> > >::__type
    __copy_move_a2(const _CharT*, const _CharT*,
     ostreambuf_iterator<_CharT, char_traits<_CharT> >);

  template<bool _IsMove, typename _CharT>
    typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
        _CharT*>::__type
    __copy_move_a2(istreambuf_iterator<_CharT, char_traits<_CharT> >,
     istreambuf_iterator<_CharT, char_traits<_CharT> >, _CharT*);

  template<bool _IsMove, typename _CharT>
    typename __gnu_cxx::__enable_if<
      __is_char<_CharT>::__value,
      std::_Deque_iterator<_CharT, _CharT&, _CharT*> >::__type
    __copy_move_a2(
 istreambuf_iterator<_CharT, char_traits<_CharT> >,
 istreambuf_iterator<_CharT, char_traits<_CharT> >,
 std::_Deque_iterator<_CharT, _CharT&, _CharT*>);

  template<bool _IsMove, typename _II, typename _OI>
   
    inline _OI
    __copy_move_a2(_II __first, _II __last, _OI __result)
    {
      typedef typename iterator_traits<_II>::iterator_category _Category;





      return std::__copy_move<_IsMove, __memcpyable<_OI, _II>::__value,
         _Category>::__copy_m(__first, __last, __result);
    }

  template<bool _IsMove,
    typename _Tp, typename _Ref, typename _Ptr, typename _OI>
    _OI
    __copy_move_a1(std::_Deque_iterator<_Tp, _Ref, _Ptr>,
     std::_Deque_iterator<_Tp, _Ref, _Ptr>,
     _OI);

  template<bool _IsMove,
    typename _ITp, typename _IRef, typename _IPtr, typename _OTp>
    std::_Deque_iterator<_OTp, _OTp&, _OTp*>
    __copy_move_a1(std::_Deque_iterator<_ITp, _IRef, _IPtr>,
     std::_Deque_iterator<_ITp, _IRef, _IPtr>,
     std::_Deque_iterator<_OTp, _OTp&, _OTp*>);

  template<bool _IsMove, typename _II, typename _Tp>
    typename __gnu_cxx::__enable_if<
      __is_random_access_iter<_II>::__value,
      std::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type
    __copy_move_a1(_II, _II, std::_Deque_iterator<_Tp, _Tp&, _Tp*>);

  template<bool _IsMove, typename _II, typename _OI>
   
    inline _OI
    __copy_move_a1(_II __first, _II __last, _OI __result)
    { return std::__copy_move_a2<_IsMove>(__first, __last, __result); }

  template<bool _IsMove, typename _II, typename _OI>
   
    inline _OI
    __copy_move_a(_II __first, _II __last, _OI __result)
    {
      return std::__niter_wrap(__result,
  std::__copy_move_a1<_IsMove>(std::__niter_base(__first),
          std::__niter_base(__last),
          std::__niter_base(__result)));
    }

  template<bool _IsMove,
    typename _Ite, typename _Seq, typename _Cat, typename _OI>
    _OI
    __copy_move_a(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
    const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
    _OI);

  template<bool _IsMove,
    typename _II, typename _Ite, typename _Seq, typename _Cat>
    __gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
    __copy_move_a(_II, _II,
    const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&);

  template<bool _IsMove,
    typename _IIte, typename _ISeq, typename _ICat,
    typename _OIte, typename _OSeq, typename _OCat>
    ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>
    __copy_move_a(const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>&,
    const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>&,
    const ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>&);

  template<typename _InputIterator, typename _Size, typename _OutputIterator>
   
    _OutputIterator
    __copy_n_a(_InputIterator __first, _Size __n, _OutputIterator __result,
        bool)
    {
      if (__n > 0)
 {
   while (true)
     {
       *__result = *__first;
       ++__result;
       if (--__n > 0)
  ++__first;
       else
  break;
     }
 }
      return __result;
    }

  template<typename _CharT, typename _Size>
    typename __gnu_cxx::__enable_if<
      __is_char<_CharT>::__value, _CharT*>::__type
    __copy_n_a(istreambuf_iterator<_CharT, char_traits<_CharT> >,
        _Size, _CharT*, bool);

  template<typename _CharT, typename _Size>
    typename __gnu_cxx::__enable_if<
      __is_char<_CharT>::__value,
      std::_Deque_iterator<_CharT, _CharT&, _CharT*> >::__type
    __copy_n_a(istreambuf_iterator<_CharT, char_traits<_CharT> >, _Size,
        std::_Deque_iterator<_CharT, _CharT&, _CharT*>,
        bool);
# 608 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _II, typename _OI>
   
    inline _OI
    copy(_II __first, _II __last, _OI __result)
    {

     
     

      ;

      return std::__copy_move_a<__is_move_iterator<_II>::__value>
      (std::__miter_base(__first), std::__miter_base(__last), __result);
    }
# 641 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _II, typename _OI>
   
    inline _OI
    move(_II __first, _II __last, _OI __result)
    {

     
     

      ;

      return std::__copy_move_a<true>(std::__miter_base(__first),
          std::__miter_base(__last), __result);
    }






  template<bool _IsMove, bool _IsSimple, typename _Category>
    struct __copy_move_backward
    {
      template<typename _BI1, typename _BI2>

 static _BI2
 __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result)
 {
   while (__first != __last)
     *--__result = *--__last;
   return __result;
 }
    };


  template<typename _Category>
    struct __copy_move_backward<true, false, _Category>
    {
      template<typename _BI1, typename _BI2>

 static _BI2
 __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result)
 {
   while (__first != __last)
     *--__result = std::move(*--__last);
   return __result;
 }
    };


  template<>
    struct __copy_move_backward<false, false, random_access_iterator_tag>
    {
      template<typename _BI1, typename _BI2>

 static _BI2
 __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result)
 {
   typename iterator_traits<_BI1>::difference_type
     __n = __last - __first;
   for (; __n > 0; --__n)
     *--__result = *--__last;
   return __result;
 }
    };


  template<>
    struct __copy_move_backward<true, false, random_access_iterator_tag>
    {
      template<typename _BI1, typename _BI2>

 static _BI2
 __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result)
 {
   typename iterator_traits<_BI1>::difference_type
     __n = __last - __first;
   for (; __n > 0; --__n)
     *--__result = std::move(*--__last);
   return __result;
 }
    };


  template<bool _IsMove>
    struct __copy_move_backward<_IsMove, true, random_access_iterator_tag>
    {
      template<typename _Tp>

 static _Tp*
 __copy_move_b(const _Tp* __first, const _Tp* __last, _Tp* __result)
 {

   using __assignable = conditional<_IsMove,
        is_move_assignable<_Tp>,
        is_copy_assignable<_Tp>>;

   static_assert( __assignable::type::value, "type is not assignable" );

   const ptrdiff_t _Num = __last - __first;
   if (_Num)
     __builtin_memmove(__result - _Num, __first, sizeof(_Tp) * _Num);
   return __result - _Num;
 }
    };

  template<bool _IsMove, typename _BI1, typename _BI2>
   
    inline _BI2
    __copy_move_backward_a2(_BI1 __first, _BI1 __last, _BI2 __result)
    {
      typedef typename iterator_traits<_BI1>::iterator_category _Category;





      return std::__copy_move_backward<_IsMove,
           __memcpyable<_BI2, _BI1>::__value,
           _Category>::__copy_move_b(__first,
         __last,
         __result);
    }

  template<bool _IsMove, typename _BI1, typename _BI2>
   
    inline _BI2
    __copy_move_backward_a1(_BI1 __first, _BI1 __last, _BI2 __result)
    { return std::__copy_move_backward_a2<_IsMove>(__first, __last, __result); }

  template<bool _IsMove,
    typename _Tp, typename _Ref, typename _Ptr, typename _OI>
    _OI
    __copy_move_backward_a1(std::_Deque_iterator<_Tp, _Ref, _Ptr>,
       std::_Deque_iterator<_Tp, _Ref, _Ptr>,
       _OI);

  template<bool _IsMove,
    typename _ITp, typename _IRef, typename _IPtr, typename _OTp>
    std::_Deque_iterator<_OTp, _OTp&, _OTp*>
    __copy_move_backward_a1(
   std::_Deque_iterator<_ITp, _IRef, _IPtr>,
   std::_Deque_iterator<_ITp, _IRef, _IPtr>,
   std::_Deque_iterator<_OTp, _OTp&, _OTp*>);

  template<bool _IsMove, typename _II, typename _Tp>
    typename __gnu_cxx::__enable_if<
      __is_random_access_iter<_II>::__value,
      std::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type
    __copy_move_backward_a1(_II, _II,
       std::_Deque_iterator<_Tp, _Tp&, _Tp*>);

  template<bool _IsMove, typename _II, typename _OI>
   
    inline _OI
    __copy_move_backward_a(_II __first, _II __last, _OI __result)
    {
      return std::__niter_wrap(__result,
  std::__copy_move_backward_a1<_IsMove>
    (std::__niter_base(__first), std::__niter_base(__last),
     std::__niter_base(__result)));
    }

  template<bool _IsMove,
    typename _Ite, typename _Seq, typename _Cat, typename _OI>
    _OI
    __copy_move_backward_a(
  const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
  const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
  _OI);

  template<bool _IsMove,
    typename _II, typename _Ite, typename _Seq, typename _Cat>
    __gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
    __copy_move_backward_a(_II, _II,
  const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&);

  template<bool _IsMove,
    typename _IIte, typename _ISeq, typename _ICat,
    typename _OIte, typename _OSeq, typename _OCat>
    ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>
    __copy_move_backward_a(
  const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>&,
  const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>&,
  const ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>&);
# 845 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _BI1, typename _BI2>
   
    inline _BI2
    copy_backward(_BI1 __first, _BI1 __last, _BI2 __result)
    {

     
     
     


      ;

      return std::__copy_move_backward_a<__is_move_iterator<_BI1>::__value>
      (std::__miter_base(__first), std::__miter_base(__last), __result);
    }
# 881 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _BI1, typename _BI2>
   
    inline _BI2
    move_backward(_BI1 __first, _BI1 __last, _BI2 __result)
    {

     
     
     


      ;

      return std::__copy_move_backward_a<true>(std::__miter_base(__first),
            std::__miter_base(__last),
            __result);
    }






  template<typename _ForwardIterator, typename _Tp>
   
    inline typename
    __gnu_cxx::__enable_if<!__is_scalar<_Tp>::__value, void>::__type
    __fill_a1(_ForwardIterator __first, _ForwardIterator __last,
       const _Tp& __value)
    {
      for (; __first != __last; ++__first)
 *__first = __value;
    }

  template<typename _ForwardIterator, typename _Tp>
   
    inline typename
    __gnu_cxx::__enable_if<__is_scalar<_Tp>::__value, void>::__type
    __fill_a1(_ForwardIterator __first, _ForwardIterator __last,
       const _Tp& __value)
    {
      const _Tp __tmp = __value;
      for (; __first != __last; ++__first)
 *__first = __tmp;
    }


  template<typename _Tp>
   
    inline typename
    __gnu_cxx::__enable_if<__is_byte<_Tp>::__value, void>::__type
    __fill_a1(_Tp* __first, _Tp* __last, const _Tp& __c)
    {
      const _Tp __tmp = __c;
# 943 "/usr/include/c++/11/bits/stl_algobase.h" 3
      if (const size_t __len = __last - __first)
 __builtin_memset(__first, static_cast<unsigned char>(__tmp), __len);
    }

  template<typename _Ite, typename _Cont, typename _Tp>
   
    inline void
    __fill_a1(::__gnu_cxx::__normal_iterator<_Ite, _Cont> __first,
       ::__gnu_cxx::__normal_iterator<_Ite, _Cont> __last,
       const _Tp& __value)
    { std::__fill_a1(__first.base(), __last.base(), __value); }

  template<typename _Tp, typename _VTp>
    void
    __fill_a1(const std::_Deque_iterator<_Tp, _Tp&, _Tp*>&,
       const std::_Deque_iterator<_Tp, _Tp&, _Tp*>&,
       const _VTp&);

  void
  __fill_a1(std::_Bit_iterator, std::_Bit_iterator,
     const bool&);

  template<typename _FIte, typename _Tp>
   
    inline void
    __fill_a(_FIte __first, _FIte __last, const _Tp& __value)
    { std::__fill_a1(__first, __last, __value); }

  template<typename _Ite, typename _Seq, typename _Cat, typename _Tp>
    void
    __fill_a(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
      const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>&,
      const _Tp&);
# 989 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    inline void
    fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
    {

     

      ;

      std::__fill_a(__first, __last, __value);
    }


  inline constexpr int
  __size_to_integer(int __n) { return __n; }
  inline constexpr unsigned
  __size_to_integer(unsigned __n) { return __n; }
  inline constexpr long
  __size_to_integer(long __n) { return __n; }
  inline constexpr unsigned long
  __size_to_integer(unsigned long __n) { return __n; }
  inline constexpr long long
  __size_to_integer(long long __n) { return __n; }
  inline constexpr unsigned long long
  __size_to_integer(unsigned long long __n) { return __n; }
# 1041 "/usr/include/c++/11/bits/stl_algobase.h" 3
  inline constexpr long long
  __size_to_integer(float __n) { return (long long)__n; }
  inline constexpr long long
  __size_to_integer(double __n) { return (long long)__n; }
  inline constexpr long long
  __size_to_integer(long double __n) { return (long long)__n; }





  template<typename _OutputIterator, typename _Size, typename _Tp>
   
    inline typename
    __gnu_cxx::__enable_if<!__is_scalar<_Tp>::__value, _OutputIterator>::__type
    __fill_n_a1(_OutputIterator __first, _Size __n, const _Tp& __value)
    {
      for (; __n > 0; --__n, (void) ++__first)
 *__first = __value;
      return __first;
    }

  template<typename _OutputIterator, typename _Size, typename _Tp>
   
    inline typename
    __gnu_cxx::__enable_if<__is_scalar<_Tp>::__value, _OutputIterator>::__type
    __fill_n_a1(_OutputIterator __first, _Size __n, const _Tp& __value)
    {
      const _Tp __tmp = __value;
      for (; __n > 0; --__n, (void) ++__first)
 *__first = __tmp;
      return __first;
    }

  template<typename _Ite, typename _Seq, typename _Cat, typename _Size,
    typename _Tp>
    ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
    __fill_n_a(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __first,
        _Size __n, const _Tp& __value,
        std::input_iterator_tag);

  template<typename _OutputIterator, typename _Size, typename _Tp>
   
    inline _OutputIterator
    __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value,
        std::output_iterator_tag)
    {

      static_assert(is_integral<_Size>{}, "fill_n must pass integral size");

      return __fill_n_a1(__first, __n, __value);
    }

  template<typename _OutputIterator, typename _Size, typename _Tp>
   
    inline _OutputIterator
    __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value,
        std::input_iterator_tag)
    {

      static_assert(is_integral<_Size>{}, "fill_n must pass integral size");

      return __fill_n_a1(__first, __n, __value);
    }

  template<typename _OutputIterator, typename _Size, typename _Tp>
   
    inline _OutputIterator
    __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value,
        std::random_access_iterator_tag)
    {

      static_assert(is_integral<_Size>{}, "fill_n must pass integral size");

      if (__n <= 0)
 return __first;

      ;

      std::__fill_a(__first, __first + __n, __value);
      return __first + __n;
    }
# 1141 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _OI, typename _Size, typename _Tp>
   
    inline _OI
    fill_n(_OI __first, _Size __n, const _Tp& __value)
    {

     

      return std::__fill_n_a(__first, std::__size_to_integer(__n), __value,
          std::__iterator_category(__first));
    }

  template<bool _BoolType>
    struct __equal
    {
      template<typename _II1, typename _II2>

 static bool
 equal(_II1 __first1, _II1 __last1, _II2 __first2)
 {
   for (; __first1 != __last1; ++__first1, (void) ++__first2)
     if (!(*__first1 == *__first2))
       return false;
   return true;
 }
    };

  template<>
    struct __equal<true>
    {
      template<typename _Tp>

 static bool
 equal(const _Tp* __first1, const _Tp* __last1, const _Tp* __first2)
 {
   if (const size_t __len = (__last1 - __first1))
     return !std::__memcmp(__first1, __first2, __len);
   return true;
 }
    };

  template<typename _Tp, typename _Ref, typename _Ptr, typename _II>
    typename __gnu_cxx::__enable_if<
      __is_random_access_iter<_II>::__value, bool>::__type
    __equal_aux1(std::_Deque_iterator<_Tp, _Ref, _Ptr>,
   std::_Deque_iterator<_Tp, _Ref, _Ptr>,
   _II);

  template<typename _Tp1, typename _Ref1, typename _Ptr1,
    typename _Tp2, typename _Ref2, typename _Ptr2>
    bool
    __equal_aux1(std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
   std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
   std::_Deque_iterator<_Tp2, _Ref2, _Ptr2>);

  template<typename _II, typename _Tp, typename _Ref, typename _Ptr>
    typename __gnu_cxx::__enable_if<
      __is_random_access_iter<_II>::__value, bool>::__type
    __equal_aux1(_II, _II,
  std::_Deque_iterator<_Tp, _Ref, _Ptr>);

  template<typename _II1, typename _II2>
   
    inline bool
    __equal_aux1(_II1 __first1, _II1 __last1, _II2 __first2)
    {
      typedef typename iterator_traits<_II1>::value_type _ValueType1;
      const bool __simple = ((__is_integer<_ValueType1>::__value
         || __is_pointer<_ValueType1>::__value)
        && __memcmpable<_II1, _II2>::__value);
      return std::__equal<__simple>::equal(__first1, __last1, __first2);
    }

  template<typename _II1, typename _II2>
   
    inline bool
    __equal_aux(_II1 __first1, _II1 __last1, _II2 __first2)
    {
      return std::__equal_aux1(std::__niter_base(__first1),
          std::__niter_base(__last1),
          std::__niter_base(__first2));
    }

  template<typename _II1, typename _Seq1, typename _Cat1, typename _II2>
    bool
    __equal_aux(const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>&,
  _II2);

  template<typename _II1, typename _II2, typename _Seq2, typename _Cat2>
    bool
    __equal_aux(_II1, _II1,
  const ::__gnu_debug::_Safe_iterator<_II2, _Seq2, _Cat2>&);

  template<typename _II1, typename _Seq1, typename _Cat1,
    typename _II2, typename _Seq2, typename _Cat2>
    bool
    __equal_aux(const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_II2, _Seq2, _Cat2>&);

  template<typename, typename>
    struct __lc_rai
    {
      template<typename _II1, typename _II2>

 static _II1
 __newlast1(_II1, _II1 __last1, _II2, _II2)
 { return __last1; }

      template<typename _II>

 static bool
 __cnd2(_II __first, _II __last)
 { return __first != __last; }
    };

  template<>
    struct __lc_rai<random_access_iterator_tag, random_access_iterator_tag>
    {
      template<typename _RAI1, typename _RAI2>

 static _RAI1
 __newlast1(_RAI1 __first1, _RAI1 __last1,
     _RAI2 __first2, _RAI2 __last2)
 {
   const typename iterator_traits<_RAI1>::difference_type
     __diff1 = __last1 - __first1;
   const typename iterator_traits<_RAI2>::difference_type
     __diff2 = __last2 - __first2;
   return __diff2 < __diff1 ? __first1 + __diff2 : __last1;
 }

      template<typename _RAI>
 static bool
 __cnd2(_RAI, _RAI)
 { return true; }
    };

  template<typename _II1, typename _II2, typename _Compare>
   
    bool
    __lexicographical_compare_impl(_II1 __first1, _II1 __last1,
       _II2 __first2, _II2 __last2,
       _Compare __comp)
    {
      typedef typename iterator_traits<_II1>::iterator_category _Category1;
      typedef typename iterator_traits<_II2>::iterator_category _Category2;
      typedef std::__lc_rai<_Category1, _Category2> __rai_type;

      __last1 = __rai_type::__newlast1(__first1, __last1, __first2, __last2);
      for (; __first1 != __last1 && __rai_type::__cnd2(__first2, __last2);
    ++__first1, (void)++__first2)
 {
   if (__comp(__first1, __first2))
     return true;
   if (__comp(__first2, __first1))
     return false;
 }
      return __first1 == __last1 && __first2 != __last2;
    }

  template<bool _BoolType>
    struct __lexicographical_compare
    {
      template<typename _II1, typename _II2>

 static bool
 __lc(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2)
 {
   using __gnu_cxx::__ops::__iter_less_iter;
   return std::__lexicographical_compare_impl(__first1, __last1,
           __first2, __last2,
           __iter_less_iter());
 }

      template<typename _II1, typename _II2>

 static int
 __3way(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2)
 {
   while (__first1 != __last1)
     {
       if (__first2 == __last2)
  return +1;
       if (*__first1 < *__first2)
  return -1;
       if (*__first2 < *__first1)
  return +1;
       ++__first1;
       ++__first2;
     }
   return int(__first2 == __last2) - 1;
 }
    };

  template<>
    struct __lexicographical_compare<true>
    {
      template<typename _Tp, typename _Up>

 static bool
 __lc(const _Tp* __first1, const _Tp* __last1,
      const _Up* __first2, const _Up* __last2)
 { return __3way(__first1, __last1, __first2, __last2) < 0; }

      template<typename _Tp, typename _Up>

 static ptrdiff_t
 __3way(const _Tp* __first1, const _Tp* __last1,
        const _Up* __first2, const _Up* __last2)
 {
   const size_t __len1 = __last1 - __first1;
   const size_t __len2 = __last2 - __first2;
   if (const size_t __len = std::min(__len1, __len2))
     if (int __result = std::__memcmp(__first1, __first2, __len))
       return __result;
   return ptrdiff_t(__len1 - __len2);
 }
    };

  template<typename _II1, typename _II2>
   
    inline bool
    __lexicographical_compare_aux1(_II1 __first1, _II1 __last1,
       _II2 __first2, _II2 __last2)
    {
      typedef typename iterator_traits<_II1>::value_type _ValueType1;
      typedef typename iterator_traits<_II2>::value_type _ValueType2;
      const bool __simple =
 (__is_memcmp_ordered_with<_ValueType1, _ValueType2>::__value
  && __is_pointer<_II1>::__value
  && __is_pointer<_II2>::__value







  );

      return std::__lexicographical_compare<__simple>::__lc(__first1, __last1,
           __first2, __last2);
    }

  template<typename _Tp1, typename _Ref1, typename _Ptr1,
    typename _Tp2>
    bool
    __lexicographical_compare_aux1(
 std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
 std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
 _Tp2*, _Tp2*);

  template<typename _Tp1,
    typename _Tp2, typename _Ref2, typename _Ptr2>
    bool
    __lexicographical_compare_aux1(_Tp1*, _Tp1*,
 std::_Deque_iterator<_Tp2, _Ref2, _Ptr2>,
 std::_Deque_iterator<_Tp2, _Ref2, _Ptr2>);

  template<typename _Tp1, typename _Ref1, typename _Ptr1,
    typename _Tp2, typename _Ref2, typename _Ptr2>
    bool
    __lexicographical_compare_aux1(
 std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
 std::_Deque_iterator<_Tp1, _Ref1, _Ptr1>,
 std::_Deque_iterator<_Tp2, _Ref2, _Ptr2>,
 std::_Deque_iterator<_Tp2, _Ref2, _Ptr2>);

  template<typename _II1, typename _II2>
   
    inline bool
    __lexicographical_compare_aux(_II1 __first1, _II1 __last1,
      _II2 __first2, _II2 __last2)
    {
      return std::__lexicographical_compare_aux1(std::__niter_base(__first1),
       std::__niter_base(__last1),
       std::__niter_base(__first2),
       std::__niter_base(__last2));
    }

  template<typename _Iter1, typename _Seq1, typename _Cat1,
    typename _II2>
    bool
    __lexicographical_compare_aux(
  const ::__gnu_debug::_Safe_iterator<_Iter1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_Iter1, _Seq1, _Cat1>&,
  _II2, _II2);

  template<typename _II1,
    typename _Iter2, typename _Seq2, typename _Cat2>
    bool
    __lexicographical_compare_aux(
  _II1, _II1,
  const ::__gnu_debug::_Safe_iterator<_Iter2, _Seq2, _Cat2>&,
  const ::__gnu_debug::_Safe_iterator<_Iter2, _Seq2, _Cat2>&);

  template<typename _Iter1, typename _Seq1, typename _Cat1,
    typename _Iter2, typename _Seq2, typename _Cat2>
    bool
    __lexicographical_compare_aux(
  const ::__gnu_debug::_Safe_iterator<_Iter1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_Iter1, _Seq1, _Cat1>&,
  const ::__gnu_debug::_Safe_iterator<_Iter2, _Seq2, _Cat2>&,
  const ::__gnu_debug::_Safe_iterator<_Iter2, _Seq2, _Cat2>&);

  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    _ForwardIterator
    __lower_bound(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __val, _Compare __comp)
    {
      typedef typename iterator_traits<_ForwardIterator>::difference_type
 _DistanceType;

      _DistanceType __len = std::distance(__first, __last);

      while (__len > 0)
 {
   _DistanceType __half = __len >> 1;
   _ForwardIterator __middle = __first;
   std::advance(__middle, __half);
   if (__comp(__middle, __val))
     {
       __first = __middle;
       ++__first;
       __len = __len - __half - 1;
     }
   else
     __len = __half;
 }
      return __first;
    }
# 1487 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    inline _ForwardIterator
    lower_bound(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val)
    {

     
     

      ;

      return std::__lower_bound(__first, __last, __val,
    __gnu_cxx::__ops::__iter_less_val());
    }



  inline constexpr int
  __lg(int __n)
  { return (int)sizeof(int) * 8 - 1 - __builtin_clz(__n); }

  inline constexpr unsigned
  __lg(unsigned __n)
  { return (int)sizeof(int) * 8 - 1 - __builtin_clz(__n); }

  inline constexpr long
  __lg(long __n)
  { return (int)sizeof(long) * 8 - 1 - __builtin_clzl(__n); }

  inline constexpr unsigned long
  __lg(unsigned long __n)
  { return (int)sizeof(long) * 8 - 1 - __builtin_clzl(__n); }

  inline constexpr long long
  __lg(long long __n)
  { return (int)sizeof(long long) * 8 - 1 - __builtin_clzll(__n); }

  inline constexpr unsigned long long
  __lg(unsigned long long __n)
  { return (int)sizeof(long long) * 8 - 1 - __builtin_clzll(__n); }


# 1543 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _II1, typename _II2>
   
    inline bool
    equal(_II1 __first1, _II1 __last1, _II2 __first2)
    {

     
     
     


      ;

      return std::__equal_aux(__first1, __last1, __first2);
    }
# 1574 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _IIter1, typename _IIter2, typename _BinaryPredicate>
   
    inline bool
    equal(_IIter1 __first1, _IIter1 __last1,
   _IIter2 __first2, _BinaryPredicate __binary_pred)
    {

     
     
      ;

      for (; __first1 != __last1; ++__first1, (void)++__first2)
 if (!bool(__binary_pred(*__first1, *__first2)))
   return false;
      return true;
    }



  template<typename _II1, typename _II2>
   
    inline bool
    __equal4(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2)
    {
      using _RATag = random_access_iterator_tag;
      using _Cat1 = typename iterator_traits<_II1>::iterator_category;
      using _Cat2 = typename iterator_traits<_II2>::iterator_category;
      using _RAIters = __and_<is_same<_Cat1, _RATag>, is_same<_Cat2, _RATag>>;
      if (_RAIters())
 {
   auto __d1 = std::distance(__first1, __last1);
   auto __d2 = std::distance(__first2, __last2);
   if (__d1 != __d2)
     return false;
   return std::equal(__first1, __last1, __first2);
 }

      for (; __first1 != __last1 && __first2 != __last2;
   ++__first1, (void)++__first2)
 if (!(*__first1 == *__first2))
   return false;
      return __first1 == __last1 && __first2 == __last2;
    }


  template<typename _II1, typename _II2, typename _BinaryPredicate>
   
    inline bool
    __equal4(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2,
      _BinaryPredicate __binary_pred)
    {
      using _RATag = random_access_iterator_tag;
      using _Cat1 = typename iterator_traits<_II1>::iterator_category;
      using _Cat2 = typename iterator_traits<_II2>::iterator_category;
      using _RAIters = __and_<is_same<_Cat1, _RATag>, is_same<_Cat2, _RATag>>;
      if (_RAIters())
 {
   auto __d1 = std::distance(__first1, __last1);
   auto __d2 = std::distance(__first2, __last2);
   if (__d1 != __d2)
     return false;
   return std::equal(__first1, __last1, __first2,
           __binary_pred);
 }

      for (; __first1 != __last1 && __first2 != __last2;
   ++__first1, (void)++__first2)
 if (!bool(__binary_pred(*__first1, *__first2)))
   return false;
      return __first1 == __last1 && __first2 == __last2;
    }
# 1729 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _II1, typename _II2>
   
    inline bool
    lexicographical_compare(_II1 __first1, _II1 __last1,
       _II2 __first2, _II2 __last2)
    {





     
     
     
     
      ;
      ;

      return std::__lexicographical_compare_aux(__first1, __last1,
      __first2, __last2);
    }
# 1764 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _II1, typename _II2, typename _Compare>
   
    inline bool
    lexicographical_compare(_II1 __first1, _II1 __last1,
       _II2 __first2, _II2 __last2, _Compare __comp)
    {

     
     
      ;
      ;

      return std::__lexicographical_compare_impl
 (__first1, __last1, __first2, __last2,
  __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 1877 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _BinaryPredicate>
   
    pair<_InputIterator1, _InputIterator2>
    __mismatch(_InputIterator1 __first1, _InputIterator1 __last1,
        _InputIterator2 __first2, _BinaryPredicate __binary_pred)
    {
      while (__first1 != __last1 && __binary_pred(__first1, __first2))
 {
   ++__first1;
   ++__first2;
 }
      return pair<_InputIterator1, _InputIterator2>(__first1, __first2);
    }
# 1905 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _InputIterator1, typename _InputIterator2>
   
    inline pair<_InputIterator1, _InputIterator2>
    mismatch(_InputIterator1 __first1, _InputIterator1 __last1,
      _InputIterator2 __first2)
    {

     
     
     


      ;

      return std::__mismatch(__first1, __last1, __first2,
        __gnu_cxx::__ops::__iter_equal_to_iter());
    }
# 1939 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _BinaryPredicate>
   
    inline pair<_InputIterator1, _InputIterator2>
    mismatch(_InputIterator1 __first1, _InputIterator1 __last1,
      _InputIterator2 __first2, _BinaryPredicate __binary_pred)
    {

     
     
      ;

      return std::__mismatch(__first1, __last1, __first2,
 __gnu_cxx::__ops::__iter_comp_iter(__binary_pred));
    }
# 2043 "/usr/include/c++/11/bits/stl_algobase.h" 3



  template<typename _InputIterator, typename _Predicate>
   
    inline _InputIterator
    __find_if(_InputIterator __first, _InputIterator __last,
       _Predicate __pred, input_iterator_tag)
    {
      while (__first != __last && !__pred(__first))
 ++__first;
      return __first;
    }


  template<typename _RandomAccessIterator, typename _Predicate>
   
    _RandomAccessIterator
    __find_if(_RandomAccessIterator __first, _RandomAccessIterator __last,
       _Predicate __pred, random_access_iterator_tag)
    {
      typename iterator_traits<_RandomAccessIterator>::difference_type
 __trip_count = (__last - __first) >> 2;

      for (; __trip_count > 0; --__trip_count)
 {
   if (__pred(__first))
     return __first;
   ++__first;

   if (__pred(__first))
     return __first;
   ++__first;

   if (__pred(__first))
     return __first;
   ++__first;

   if (__pred(__first))
     return __first;
   ++__first;
 }

      switch (__last - __first)
 {
 case 3:
   if (__pred(__first))
     return __first;
   ++__first;

 case 2:
   if (__pred(__first))
     return __first;
   ++__first;

 case 1:
   if (__pred(__first))
     return __first;
   ++__first;

 case 0:
 default:
   return __last;
 }
    }

  template<typename _Iterator, typename _Predicate>
   
    inline _Iterator
    __find_if(_Iterator __first, _Iterator __last, _Predicate __pred)
    {
      return __find_if(__first, __last, __pred,
         std::__iterator_category(__first));
    }

  template<typename _InputIterator, typename _Predicate>
   
    typename iterator_traits<_InputIterator>::difference_type
    __count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred)
    {
      typename iterator_traits<_InputIterator>::difference_type __n = 0;
      for (; __first != __last; ++__first)
 if (__pred(__first))
   ++__n;
      return __n;
    }


  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    bool
    __is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
       _ForwardIterator2 __first2, _BinaryPredicate __pred)
    {


      for (; __first1 != __last1; ++__first1, (void)++__first2)
 if (!__pred(__first1, __first2))
   break;

      if (__first1 == __last1)
 return true;



      _ForwardIterator2 __last2 = __first2;
      std::advance(__last2, std::distance(__first1, __last1));
      for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan)
 {
   if (__scan != std::__find_if(__first1, __scan,
     __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)))
     continue;

   auto __matches
     = std::__count_if(__first2, __last2,
   __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan));
   if (0 == __matches ||
       std::__count_if(__scan, __last1,
   __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan))
       != __matches)
     return false;
 }
      return true;
    }
# 2181 "/usr/include/c++/11/bits/stl_algobase.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2>
   
    inline bool
    is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
     _ForwardIterator2 __first2)
    {

     
     
     


      ;

      return std::__is_permutation(__first1, __last1, __first2,
       __gnu_cxx::__ops::__iter_equal_to_iter());
    }



}
# 64 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/allocator.h" 1 3
# 46 "/usr/include/c++/11/bits/allocator.h" 3
# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++allocator.h" 1 3
# 33 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++allocator.h" 3
# 1 "/usr/include/c++/11/ext/new_allocator.h" 1 3
# 33 "/usr/include/c++/11/ext/new_allocator.h" 3
# 1 "/usr/include/c++/11/new" 1 3
# 38 "/usr/include/c++/11/new" 3
       
# 39 "/usr/include/c++/11/new" 3


# 1 "/usr/include/c++/11/bits/exception.h" 1 3
# 34 "/usr/include/c++/11/bits/exception.h" 3
       
# 35 "/usr/include/c++/11/bits/exception.h" 3

#pragma GCC visibility push(default)



extern "C++" {

namespace std
{
# 60 "/usr/include/c++/11/bits/exception.h" 3
  class exception
  {
  public:
    exception() noexcept { }
    virtual ~exception() noexcept;

    exception(const exception&) = default;
    exception& operator=(const exception&) = default;
    exception(exception&&) = default;
    exception& operator=(exception&&) = default;




    virtual const char*
    what() const noexcept;
  };

}

}

#pragma GCC visibility pop
# 42 "/usr/include/c++/11/new" 2 3

#pragma GCC visibility push(default)

extern "C++" {

namespace std
{






  class bad_alloc : public exception
  {
  public:
    bad_alloc() throw() { }


    bad_alloc(const bad_alloc&) = default;
    bad_alloc& operator=(const bad_alloc&) = default;




    virtual ~bad_alloc() throw();


    virtual const char* what() const throw();
  };


  class bad_array_new_length : public bad_alloc
  {
  public:
    bad_array_new_length() throw() { }



    virtual ~bad_array_new_length() throw();


    virtual const char* what() const throw();
  };






  struct nothrow_t
  {

    explicit nothrow_t() = default;

  };

  extern const nothrow_t nothrow;



  typedef void (*new_handler)();



  new_handler set_new_handler(new_handler) throw();



  new_handler get_new_handler() noexcept;

}
# 126 "/usr/include/c++/11/new" 3
 void* operator new(std::size_t)
  __attribute__((__externally_visible__));
 void* operator new[](std::size_t)
  __attribute__((__externally_visible__));
void operator delete(void*) noexcept
  __attribute__((__externally_visible__));
void operator delete[](void*) noexcept
  __attribute__((__externally_visible__));

void operator delete(void*, std::size_t) noexcept
  __attribute__((__externally_visible__));
void operator delete[](void*, std::size_t) noexcept
  __attribute__((__externally_visible__));

 void* operator new(std::size_t, const std::nothrow_t&) noexcept
  __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
 void* operator new[](std::size_t, const std::nothrow_t&) noexcept
  __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
void operator delete(void*, const std::nothrow_t&) noexcept
  __attribute__((__externally_visible__));
void operator delete[](void*, const std::nothrow_t&) noexcept
  __attribute__((__externally_visible__));
# 174 "/usr/include/c++/11/new" 3
 inline void* operator new(std::size_t, void* __p) noexcept
{ return __p; }
 inline void* operator new[](std::size_t, void* __p) noexcept
{ return __p; }


inline void operator delete (void*, void*) noexcept { }
inline void operator delete[](void*, void*) noexcept { }

}
# 230 "/usr/include/c++/11/new" 3
#pragma GCC visibility pop
# 34 "/usr/include/c++/11/ext/new_allocator.h" 2 3






namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{

# 54 "/usr/include/c++/11/ext/new_allocator.h" 3
  template<typename _Tp>
    class new_allocator
    {
    public:
      typedef _Tp value_type;
      typedef std::size_t size_type;
      typedef std::ptrdiff_t difference_type;

      typedef _Tp* pointer;
      typedef const _Tp* const_pointer;
      typedef _Tp& reference;
      typedef const _Tp& const_reference;

      template<typename _Tp1>
 struct rebind
 { typedef new_allocator<_Tp1> other; };





      typedef std::true_type propagate_on_container_move_assignment;


     
      new_allocator() noexcept { }

     
      new_allocator(const new_allocator&) noexcept { }

      template<typename _Tp1>

 new_allocator(const new_allocator<_Tp1>&) noexcept { }


      ~new_allocator() noexcept { }

      pointer
      address(reference __x) const noexcept
      { return std::__addressof(__x); }

      const_pointer
      address(const_reference __x) const noexcept
      { return std::__addressof(__x); }




      _Tp*
      allocate(size_type __n, const void* = static_cast<const void*>(0))
      {
 if (__builtin_expect(__n > this->_M_max_size(), false))
   {


     if (__n > (std::size_t(-1) / sizeof(_Tp)))
       std::__throw_bad_array_new_length();
     std::__throw_bad_alloc();
   }
# 121 "/usr/include/c++/11/ext/new_allocator.h" 3
 return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp)));
      }


      void
      deallocate(_Tp* __p, size_type __t __attribute__ ((__unused__)))
      {
# 139 "/usr/include/c++/11/ext/new_allocator.h" 3
 ::operator delete(__p

     , __t * sizeof(_Tp)

    );
      }


      size_type
      max_size() const noexcept
      { return _M_max_size(); }


      template<typename _Up, typename... _Args>
 void
 construct(_Up* __p, _Args&&... __args)
 noexcept(std::is_nothrow_constructible<_Up, _Args...>::value)
 { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }

      template<typename _Up>
 void
 destroy(_Up* __p)
 noexcept(std::is_nothrow_destructible<_Up>::value)
 { __p->~_Up(); }
# 175 "/usr/include/c++/11/ext/new_allocator.h" 3
      template<typename _Up>
 friend bool
 operator==(const new_allocator&, const new_allocator<_Up>&)
 noexcept
 { return true; }


      template<typename _Up>
 friend bool
 operator!=(const new_allocator&, const new_allocator<_Up>&)
 noexcept
 { return false; }


    private:
      constexpr size_type
      _M_max_size() const noexcept
      {

 return std::size_t(0x7fffffffffffffffL) / sizeof(_Tp);



      }
    };


}
# 34 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++allocator.h" 2 3


namespace std
{
# 47 "/usr/include/c++/11/x86_64-redhat-linux/bits/c++allocator.h" 3
  template<typename _Tp>
    using __allocator_base = __gnu_cxx::new_allocator<_Tp>;
}
# 47 "/usr/include/c++/11/bits/allocator.h" 2 3
# 1 "/usr/include/c++/11/bits/memoryfwd.h" 1 3
# 46 "/usr/include/c++/11/bits/memoryfwd.h" 3
       
# 47 "/usr/include/c++/11/bits/memoryfwd.h" 3



namespace std __attribute__ ((__visibility__ ("default")))
{

# 63 "/usr/include/c++/11/bits/memoryfwd.h" 3
  template<typename>
    class allocator;


  template<>
    class allocator<void>;




  template<typename, typename>
    struct uses_allocator;





}
# 48 "/usr/include/c++/11/bits/allocator.h" 2 3






namespace std __attribute__ ((__visibility__ ("default")))
{








  template<>
    class allocator<void>
    {
    public:
      typedef void value_type;
      typedef size_t size_type;
      typedef ptrdiff_t difference_type;

      typedef void* pointer;
      typedef const void* const_pointer;

      template<typename _Tp1>
 struct rebind
 { typedef allocator<_Tp1> other; };
# 89 "/usr/include/c++/11/bits/allocator.h" 3
      typedef true_type propagate_on_container_move_assignment;

      typedef true_type is_always_equal;

      template<typename _Up, typename... _Args>
 void
 construct(_Up* __p, _Args&&... __args)
 noexcept(std::is_nothrow_constructible<_Up, _Args...>::value)
 { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }

      template<typename _Up>
 void
 destroy(_Up* __p)
 noexcept(std::is_nothrow_destructible<_Up>::value)
 { __p->~_Up(); }

    };
# 115 "/usr/include/c++/11/bits/allocator.h" 3
  template<typename _Tp>
    class allocator : public __allocator_base<_Tp>
    {
    public:
      typedef _Tp value_type;
      typedef size_t size_type;
      typedef ptrdiff_t difference_type;

      typedef _Tp* pointer;
      typedef const _Tp* const_pointer;
      typedef _Tp& reference;
      typedef const _Tp& const_reference;

      template<typename _Tp1>
 struct rebind
 { typedef allocator<_Tp1> other; };





      typedef true_type propagate_on_container_move_assignment;

      typedef true_type is_always_equal;




     
      allocator() noexcept { }

     
      allocator(const allocator& __a) noexcept
      : __allocator_base<_Tp>(__a) { }



      allocator& operator=(const allocator&) = default;


      template<typename _Tp1>

 allocator(const allocator<_Tp1>&) noexcept { }




      ~allocator() noexcept { }
# 191 "/usr/include/c++/11/bits/allocator.h" 3
      friend bool
      operator==(const allocator&, const allocator&) noexcept
      { return true; }


      friend bool
      operator!=(const allocator&, const allocator&) noexcept
      { return false; }



    };

  template<typename _T1, typename _T2>
    inline bool
    operator==(const allocator<_T1>&, const allocator<_T2>&)
    noexcept
    { return true; }


  template<typename _T1, typename _T2>
    inline bool
    operator!=(const allocator<_T1>&, const allocator<_T2>&)
    noexcept
    { return false; }




  template<typename _Tp>
    class allocator<const _Tp>
    {
    public:
      typedef _Tp value_type;
      template<typename _Up> allocator(const allocator<_Up>&) { }
    };

  template<typename _Tp>
    class allocator<volatile _Tp>
    {
    public:
      typedef _Tp value_type;
      template<typename _Up> allocator(const allocator<_Up>&) { }
    };

  template<typename _Tp>
    class allocator<const volatile _Tp>
    {
    public:
      typedef _Tp value_type;
      template<typename _Up> allocator(const allocator<_Up>&) { }
    };






  extern template class allocator<char>;
  extern template class allocator<wchar_t>;






  template<typename _Alloc, bool = __is_empty(_Alloc)>
    struct __alloc_swap
    { static void _S_do_it(_Alloc&, _Alloc&) noexcept { } };

  template<typename _Alloc>
    struct __alloc_swap<_Alloc, false>
    {
      static void
      _S_do_it(_Alloc& __one, _Alloc& __two) noexcept
      {

 if (__one != __two)
   swap(__one, __two);
      }
    };


  template<typename _Alloc, bool = __is_empty(_Alloc)>
    struct __alloc_neq
    {
      static bool
      _S_do_it(const _Alloc&, const _Alloc&)
      { return false; }
    };

  template<typename _Alloc>
    struct __alloc_neq<_Alloc, false>
    {
      static bool
      _S_do_it(const _Alloc& __one, const _Alloc& __two)
      { return __one != __two; }
    };


  template<typename _Tp, bool
    = __or_<is_copy_constructible<typename _Tp::value_type>,
            is_nothrow_move_constructible<typename _Tp::value_type>>::value>
    struct __shrink_to_fit_aux
    { static bool _S_do_it(_Tp&) noexcept { return false; } };

  template<typename _Tp>
    struct __shrink_to_fit_aux<_Tp, true>
    {
      static bool
      _S_do_it(_Tp& __c) noexcept
      {
# 314 "/usr/include/c++/11/bits/allocator.h" 3
 return false;

      }
    };



}
# 65 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/stl_construct.h" 1 3
# 73 "/usr/include/c++/11/bits/stl_construct.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 106 "/usr/include/c++/11/bits/stl_construct.h" 3
  template<typename _Tp, typename... _Args>
    inline void
    _Construct(_Tp* __p, _Args&&... __args)
    { ::new(static_cast<void*>(__p)) _Tp(std::forward<_Args>(__args)...); }
# 121 "/usr/include/c++/11/bits/stl_construct.h" 3
  template<typename _T1>
    inline void
    _Construct_novalue(_T1* __p)
    { ::new(static_cast<void*>(__p)) _T1; }

  template<typename _ForwardIterator>
    void
    _Destroy(_ForwardIterator __first, _ForwardIterator __last);




  template<typename _Tp>
    inline void
    _Destroy(_Tp* __pointer)
    {



      __pointer->~_Tp();

    }

  template<bool>
    struct _Destroy_aux
    {
      template<typename _ForwardIterator>
 static void
 __destroy(_ForwardIterator __first, _ForwardIterator __last)
 {
   for (; __first != __last; ++__first)
     std::_Destroy(std::__addressof(*__first));
 }
    };

  template<>
    struct _Destroy_aux<true>
    {
      template<typename _ForwardIterator>
        static void
        __destroy(_ForwardIterator, _ForwardIterator) { }
    };






  template<typename _ForwardIterator>
    inline void
    _Destroy(_ForwardIterator __first, _ForwardIterator __last)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
                       _Value_type;


      static_assert(is_destructible<_Value_type>::value,
      "value type is destructible");





      std::_Destroy_aux<__has_trivial_destructor(_Value_type)>::
 __destroy(__first, __last);
    }

  template<bool>
    struct _Destroy_n_aux
    {
      template<typename _ForwardIterator, typename _Size>
 static _ForwardIterator
 __destroy_n(_ForwardIterator __first, _Size __count)
 {
   for (; __count > 0; (void)++__first, --__count)
     std::_Destroy(std::__addressof(*__first));
   return __first;
 }
    };

  template<>
    struct _Destroy_n_aux<true>
    {
      template<typename _ForwardIterator, typename _Size>
        static _ForwardIterator
        __destroy_n(_ForwardIterator __first, _Size __count)
 {
   std::advance(__first, __count);
   return __first;
 }
    };






  template<typename _ForwardIterator, typename _Size>
    inline _ForwardIterator
    _Destroy_n(_ForwardIterator __first, _Size __count)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
                       _Value_type;


      static_assert(is_destructible<_Value_type>::value,
      "value type is destructible");





      return std::_Destroy_n_aux<__has_trivial_destructor(_Value_type)>::
 __destroy_n(__first, __count);
    }
# 253 "/usr/include/c++/11/bits/stl_construct.h" 3

}
# 66 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/stl_uninitialized.h" 1 3
# 67 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
# 1 "/usr/include/c++/11/ext/alloc_traits.h" 1 3
# 32 "/usr/include/c++/11/ext/alloc_traits.h" 3
       
# 33 "/usr/include/c++/11/ext/alloc_traits.h" 3

# 1 "/usr/include/c++/11/bits/alloc_traits.h" 1 3
# 41 "/usr/include/c++/11/bits/alloc_traits.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{





  struct __allocator_traits_base
  {
    template<typename _Tp, typename _Up, typename = void>
      struct __rebind : __replace_first_arg<_Tp, _Up> { };

    template<typename _Tp, typename _Up>
      struct __rebind<_Tp, _Up,
        __void_t<typename _Tp::template rebind<_Up>::other>>
      { using type = typename _Tp::template rebind<_Up>::other; };

  protected:
    template<typename _Tp>
      using __pointer = typename _Tp::pointer;
    template<typename _Tp>
      using __c_pointer = typename _Tp::const_pointer;
    template<typename _Tp>
      using __v_pointer = typename _Tp::void_pointer;
    template<typename _Tp>
      using __cv_pointer = typename _Tp::const_void_pointer;
    template<typename _Tp>
      using __pocca = typename _Tp::propagate_on_container_copy_assignment;
    template<typename _Tp>
      using __pocma = typename _Tp::propagate_on_container_move_assignment;
    template<typename _Tp>
      using __pocs = typename _Tp::propagate_on_container_swap;
    template<typename _Tp>
      using __equal = typename _Tp::is_always_equal;
  };

  template<typename _Alloc, typename _Up>
    using __alloc_rebind
      = typename __allocator_traits_base::template __rebind<_Alloc, _Up>::type;





  template<typename _Alloc>
    struct allocator_traits : __allocator_traits_base
    {

      typedef _Alloc allocator_type;

      typedef typename _Alloc::value_type value_type;






      using pointer = __detected_or_t<value_type*, __pointer, _Alloc>;

    private:

      template<template<typename> class _Func, typename _Tp, typename = void>
 struct _Ptr
 {
   using type = typename pointer_traits<pointer>::template rebind<_Tp>;
 };

      template<template<typename> class _Func, typename _Tp>
 struct _Ptr<_Func, _Tp, __void_t<_Func<_Alloc>>>
 {
   using type = _Func<_Alloc>;
 };


      template<typename _A2, typename _PtrT, typename = void>
 struct _Diff
 { using type = typename pointer_traits<_PtrT>::difference_type; };

      template<typename _A2, typename _PtrT>
 struct _Diff<_A2, _PtrT, __void_t<typename _A2::difference_type>>
 { using type = typename _A2::difference_type; };


      template<typename _A2, typename _DiffT, typename = void>
 struct _Size : make_unsigned<_DiffT> { };

      template<typename _A2, typename _DiffT>
 struct _Size<_A2, _DiffT, __void_t<typename _A2::size_type>>
 { using type = typename _A2::size_type; };

    public:






      using const_pointer = typename _Ptr<__c_pointer, const value_type>::type;







      using void_pointer = typename _Ptr<__v_pointer, void>::type;







      using const_void_pointer = typename _Ptr<__cv_pointer, const void>::type;







      using difference_type = typename _Diff<_Alloc, pointer>::type;







      using size_type = typename _Size<_Alloc, difference_type>::type;







      using propagate_on_container_copy_assignment
 = __detected_or_t<false_type, __pocca, _Alloc>;







      using propagate_on_container_move_assignment
 = __detected_or_t<false_type, __pocma, _Alloc>;







      using propagate_on_container_swap
 = __detected_or_t<false_type, __pocs, _Alloc>;







      using is_always_equal
 = __detected_or_t<typename is_empty<_Alloc>::type, __equal, _Alloc>;

      template<typename _Tp>
 using rebind_alloc = __alloc_rebind<_Alloc, _Tp>;
      template<typename _Tp>
 using rebind_traits = allocator_traits<rebind_alloc<_Tp>>;

    private:
      template<typename _Alloc2>
 static constexpr auto
 _S_allocate(_Alloc2& __a, size_type __n, const_void_pointer __hint, int)
 -> decltype(__a.allocate(__n, __hint))
 { return __a.allocate(__n, __hint); }

      template<typename _Alloc2>
 static constexpr pointer
 _S_allocate(_Alloc2& __a, size_type __n, const_void_pointer, ...)
 { return __a.allocate(__n); }

      template<typename _Tp, typename... _Args>
 struct __construct_helper
 {
   template<typename _Alloc2,
     typename = decltype(std::declval<_Alloc2*>()->construct(
    std::declval<_Tp*>(), std::declval<_Args>()...))>
     static true_type __test(int);

   template<typename>
     static false_type __test(...);

   using type = decltype(__test<_Alloc>(0));
 };

      template<typename _Tp, typename... _Args>
 using __has_construct
   = typename __construct_helper<_Tp, _Args...>::type;

      template<typename _Tp, typename... _Args>
 static _Require<__has_construct<_Tp, _Args...>>
 _S_construct(_Alloc& __a, _Tp* __p, _Args&&... __args)
 noexcept(noexcept(__a.construct(__p, std::forward<_Args>(__args)...)))
 { __a.construct(__p, std::forward<_Args>(__args)...); }

      template<typename _Tp, typename... _Args>
 static
 _Require<__and_<__not_<__has_construct<_Tp, _Args...>>,
          is_constructible<_Tp, _Args...>>>
 _S_construct(_Alloc&, _Tp* __p, _Args&&... __args)
 noexcept(std::is_nothrow_constructible<_Tp, _Args...>::value)
 {

   ::new((void*)__p) _Tp(std::forward<_Args>(__args)...);



 }

      template<typename _Alloc2, typename _Tp>
 static auto
 _S_destroy(_Alloc2& __a, _Tp* __p, int)
 noexcept(noexcept(__a.destroy(__p)))
 -> decltype(__a.destroy(__p))
 { __a.destroy(__p); }

      template<typename _Alloc2, typename _Tp>
 static void
 _S_destroy(_Alloc2&, _Tp* __p, ...)
 noexcept(std::is_nothrow_destructible<_Tp>::value)
 { std::_Destroy(__p); }

      template<typename _Alloc2>
 static constexpr auto
 _S_max_size(_Alloc2& __a, int)
 -> decltype(__a.max_size())
 { return __a.max_size(); }

      template<typename _Alloc2>
 static constexpr size_type
 _S_max_size(_Alloc2&, ...)
 {


   return __gnu_cxx::__numeric_traits<size_type>::__max
     / sizeof(value_type);
 }

      template<typename _Alloc2>
 static constexpr auto
 _S_select(_Alloc2& __a, int)
 -> decltype(__a.select_on_container_copy_construction())
 { return __a.select_on_container_copy_construction(); }

      template<typename _Alloc2>
 static constexpr _Alloc2
 _S_select(_Alloc2& __a, ...)
 { return __a; }

    public:
# 312 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static pointer
      allocate(_Alloc& __a, size_type __n)
      { return __a.allocate(__n); }
# 327 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static pointer
      allocate(_Alloc& __a, size_type __n, const_void_pointer __hint)
      { return _S_allocate(__a, __n, __hint, 0); }
# 339 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static void
      deallocate(_Alloc& __a, pointer __p, size_type __n)
      { __a.deallocate(__p, __n); }
# 354 "/usr/include/c++/11/bits/alloc_traits.h" 3
      template<typename _Tp, typename... _Args>
 static auto
 construct(_Alloc& __a, _Tp* __p, _Args&&... __args)
 noexcept(noexcept(_S_construct(__a, __p,
           std::forward<_Args>(__args)...)))
 -> decltype(_S_construct(__a, __p, std::forward<_Args>(__args)...))
 { _S_construct(__a, __p, std::forward<_Args>(__args)...); }
# 370 "/usr/include/c++/11/bits/alloc_traits.h" 3
      template<typename _Tp>
 static void
 destroy(_Alloc& __a, _Tp* __p)
 noexcept(noexcept(_S_destroy(__a, __p, 0)))
 { _S_destroy(__a, __p, 0); }
# 384 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static size_type
      max_size(const _Alloc& __a) noexcept
      { return _S_max_size(__a, 0); }
# 396 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static _Alloc
      select_on_container_copy_construction(const _Alloc& __rhs)
      { return _S_select(__rhs, 0); }
    };






  template<typename _Tp>
    struct allocator_traits<allocator<_Tp>>
    {

      using allocator_type = allocator<_Tp>;


      using value_type = _Tp;


      using pointer = _Tp*;


      using const_pointer = const _Tp*;


      using void_pointer = void*;


      using const_void_pointer = const void*;


      using difference_type = std::ptrdiff_t;


      using size_type = std::size_t;


      using propagate_on_container_copy_assignment = false_type;


      using propagate_on_container_move_assignment = true_type;


      using propagate_on_container_swap = false_type;


      using is_always_equal = true_type;

      template<typename _Up>
 using rebind_alloc = allocator<_Up>;

      template<typename _Up>
 using rebind_traits = allocator_traits<allocator<_Up>>;
# 458 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static pointer
      allocate(allocator_type& __a, size_type __n)
      { return __a.allocate(__n); }
# 472 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static pointer
      allocate(allocator_type& __a, size_type __n, const_void_pointer __hint)
      {

 return __a.allocate(__n, __hint);



      }
# 490 "/usr/include/c++/11/bits/alloc_traits.h" 3
      static void
      deallocate(allocator_type& __a, pointer __p, size_type __n)
      { __a.deallocate(__p, __n); }
# 505 "/usr/include/c++/11/bits/alloc_traits.h" 3
      template<typename _Up, typename... _Args>
 static void
 construct(allocator_type& __a __attribute__((__unused__)), _Up* __p,
    _Args&&... __args)
 noexcept(std::is_nothrow_constructible<_Up, _Args...>::value)
 {

   __a.construct(__p, std::forward<_Args>(__args)...);



 }
# 525 "/usr/include/c++/11/bits/alloc_traits.h" 3
      template<typename _Up>
 static void
 destroy(allocator_type& __a __attribute__((__unused__)), _Up* __p)
 noexcept(is_nothrow_destructible<_Up>::value)
 {

   __a.destroy(__p);



 }






      static size_type
      max_size(const allocator_type& __a __attribute__((__unused__))) noexcept
      {

 return __a.max_size();



      }






      static allocator_type
      select_on_container_copy_construction(const allocator_type& __rhs)
      { return __rhs; }
    };


  template<typename _Alloc>
    inline void
    __do_alloc_on_copy(_Alloc& __one, const _Alloc& __two, true_type)
    { __one = __two; }

  template<typename _Alloc>
    inline void
    __do_alloc_on_copy(_Alloc&, const _Alloc&, false_type)
    { }


  template<typename _Alloc>
    inline void
    __alloc_on_copy(_Alloc& __one, const _Alloc& __two)
    {
      typedef allocator_traits<_Alloc> __traits;
      typedef typename __traits::propagate_on_container_copy_assignment __pocca;




      __do_alloc_on_copy(__one, __two, __pocca());

    }

  template<typename _Alloc>
    constexpr _Alloc
    __alloc_on_copy(const _Alloc& __a)
    {
      typedef allocator_traits<_Alloc> __traits;
      return __traits::select_on_container_copy_construction(__a);
    }


  template<typename _Alloc>
    inline void __do_alloc_on_move(_Alloc& __one, _Alloc& __two, true_type)
    { __one = std::move(__two); }

  template<typename _Alloc>
    inline void __do_alloc_on_move(_Alloc&, _Alloc&, false_type)
    { }


  template<typename _Alloc>
    inline void
    __alloc_on_move(_Alloc& __one, _Alloc& __two)
    {
      typedef allocator_traits<_Alloc> __traits;
      typedef typename __traits::propagate_on_container_move_assignment __pocma;




      __do_alloc_on_move(__one, __two, __pocma());

    }


  template<typename _Alloc>
    inline void __do_alloc_on_swap(_Alloc& __one, _Alloc& __two, true_type)
    {
      using std::swap;
      swap(__one, __two);
    }

  template<typename _Alloc>
    inline void __do_alloc_on_swap(_Alloc&, _Alloc&, false_type)
    { }


  template<typename _Alloc>
    inline void
    __alloc_on_swap(_Alloc& __one, _Alloc& __two)
    {
      typedef allocator_traits<_Alloc> __traits;
      typedef typename __traits::propagate_on_container_swap __pocs;







      __do_alloc_on_swap(__one, __two, __pocs());

    }

  template<typename _Alloc, typename _Tp,
    typename _ValueT = __remove_cvref_t<typename _Alloc::value_type>,
    typename = void>
    struct __is_alloc_insertable_impl
    : false_type
    { };

  template<typename _Alloc, typename _Tp, typename _ValueT>
    struct __is_alloc_insertable_impl<_Alloc, _Tp, _ValueT,
      __void_t<decltype(allocator_traits<_Alloc>::construct(
     std::declval<_Alloc&>(), std::declval<_ValueT*>(),
     std::declval<_Tp>()))>>
    : true_type
    { };




  template<typename _Alloc>
    struct __is_copy_insertable
    : __is_alloc_insertable_impl<_Alloc,
     typename _Alloc::value_type const&>::type
    { };


  template<typename _Tp>
    struct __is_copy_insertable<allocator<_Tp>>
    : is_copy_constructible<_Tp>
    { };




  template<typename _Alloc>
    struct __is_move_insertable
    : __is_alloc_insertable_impl<_Alloc, typename _Alloc::value_type>::type
    { };


  template<typename _Tp>
    struct __is_move_insertable<allocator<_Tp>>
    : is_move_constructible<_Tp>
    { };


  template<typename _Alloc, typename = void>
    struct __is_allocator : false_type { };

  template<typename _Alloc>
    struct __is_allocator<_Alloc,
      __void_t<typename _Alloc::value_type,
        decltype(std::declval<_Alloc&>().allocate(size_t{}))>>
    : true_type { };

  template<typename _Alloc>
    using _RequireAllocator
      = typename enable_if<__is_allocator<_Alloc>::value, _Alloc>::type;

  template<typename _Alloc>
    using _RequireNotAllocator
      = typename enable_if<!__is_allocator<_Alloc>::value, _Alloc>::type;
# 727 "/usr/include/c++/11/bits/alloc_traits.h" 3
  template<typename _ForwardIterator, typename _Allocator>
    void
    _Destroy(_ForwardIterator __first, _ForwardIterator __last,
      _Allocator& __alloc)
    {
      for (; __first != __last; ++__first)



 allocator_traits<_Allocator>::destroy(__alloc,
           std::__addressof(*__first));

    }

  template<typename _ForwardIterator, typename _Tp>
    inline void
    _Destroy(_ForwardIterator __first, _ForwardIterator __last,
      allocator<_Tp>&)
    {
      _Destroy(__first, __last);
    }


}
# 35 "/usr/include/c++/11/ext/alloc_traits.h" 2 3




namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{






template<typename _Alloc, typename = typename _Alloc::value_type>
  struct __alloc_traits

  : std::allocator_traits<_Alloc>

  {
    typedef _Alloc allocator_type;

    typedef std::allocator_traits<_Alloc> _Base_type;
    typedef typename _Base_type::value_type value_type;
    typedef typename _Base_type::pointer pointer;
    typedef typename _Base_type::const_pointer const_pointer;
    typedef typename _Base_type::size_type size_type;
    typedef typename _Base_type::difference_type difference_type;

    typedef value_type& reference;
    typedef const value_type& const_reference;
    using _Base_type::allocate;
    using _Base_type::deallocate;
    using _Base_type::construct;
    using _Base_type::destroy;
    using _Base_type::max_size;

  private:
    template<typename _Ptr>
      using __is_custom_pointer
 = std::__and_<std::is_same<pointer, _Ptr>,
        std::__not_<std::is_pointer<_Ptr>>>;

  public:

    template<typename _Ptr, typename... _Args>
      static
      std::__enable_if_t<__is_custom_pointer<_Ptr>::value>
      construct(_Alloc& __a, _Ptr __p, _Args&&... __args)
      noexcept(noexcept(_Base_type::construct(__a, std::__to_address(__p),
           std::forward<_Args>(__args)...)))
      {
 _Base_type::construct(__a, std::__to_address(__p),
         std::forward<_Args>(__args)...);
      }


    template<typename _Ptr>
      static
      std::__enable_if_t<__is_custom_pointer<_Ptr>::value>
      destroy(_Alloc& __a, _Ptr __p)
      noexcept(noexcept(_Base_type::destroy(__a, std::__to_address(__p))))
      { _Base_type::destroy(__a, std::__to_address(__p)); }

    static constexpr _Alloc _S_select_on_copy(const _Alloc& __a)
    { return _Base_type::select_on_container_copy_construction(__a); }

    static void _S_on_swap(_Alloc& __a, _Alloc& __b)
    { std::__alloc_on_swap(__a, __b); }

    static constexpr bool _S_propagate_on_copy_assign()
    { return _Base_type::propagate_on_container_copy_assignment::value; }

    static constexpr bool _S_propagate_on_move_assign()
    { return _Base_type::propagate_on_container_move_assignment::value; }

    static constexpr bool _S_propagate_on_swap()
    { return _Base_type::propagate_on_container_swap::value; }

    static constexpr bool _S_always_equal()
    { return _Base_type::is_always_equal::value; }

    static constexpr bool _S_nothrow_move()
    { return _S_propagate_on_move_assign() || _S_always_equal(); }

    template<typename _Tp>
      struct rebind
      { typedef typename _Base_type::template rebind_alloc<_Tp> other; };
# 166 "/usr/include/c++/11/ext/alloc_traits.h" 3
  };


}
# 68 "/usr/include/c++/11/bits/stl_uninitialized.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{








  template<bool _TrivialValueTypes>
    struct __uninitialized_copy
    {
      template<typename _InputIterator, typename _ForwardIterator>
        static _ForwardIterator
        __uninit_copy(_InputIterator __first, _InputIterator __last,
        _ForwardIterator __result)
        {
   _ForwardIterator __cur = __result;
   if (true)
     {
       for (; __first != __last; ++__first, (void)++__cur)
  std::_Construct(std::__addressof(*__cur), *__first);
       return __cur;
     }
   if (false)
     {
       std::_Destroy(__result, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_copy<true>
    {
      template<typename _InputIterator, typename _ForwardIterator>
        static _ForwardIterator
        __uninit_copy(_InputIterator __first, _InputIterator __last,
        _ForwardIterator __result)
        { return std::copy(__first, __last, __result); }
    };
# 123 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _InputIterator, typename _ForwardIterator>
    inline _ForwardIterator
    uninitialized_copy(_InputIterator __first, _InputIterator __last,
         _ForwardIterator __result)
    {
      typedef typename iterator_traits<_InputIterator>::value_type
 _ValueType1;
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType2;





      static_assert(is_constructible<_ValueType2, decltype(*__first)>::value,
   "result type must be constructible from value type of input range");

      typedef typename iterator_traits<_InputIterator>::reference _RefType1;
      typedef typename iterator_traits<_ForwardIterator>::reference _RefType2;


      const bool __assignable = is_assignable<_RefType2, _RefType1>::value;


      return std::__uninitialized_copy<__is_trivial(_ValueType1)
           && __is_trivial(_ValueType2)
           && __assignable>::
 __uninit_copy(__first, __last, __result);
    }



  template<bool _TrivialValueType>
    struct __uninitialized_fill
    {
      template<typename _ForwardIterator, typename _Tp>
        static void
        __uninit_fill(_ForwardIterator __first, _ForwardIterator __last,
        const _Tp& __x)
        {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __cur != __last; ++__cur)
  std::_Construct(std::__addressof(*__cur), __x);
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_fill<true>
    {
      template<typename _ForwardIterator, typename _Tp>
        static void
        __uninit_fill(_ForwardIterator __first, _ForwardIterator __last,
        const _Tp& __x)
        { std::fill(__first, __last, __x); }
    };
# 198 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _ForwardIterator, typename _Tp>
    inline void
    uninitialized_fill(_ForwardIterator __first, _ForwardIterator __last,
         const _Tp& __x)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;





      static_assert(is_constructible<_ValueType, const _Tp&>::value,
   "result type must be constructible from input type");



      const bool __assignable = is_copy_assignable<_ValueType>::value;


      std::__uninitialized_fill<__is_trivial(_ValueType) && __assignable>::
 __uninit_fill(__first, __last, __x);
    }



  template<bool _TrivialValueType>
    struct __uninitialized_fill_n
    {
      template<typename _ForwardIterator, typename _Size, typename _Tp>
        static _ForwardIterator
        __uninit_fill_n(_ForwardIterator __first, _Size __n,
   const _Tp& __x)
        {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __n > 0; --__n, (void) ++__cur)
  std::_Construct(std::__addressof(*__cur), __x);
       return __cur;
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_fill_n<true>
    {
      template<typename _ForwardIterator, typename _Size, typename _Tp>
        static _ForwardIterator
        __uninit_fill_n(_ForwardIterator __first, _Size __n,
   const _Tp& __x)
        { return std::fill_n(__first, __n, __x); }
    };
# 270 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _ForwardIterator, typename _Size, typename _Tp>
    inline _ForwardIterator
    uninitialized_fill_n(_ForwardIterator __first, _Size __n, const _Tp& __x)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;
# 287 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
      static_assert(is_constructible<_ValueType, const _Tp&>::value,
   "result type must be constructible from input type");



      constexpr bool __can_fill
 = __and_<is_integral<_Size>, is_copy_assignable<_ValueType>>::value;

      return __uninitialized_fill_n<__is_trivial(_ValueType) && __can_fill>::
 __uninit_fill_n(__first, __n, __x);
    }
# 307 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _InputIterator, typename _ForwardIterator,
    typename _Allocator>
    _ForwardIterator
    __uninitialized_copy_a(_InputIterator __first, _InputIterator __last,
      _ForwardIterator __result, _Allocator& __alloc)
    {
      _ForwardIterator __cur = __result;
      if (true)
 {
   typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
   for (; __first != __last; ++__first, (void)++__cur)
     __traits::construct(__alloc, std::__addressof(*__cur), *__first);
   return __cur;
 }
      if (false)
 {
   std::_Destroy(__result, __cur, __alloc);
   ;
 }
    }

  template<typename _InputIterator, typename _ForwardIterator, typename _Tp>
    inline _ForwardIterator
    __uninitialized_copy_a(_InputIterator __first, _InputIterator __last,
      _ForwardIterator __result, allocator<_Tp>&)
    { return std::uninitialized_copy(__first, __last, __result); }

  template<typename _InputIterator, typename _ForwardIterator,
    typename _Allocator>
    inline _ForwardIterator
    __uninitialized_move_a(_InputIterator __first, _InputIterator __last,
      _ForwardIterator __result, _Allocator& __alloc)
    {
      return std::__uninitialized_copy_a(std::make_move_iterator(__first),
      std::make_move_iterator(__last),
      __result, __alloc);
    }

  template<typename _InputIterator, typename _ForwardIterator,
    typename _Allocator>
    inline _ForwardIterator
    __uninitialized_move_if_noexcept_a(_InputIterator __first,
           _InputIterator __last,
           _ForwardIterator __result,
           _Allocator& __alloc)
    {
      return std::__uninitialized_copy_a
 (std::__make_move_if_noexcept_iterator(__first),
  std::__make_move_if_noexcept_iterator(__last), __result, __alloc);
    }

  template<typename _ForwardIterator, typename _Tp, typename _Allocator>
    void
    __uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last,
      const _Tp& __x, _Allocator& __alloc)
    {
      _ForwardIterator __cur = __first;
      if (true)
 {
   typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
   for (; __cur != __last; ++__cur)
     __traits::construct(__alloc, std::__addressof(*__cur), __x);
 }
      if (false)
 {
   std::_Destroy(__first, __cur, __alloc);
   ;
 }
    }

  template<typename _ForwardIterator, typename _Tp, typename _Tp2>
    inline void
    __uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last,
      const _Tp& __x, allocator<_Tp2>&)
    { std::uninitialized_fill(__first, __last, __x); }

  template<typename _ForwardIterator, typename _Size, typename _Tp,
    typename _Allocator>
    _ForwardIterator
    __uninitialized_fill_n_a(_ForwardIterator __first, _Size __n,
        const _Tp& __x, _Allocator& __alloc)
    {
      _ForwardIterator __cur = __first;
      if (true)
 {
   typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
   for (; __n > 0; --__n, (void) ++__cur)
     __traits::construct(__alloc, std::__addressof(*__cur), __x);
   return __cur;
 }
      if (false)
 {
   std::_Destroy(__first, __cur, __alloc);
   ;
 }
    }

  template<typename _ForwardIterator, typename _Size, typename _Tp,
    typename _Tp2>
    inline _ForwardIterator
    __uninitialized_fill_n_a(_ForwardIterator __first, _Size __n,
        const _Tp& __x, allocator<_Tp2>&)
    { return std::uninitialized_fill_n(__first, __n, __x); }
# 421 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _ForwardIterator, typename _Allocator>
    inline _ForwardIterator
    __uninitialized_copy_move(_InputIterator1 __first1,
         _InputIterator1 __last1,
         _InputIterator2 __first2,
         _InputIterator2 __last2,
         _ForwardIterator __result,
         _Allocator& __alloc)
    {
      _ForwardIterator __mid = std::__uninitialized_copy_a(__first1, __last1,
          __result,
          __alloc);
      if (true)
 {
   return std::__uninitialized_move_a(__first2, __last2, __mid, __alloc);
 }
      if (false)
 {
   std::_Destroy(__result, __mid, __alloc);
   ;
 }
    }





  template<typename _InputIterator1, typename _InputIterator2,
    typename _ForwardIterator, typename _Allocator>
    inline _ForwardIterator
    __uninitialized_move_copy(_InputIterator1 __first1,
         _InputIterator1 __last1,
         _InputIterator2 __first2,
         _InputIterator2 __last2,
         _ForwardIterator __result,
         _Allocator& __alloc)
    {
      _ForwardIterator __mid = std::__uninitialized_move_a(__first1, __last1,
          __result,
          __alloc);
      if (true)
 {
   return std::__uninitialized_copy_a(__first2, __last2, __mid, __alloc);
 }
      if (false)
 {
   std::_Destroy(__result, __mid, __alloc);
   ;
 }
    }




  template<typename _ForwardIterator, typename _Tp, typename _InputIterator,
    typename _Allocator>
    inline _ForwardIterator
    __uninitialized_fill_move(_ForwardIterator __result, _ForwardIterator __mid,
         const _Tp& __x, _InputIterator __first,
         _InputIterator __last, _Allocator& __alloc)
    {
      std::__uninitialized_fill_a(__result, __mid, __x, __alloc);
      if (true)
 {
   return std::__uninitialized_move_a(__first, __last, __mid, __alloc);
 }
      if (false)
 {
   std::_Destroy(__result, __mid, __alloc);
   ;
 }
    }




  template<typename _InputIterator, typename _ForwardIterator, typename _Tp,
    typename _Allocator>
    inline void
    __uninitialized_move_fill(_InputIterator __first1, _InputIterator __last1,
         _ForwardIterator __first2,
         _ForwardIterator __last2, const _Tp& __x,
         _Allocator& __alloc)
    {
      _ForwardIterator __mid2 = std::__uninitialized_move_a(__first1, __last1,
           __first2,
           __alloc);
      if (true)
 {
   std::__uninitialized_fill_a(__mid2, __last2, __x, __alloc);
 }
      if (false)
 {
   std::_Destroy(__first2, __mid2, __alloc);
   ;
 }
    }
# 528 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<bool _TrivialValueType>
    struct __uninitialized_default_1
    {
      template<typename _ForwardIterator>
        static void
        __uninit_default(_ForwardIterator __first, _ForwardIterator __last)
        {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __cur != __last; ++__cur)
  std::_Construct(std::__addressof(*__cur));
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_default_1<true>
    {
      template<typename _ForwardIterator>
        static void
        __uninit_default(_ForwardIterator __first, _ForwardIterator __last)
        {
   if (__first == __last)
     return;

   typename iterator_traits<_ForwardIterator>::value_type* __val
     = std::__addressof(*__first);
   std::_Construct(__val);
   if (++__first != __last)
     std::fill(__first, __last, *__val);
 }
    };

  template<bool _TrivialValueType>
    struct __uninitialized_default_n_1
    {
      template<typename _ForwardIterator, typename _Size>
        static _ForwardIterator
        __uninit_default_n(_ForwardIterator __first, _Size __n)
        {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __n > 0; --__n, (void) ++__cur)
  std::_Construct(std::__addressof(*__cur));
       return __cur;
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_default_n_1<true>
    {
      template<typename _ForwardIterator, typename _Size>
        static _ForwardIterator
        __uninit_default_n(_ForwardIterator __first, _Size __n)
        {
   if (__n > 0)
     {
       typename iterator_traits<_ForwardIterator>::value_type* __val
  = std::__addressof(*__first);
       std::_Construct(__val);
       ++__first;
       __first = std::fill_n(__first, __n - 1, *__val);
     }
   return __first;
 }
    };



  template<typename _ForwardIterator>
    inline void
    __uninitialized_default(_ForwardIterator __first,
       _ForwardIterator __last)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;

      const bool __assignable = is_copy_assignable<_ValueType>::value;

      std::__uninitialized_default_1<__is_trivial(_ValueType)
         && __assignable>::
 __uninit_default(__first, __last);
    }



  template<typename _ForwardIterator, typename _Size>
    inline _ForwardIterator
    __uninitialized_default_n(_ForwardIterator __first, _Size __n)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;

      constexpr bool __can_fill
 = __and_<is_integral<_Size>, is_copy_assignable<_ValueType>>::value;

      return __uninitialized_default_n_1<__is_trivial(_ValueType)
      && __can_fill>::
 __uninit_default_n(__first, __n);
    }





  template<typename _ForwardIterator, typename _Allocator>
    void
    __uninitialized_default_a(_ForwardIterator __first,
         _ForwardIterator __last,
         _Allocator& __alloc)
    {
      _ForwardIterator __cur = __first;
      if (true)
 {
   typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
   for (; __cur != __last; ++__cur)
     __traits::construct(__alloc, std::__addressof(*__cur));
 }
      if (false)
 {
   std::_Destroy(__first, __cur, __alloc);
   ;
 }
    }

  template<typename _ForwardIterator, typename _Tp>
    inline void
    __uninitialized_default_a(_ForwardIterator __first,
         _ForwardIterator __last,
         allocator<_Tp>&)
    { std::__uninitialized_default(__first, __last); }





  template<typename _ForwardIterator, typename _Size, typename _Allocator>
    _ForwardIterator
    __uninitialized_default_n_a(_ForwardIterator __first, _Size __n,
    _Allocator& __alloc)
    {
      _ForwardIterator __cur = __first;
      if (true)
 {
   typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
   for (; __n > 0; --__n, (void) ++__cur)
     __traits::construct(__alloc, std::__addressof(*__cur));
   return __cur;
 }
      if (false)
 {
   std::_Destroy(__first, __cur, __alloc);
   ;
 }
    }



  template<typename _ForwardIterator, typename _Size, typename _Tp>
    inline _ForwardIterator
    __uninitialized_default_n_a(_ForwardIterator __first, _Size __n,
    allocator<_Tp>&)
    { return std::__uninitialized_default_n(__first, __n); }

  template<bool _TrivialValueType>
    struct __uninitialized_default_novalue_1
    {
      template<typename _ForwardIterator>
 static void
 __uninit_default_novalue(_ForwardIterator __first,
     _ForwardIterator __last)
 {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __cur != __last; ++__cur)
  std::_Construct_novalue(std::__addressof(*__cur));
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_default_novalue_1<true>
    {
      template<typename _ForwardIterator>
        static void
        __uninit_default_novalue(_ForwardIterator __first,
     _ForwardIterator __last)
 {
 }
    };

  template<bool _TrivialValueType>
    struct __uninitialized_default_novalue_n_1
    {
      template<typename _ForwardIterator, typename _Size>
 static _ForwardIterator
 __uninit_default_novalue_n(_ForwardIterator __first, _Size __n)
 {
   _ForwardIterator __cur = __first;
   if (true)
     {
       for (; __n > 0; --__n, (void) ++__cur)
  std::_Construct_novalue(std::__addressof(*__cur));
       return __cur;
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_default_novalue_n_1<true>
    {
      template<typename _ForwardIterator, typename _Size>
 static _ForwardIterator
 __uninit_default_novalue_n(_ForwardIterator __first, _Size __n)
 { return std::next(__first, __n); }
    };



  template<typename _ForwardIterator>
    inline void
    __uninitialized_default_novalue(_ForwardIterator __first,
        _ForwardIterator __last)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;

      std::__uninitialized_default_novalue_1<
 is_trivially_default_constructible<_ValueType>::value>::
 __uninit_default_novalue(__first, __last);
    }



  template<typename _ForwardIterator, typename _Size>
    inline _ForwardIterator
    __uninitialized_default_novalue_n(_ForwardIterator __first, _Size __n)
    {
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;

      return __uninitialized_default_novalue_n_1<
 is_trivially_default_constructible<_ValueType>::value>::
 __uninit_default_novalue_n(__first, __n);
    }

  template<typename _InputIterator, typename _Size,
    typename _ForwardIterator>
    _ForwardIterator
    __uninitialized_copy_n(_InputIterator __first, _Size __n,
      _ForwardIterator __result, input_iterator_tag)
    {
      _ForwardIterator __cur = __result;
      if (true)
 {
   for (; __n > 0; --__n, (void) ++__first, ++__cur)
     std::_Construct(std::__addressof(*__cur), *__first);
   return __cur;
 }
      if (false)
 {
   std::_Destroy(__result, __cur);
   ;
 }
    }

  template<typename _RandomAccessIterator, typename _Size,
    typename _ForwardIterator>
    inline _ForwardIterator
    __uninitialized_copy_n(_RandomAccessIterator __first, _Size __n,
      _ForwardIterator __result,
      random_access_iterator_tag)
    { return std::uninitialized_copy(__first, __first + __n, __result); }

  template<typename _InputIterator, typename _Size,
    typename _ForwardIterator>
    pair<_InputIterator, _ForwardIterator>
    __uninitialized_copy_n_pair(_InputIterator __first, _Size __n,
      _ForwardIterator __result, input_iterator_tag)
    {
      _ForwardIterator __cur = __result;
      if (true)
 {
   for (; __n > 0; --__n, (void) ++__first, ++__cur)
     std::_Construct(std::__addressof(*__cur), *__first);
   return {__first, __cur};
 }
      if (false)
 {
   std::_Destroy(__result, __cur);
   ;
 }
    }

  template<typename _RandomAccessIterator, typename _Size,
    typename _ForwardIterator>
    inline pair<_RandomAccessIterator, _ForwardIterator>
    __uninitialized_copy_n_pair(_RandomAccessIterator __first, _Size __n,
      _ForwardIterator __result,
      random_access_iterator_tag)
    {
      auto __second_res = uninitialized_copy(__first, __first + __n, __result);
      auto __first_res = std::next(__first, __n);
      return {__first_res, __second_res};
    }
# 869 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _InputIterator, typename _Size, typename _ForwardIterator>
    inline _ForwardIterator
    uninitialized_copy_n(_InputIterator __first, _Size __n,
    _ForwardIterator __result)
    { return std::__uninitialized_copy_n(__first, __n, __result,
      std::__iterator_category(__first)); }


  template<typename _InputIterator, typename _Size, typename _ForwardIterator>
    inline pair<_InputIterator, _ForwardIterator>
    __uninitialized_copy_n_pair(_InputIterator __first, _Size __n,
         _ForwardIterator __result)
    {
      return
 std::__uninitialized_copy_n_pair(__first, __n, __result,
      std::__iterator_category(__first));
    }
# 983 "/usr/include/c++/11/bits/stl_uninitialized.h" 3
  template<typename _Tp, typename _Up, typename _Allocator>
    inline void
    __relocate_object_a(_Tp* __restrict __dest, _Up* __restrict __orig,
   _Allocator& __alloc)
    noexcept(noexcept(std::allocator_traits<_Allocator>::construct(__alloc,
    __dest, std::move(*__orig)))
      && noexcept(std::allocator_traits<_Allocator>::destroy(
       __alloc, std::__addressof(*__orig))))
    {
      typedef std::allocator_traits<_Allocator> __traits;
      __traits::construct(__alloc, __dest, std::move(*__orig));
      __traits::destroy(__alloc, std::__addressof(*__orig));
    }



  template<typename _Tp, typename = void>
    struct __is_bitwise_relocatable
    : is_trivial<_Tp> { };

  template <typename _Tp, typename _Up>
    inline __enable_if_t<std::__is_bitwise_relocatable<_Tp>::value, _Tp*>
    __relocate_a_1(_Tp* __first, _Tp* __last,
     _Tp* __result, allocator<_Up>&) noexcept
    {
      ptrdiff_t __count = __last - __first;
      if (__count > 0)
 __builtin_memmove(__result, __first, __count * sizeof(_Tp));
      return __result + __count;
    }

  template <typename _InputIterator, typename _ForwardIterator,
     typename _Allocator>
    inline _ForwardIterator
    __relocate_a_1(_InputIterator __first, _InputIterator __last,
     _ForwardIterator __result, _Allocator& __alloc)
    noexcept(noexcept(std::__relocate_object_a(std::addressof(*__result),
            std::addressof(*__first),
            __alloc)))
    {
      typedef typename iterator_traits<_InputIterator>::value_type
 _ValueType;
      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType2;
      static_assert(std::is_same<_ValueType, _ValueType2>::value,
   "relocation is only possible for values of the same type");
      _ForwardIterator __cur = __result;
      for (; __first != __last; ++__first, (void)++__cur)
 std::__relocate_object_a(std::__addressof(*__cur),
     std::__addressof(*__first), __alloc);
      return __cur;
    }

  template <typename _InputIterator, typename _ForwardIterator,
     typename _Allocator>
    inline _ForwardIterator
    __relocate_a(_InputIterator __first, _InputIterator __last,
   _ForwardIterator __result, _Allocator& __alloc)
    noexcept(noexcept(__relocate_a_1(std::__niter_base(__first),
         std::__niter_base(__last),
         std::__niter_base(__result), __alloc)))
    {
      return __relocate_a_1(std::__niter_base(__first),
       std::__niter_base(__last),
       std::__niter_base(__result), __alloc);
    }







}
# 67 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/stl_tempbuf.h" 1 3
# 62 "/usr/include/c++/11/bits/stl_tempbuf.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{


  namespace __detail
  {
    template<typename _Tp>
      inline void
      __return_temporary_buffer(_Tp* __p,
    size_t __len __attribute__((__unused__)))
      {

 ::operator delete(__p, __len * sizeof(_Tp));



      }
  }
# 98 "/usr/include/c++/11/bits/stl_tempbuf.h" 3
  template<typename _Tp>
    pair<_Tp*, ptrdiff_t>
    get_temporary_buffer(ptrdiff_t __len) noexcept
    {
      const ptrdiff_t __max =
 __gnu_cxx::__numeric_traits<ptrdiff_t>::__max / sizeof(_Tp);
      if (__len > __max)
 __len = __max;

      while (__len > 0)
 {
   _Tp* __tmp = static_cast<_Tp*>(::operator new(__len * sizeof(_Tp),
       std::nothrow));
   if (__tmp != 0)
     return std::pair<_Tp*, ptrdiff_t>(__tmp, __len);
   __len = __len == 1 ? 0 : ((__len + 1) / 2);
 }
      return std::pair<_Tp*, ptrdiff_t>(static_cast<_Tp*>(0), 0);
    }
# 125 "/usr/include/c++/11/bits/stl_tempbuf.h" 3
  template<typename _Tp>
    inline void
    return_temporary_buffer(_Tp* __p)
    { ::operator delete(__p); }






  template<typename _ForwardIterator, typename _Tp>
    class _Temporary_buffer
    {

     

    public:
      typedef _Tp value_type;
      typedef value_type* pointer;
      typedef pointer iterator;
      typedef ptrdiff_t size_type;

    protected:
      size_type _M_original_len;
      size_type _M_len;
      pointer _M_buffer;

    public:

      size_type
      size() const
      { return _M_len; }


      size_type
      requested_size() const
      { return _M_original_len; }


      iterator
      begin()
      { return _M_buffer; }


      iterator
      end()
      { return _M_buffer + _M_len; }





      _Temporary_buffer(_ForwardIterator __seed, size_type __original_len);

      ~_Temporary_buffer()
      {
 std::_Destroy(_M_buffer, _M_buffer + _M_len);
 std::__detail::__return_temporary_buffer(_M_buffer, _M_len);
      }

    private:

      _Temporary_buffer(const _Temporary_buffer&);

      void
      operator=(const _Temporary_buffer&);
    };


  template<bool>
    struct __uninitialized_construct_buf_dispatch
    {
      template<typename _Pointer, typename _ForwardIterator>
        static void
        __ucr(_Pointer __first, _Pointer __last,
       _ForwardIterator __seed)
        {
   if (__first == __last)
     return;

   _Pointer __cur = __first;
   if (true)
     {
       std::_Construct(std::__addressof(*__first),
         std::move(*__seed));
       _Pointer __prev = __cur;
       ++__cur;
       for(; __cur != __last; ++__cur, ++__prev)
  std::_Construct(std::__addressof(*__cur),
    std::move(*__prev));
       *__seed = std::move(*__prev);
     }
   if (false)
     {
       std::_Destroy(__first, __cur);
       ;
     }
 }
    };

  template<>
    struct __uninitialized_construct_buf_dispatch<true>
    {
      template<typename _Pointer, typename _ForwardIterator>
        static void
        __ucr(_Pointer, _Pointer, _ForwardIterator) { }
    };
# 243 "/usr/include/c++/11/bits/stl_tempbuf.h" 3
  template<typename _Pointer, typename _ForwardIterator>
    inline void
    __uninitialized_construct_buf(_Pointer __first, _Pointer __last,
      _ForwardIterator __seed)
    {
      typedef typename std::iterator_traits<_Pointer>::value_type
 _ValueType;

      std::__uninitialized_construct_buf_dispatch<
        __has_trivial_constructor(_ValueType)>::
   __ucr(__first, __last, __seed);
    }

  template<typename _ForwardIterator, typename _Tp>
    _Temporary_buffer<_ForwardIterator, _Tp>::
    _Temporary_buffer(_ForwardIterator __seed, size_type __original_len)
    : _M_original_len(__original_len), _M_len(0), _M_buffer(0)
    {
      std::pair<pointer, size_type> __p(
  std::get_temporary_buffer<value_type>(_M_original_len));

      if (__p.first)
 {
   if (true)
     {
       std::__uninitialized_construct_buf(__p.first, __p.first + __p.second,
       __seed);
       _M_buffer = __p.first;
       _M_len = __p.second;
     }
   if (false)
     {
       std::__detail::__return_temporary_buffer(__p.first, __p.second);
       ;
     }
 }
    }


}
# 68 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/stl_raw_storage_iter.h" 1 3
# 59 "/usr/include/c++/11/bits/stl_raw_storage_iter.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{






  template <class _OutputIterator, class _Tp>
    class raw_storage_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {
    protected:
      _OutputIterator _M_iter;

    public:
      explicit
      raw_storage_iterator(_OutputIterator __x)
      : _M_iter(__x) {}

      raw_storage_iterator&
      operator*() { return *this; }

      raw_storage_iterator&
      operator=(const _Tp& __element)
      {
 std::_Construct(std::__addressof(*_M_iter), __element);
 return *this;
      }




      raw_storage_iterator&
      operator=(_Tp&& __element)
      {
 std::_Construct(std::__addressof(*_M_iter), std::move(__element));
 return *this;
      }


      raw_storage_iterator&
      operator++()
      {
 ++_M_iter;
 return *this;
      }

      raw_storage_iterator
      operator++(int)
      {
 raw_storage_iterator __tmp = *this;
 ++_M_iter;
 return __tmp;
      }



      _OutputIterator base() const { return _M_iter; }
    };


}
# 69 "/usr/include/c++/11/memory" 2 3



# 1 "/usr/include/c++/11/bits/align.h" 1 3
# 35 "/usr/include/c++/11/bits/align.h" 3
# 1 "/usr/include/c++/11/bit" 1 3
# 32 "/usr/include/c++/11/bit" 3
       
# 33 "/usr/include/c++/11/bit" 3
# 36 "/usr/include/c++/11/bits/align.h" 2 3


namespace std __attribute__ ((__visibility__ ("default")))
{

# 60 "/usr/include/c++/11/bits/align.h" 3
inline void*
align(size_t __align, size_t __size, void*& __ptr, size_t& __space) noexcept
{
  if (__space < __size)
    return nullptr;
  const auto __intptr = reinterpret_cast<uintptr_t>(__ptr);
  const auto __aligned = (__intptr - 1u + __align) & -__align;
  const auto __diff = __aligned - __intptr;
  if (__diff > (__space - __size))
    return nullptr;
  else
    {
      __space -= __diff;
      return __ptr = reinterpret_cast<void*>(__aligned);
    }
}
# 107 "/usr/include/c++/11/bits/align.h" 3

}
# 73 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/uses_allocator.h" 1 3
# 35 "/usr/include/c++/11/bits/uses_allocator.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{



  struct __erased_type { };




  template<typename _Alloc, typename _Tp>
    using __is_erased_or_convertible
      = __or_<is_convertible<_Alloc, _Tp>, is_same<_Tp, __erased_type>>;


  struct allocator_arg_t { explicit allocator_arg_t() = default; };

  constexpr allocator_arg_t allocator_arg =
    allocator_arg_t();

  template<typename _Tp, typename _Alloc, typename = __void_t<>>
    struct __uses_allocator_helper
    : false_type { };

  template<typename _Tp, typename _Alloc>
    struct __uses_allocator_helper<_Tp, _Alloc,
       __void_t<typename _Tp::allocator_type>>
    : __is_erased_or_convertible<_Alloc, typename _Tp::allocator_type>::type
    { };


  template<typename _Tp, typename _Alloc>
    struct uses_allocator
    : __uses_allocator_helper<_Tp, _Alloc>::type
    { };

  struct __uses_alloc_base { };

  struct __uses_alloc0 : __uses_alloc_base
  {
    struct _Sink { void operator=(const void*) { } } _M_a;
  };

  template<typename _Alloc>
    struct __uses_alloc1 : __uses_alloc_base { const _Alloc* _M_a; };

  template<typename _Alloc>
    struct __uses_alloc2 : __uses_alloc_base { const _Alloc* _M_a; };

  template<bool, typename _Tp, typename _Alloc, typename... _Args>
    struct __uses_alloc;

  template<typename _Tp, typename _Alloc, typename... _Args>
    struct __uses_alloc<true, _Tp, _Alloc, _Args...>
    : conditional<
        is_constructible<_Tp, allocator_arg_t, const _Alloc&, _Args...>::value,
        __uses_alloc1<_Alloc>,
        __uses_alloc2<_Alloc>>::type
    {


      static_assert(__or_<
   is_constructible<_Tp, allocator_arg_t, const _Alloc&, _Args...>,
   is_constructible<_Tp, _Args..., const _Alloc&>>::value,
   "construction with an allocator must be possible"
   " if uses_allocator is true");
    };

  template<typename _Tp, typename _Alloc, typename... _Args>
    struct __uses_alloc<false, _Tp, _Alloc, _Args...>
    : __uses_alloc0 { };

  template<typename _Tp, typename _Alloc, typename... _Args>
    using __uses_alloc_t =
      __uses_alloc<uses_allocator<_Tp, _Alloc>::value, _Tp, _Alloc, _Args...>;

  template<typename _Tp, typename _Alloc, typename... _Args>
   
    inline __uses_alloc_t<_Tp, _Alloc, _Args...>
    __use_alloc(const _Alloc& __a)
    {
      __uses_alloc_t<_Tp, _Alloc, _Args...> __ret;
      __ret._M_a = std::__addressof(__a);
      return __ret;
    }

  template<typename _Tp, typename _Alloc, typename... _Args>
    void
    __use_alloc(const _Alloc&&) = delete;







  template<template<typename...> class _Predicate,
    typename _Tp, typename _Alloc, typename... _Args>
    struct __is_uses_allocator_predicate
    : conditional<uses_allocator<_Tp, _Alloc>::value,
      __or_<_Predicate<_Tp, allocator_arg_t, _Alloc, _Args...>,
     _Predicate<_Tp, _Args..., _Alloc>>,
      _Predicate<_Tp, _Args...>>::type { };

  template<typename _Tp, typename _Alloc, typename... _Args>
    struct __is_uses_allocator_constructible
    : __is_uses_allocator_predicate<is_constructible, _Tp, _Alloc, _Args...>
    { };







  template<typename _Tp, typename _Alloc, typename... _Args>
    struct __is_nothrow_uses_allocator_constructible
    : __is_uses_allocator_predicate<is_nothrow_constructible,
        _Tp, _Alloc, _Args...>
    { };
# 164 "/usr/include/c++/11/bits/uses_allocator.h" 3
  template<typename _Tp, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc0 __a, _Tp* __ptr,
      _Args&&... __args)
    { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)...); }

  template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc1<_Alloc> __a, _Tp* __ptr,
      _Args&&... __args)
    {
      ::new ((void*)__ptr) _Tp(allocator_arg, *__a._M_a,
          std::forward<_Args>(__args)...);
    }

  template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct_impl(__uses_alloc2<_Alloc> __a, _Tp* __ptr,
      _Args&&... __args)
    { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)..., *__a._M_a); }

  template<typename _Tp, typename _Alloc, typename... _Args>
    void __uses_allocator_construct(const _Alloc& __a, _Tp* __ptr,
        _Args&&... __args)
    {
      std::__uses_allocator_construct_impl(
   std::__use_alloc<_Tp, _Alloc, _Args...>(__a), __ptr,
   std::forward<_Args>(__args)...);
    }


}
# 74 "/usr/include/c++/11/memory" 2 3


# 1 "/usr/include/c++/11/bits/unique_ptr.h" 1 3
# 36 "/usr/include/c++/11/bits/unique_ptr.h" 3
# 1 "/usr/include/c++/11/utility" 1 3
# 58 "/usr/include/c++/11/utility" 3
       
# 59 "/usr/include/c++/11/utility" 3
# 69 "/usr/include/c++/11/utility" 3
# 1 "/usr/include/c++/11/bits/stl_relops.h" 1 3
# 67 "/usr/include/c++/11/bits/stl_relops.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{


  namespace rel_ops
  {
# 85 "/usr/include/c++/11/bits/stl_relops.h" 3
    template <class _Tp>
      inline bool
      operator!=(const _Tp& __x, const _Tp& __y)
      { return !(__x == __y); }
# 98 "/usr/include/c++/11/bits/stl_relops.h" 3
    template <class _Tp>
      inline bool
      operator>(const _Tp& __x, const _Tp& __y)
      { return __y < __x; }
# 111 "/usr/include/c++/11/bits/stl_relops.h" 3
    template <class _Tp>
      inline bool
      operator<=(const _Tp& __x, const _Tp& __y)
      { return !(__y < __x); }
# 124 "/usr/include/c++/11/bits/stl_relops.h" 3
    template <class _Tp>
      inline bool
      operator>=(const _Tp& __x, const _Tp& __y)
      { return !(__x < __y); }
  }


}
# 70 "/usr/include/c++/11/utility" 2 3






# 1 "/usr/include/c++/11/initializer_list" 1 3
# 33 "/usr/include/c++/11/initializer_list" 3
       
# 34 "/usr/include/c++/11/initializer_list" 3





#pragma GCC visibility push(default)



namespace std
{

  template<class _E>
    class initializer_list
    {
    public:
      typedef _E value_type;
      typedef const _E& reference;
      typedef const _E& const_reference;
      typedef size_t size_type;
      typedef const _E* iterator;
      typedef const _E* const_iterator;

    private:
      iterator _M_array;
      size_type _M_len;


      constexpr initializer_list(const_iterator __a, size_type __l)
      : _M_array(__a), _M_len(__l) { }

    public:
      constexpr initializer_list() noexcept
      : _M_array(0), _M_len(0) { }


      constexpr size_type
      size() const noexcept { return _M_len; }


      constexpr const_iterator
      begin() const noexcept { return _M_array; }


      constexpr const_iterator
      end() const noexcept { return begin() + size(); }
    };







  template<class _Tp>
    constexpr const _Tp*
    begin(initializer_list<_Tp> __ils) noexcept
    { return __ils.begin(); }







  template<class _Tp>
    constexpr const _Tp*
    end(initializer_list<_Tp> __ils) noexcept
    { return __ils.end(); }
}

#pragma GCC visibility pop
# 77 "/usr/include/c++/11/utility" 2 3





namespace std __attribute__ ((__visibility__ ("default")))
{



  template<typename _Tp>
    struct tuple_size;





  template<typename _Tp,
    typename _Up = typename remove_cv<_Tp>::type,
    typename = typename enable_if<is_same<_Tp, _Up>::value>::type,
    size_t = tuple_size<_Tp>::value>
    using __enable_if_has_tuple_size = _Tp;

  template<typename _Tp>
    struct tuple_size<const __enable_if_has_tuple_size<_Tp>>
    : public tuple_size<_Tp> { };

  template<typename _Tp>
    struct tuple_size<volatile __enable_if_has_tuple_size<_Tp>>
    : public tuple_size<_Tp> { };

  template<typename _Tp>
    struct tuple_size<const volatile __enable_if_has_tuple_size<_Tp>>
    : public tuple_size<_Tp> { };


  template<size_t __i, typename _Tp>
    struct tuple_element;


  template<size_t __i, typename _Tp>
    using __tuple_element_t = typename tuple_element<__i, _Tp>::type;

  template<size_t __i, typename _Tp>
    struct tuple_element<__i, const _Tp>
    {
      typedef typename add_const<__tuple_element_t<__i, _Tp>>::type type;
    };

  template<size_t __i, typename _Tp>
    struct tuple_element<__i, volatile _Tp>
    {
      typedef typename add_volatile<__tuple_element_t<__i, _Tp>>::type type;
    };

  template<size_t __i, typename _Tp>
    struct tuple_element<__i, const volatile _Tp>
    {
      typedef typename add_cv<__tuple_element_t<__i, _Tp>>::type type;
    };
# 151 "/usr/include/c++/11/utility" 3
  template<typename _T1, typename _T2>
    struct __is_tuple_like_impl<pair<_T1, _T2>> : true_type
    { };


  template<class _Tp1, class _Tp2>
    struct tuple_size<pair<_Tp1, _Tp2>>
    : public integral_constant<size_t, 2> { };


  template<class _Tp1, class _Tp2>
    struct tuple_element<0, pair<_Tp1, _Tp2>>
    { typedef _Tp1 type; };


  template<class _Tp1, class _Tp2>
    struct tuple_element<1, pair<_Tp1, _Tp2>>
    { typedef _Tp2 type; };

  template<size_t _Int>
    struct __pair_get;

  template<>
    struct __pair_get<0>
    {
      template<typename _Tp1, typename _Tp2>
 static constexpr _Tp1&
 __get(pair<_Tp1, _Tp2>& __pair) noexcept
 { return __pair.first; }

      template<typename _Tp1, typename _Tp2>
 static constexpr _Tp1&&
 __move_get(pair<_Tp1, _Tp2>&& __pair) noexcept
 { return std::forward<_Tp1>(__pair.first); }

      template<typename _Tp1, typename _Tp2>
 static constexpr const _Tp1&
 __const_get(const pair<_Tp1, _Tp2>& __pair) noexcept
 { return __pair.first; }

      template<typename _Tp1, typename _Tp2>
 static constexpr const _Tp1&&
 __const_move_get(const pair<_Tp1, _Tp2>&& __pair) noexcept
 { return std::forward<const _Tp1>(__pair.first); }
    };

  template<>
    struct __pair_get<1>
    {
      template<typename _Tp1, typename _Tp2>
 static constexpr _Tp2&
 __get(pair<_Tp1, _Tp2>& __pair) noexcept
 { return __pair.second; }

      template<typename _Tp1, typename _Tp2>
 static constexpr _Tp2&&
 __move_get(pair<_Tp1, _Tp2>&& __pair) noexcept
 { return std::forward<_Tp2>(__pair.second); }

      template<typename _Tp1, typename _Tp2>
 static constexpr const _Tp2&
 __const_get(const pair<_Tp1, _Tp2>& __pair) noexcept
 { return __pair.second; }

      template<typename _Tp1, typename _Tp2>
 static constexpr const _Tp2&&
 __const_move_get(const pair<_Tp1, _Tp2>&& __pair) noexcept
 { return std::forward<const _Tp2>(__pair.second); }
    };

  template<size_t _Int, class _Tp1, class _Tp2>
    constexpr typename tuple_element<_Int, pair<_Tp1, _Tp2>>::type&
    get(pair<_Tp1, _Tp2>& __in) noexcept
    { return __pair_get<_Int>::__get(__in); }

  template<size_t _Int, class _Tp1, class _Tp2>
    constexpr typename tuple_element<_Int, pair<_Tp1, _Tp2>>::type&&
    get(pair<_Tp1, _Tp2>&& __in) noexcept
    { return __pair_get<_Int>::__move_get(std::move(__in)); }

  template<size_t _Int, class _Tp1, class _Tp2>
    constexpr const typename tuple_element<_Int, pair<_Tp1, _Tp2>>::type&
    get(const pair<_Tp1, _Tp2>& __in) noexcept
    { return __pair_get<_Int>::__const_get(__in); }

  template<size_t _Int, class _Tp1, class _Tp2>
    constexpr const typename tuple_element<_Int, pair<_Tp1, _Tp2>>::type&&
    get(const pair<_Tp1, _Tp2>&& __in) noexcept
    { return __pair_get<_Int>::__const_move_get(std::move(__in)); }
# 298 "/usr/include/c++/11/utility" 3
  template<size_t... _Indexes> struct _Index_tuple { };


  template<size_t _Num>
    struct _Build_index_tuple
    {
# 312 "/usr/include/c++/11/utility" 3
      using __type = _Index_tuple<__integer_pack(_Num)...>;

    };
# 467 "/usr/include/c++/11/utility" 3

}
# 37 "/usr/include/c++/11/bits/unique_ptr.h" 2 3
# 1 "/usr/include/c++/11/tuple" 1 3
# 32 "/usr/include/c++/11/tuple" 3
       
# 33 "/usr/include/c++/11/tuple" 3






# 1 "/usr/include/c++/11/array" 1 3
# 32 "/usr/include/c++/11/array" 3
       
# 33 "/usr/include/c++/11/array" 3
# 41 "/usr/include/c++/11/array" 3
# 1 "/usr/include/c++/11/bits/range_access.h" 1 3
# 33 "/usr/include/c++/11/bits/range_access.h" 3
       
# 34 "/usr/include/c++/11/bits/range_access.h" 3





namespace std __attribute__ ((__visibility__ ("default")))
{







  template<typename _Container>
    inline auto
    begin(_Container& __cont) -> decltype(__cont.begin())
    { return __cont.begin(); }






  template<typename _Container>
    inline auto
    begin(const _Container& __cont) -> decltype(__cont.begin())
    { return __cont.begin(); }






  template<typename _Container>
    inline auto
    end(_Container& __cont) -> decltype(__cont.end())
    { return __cont.end(); }






  template<typename _Container>
    inline auto
    end(const _Container& __cont) -> decltype(__cont.end())
    { return __cont.end(); }





  template<typename _Tp, size_t _Nm>
    inline _Tp*
    begin(_Tp (&__arr)[_Nm])
    { return __arr; }






  template<typename _Tp, size_t _Nm>
    inline _Tp*
    end(_Tp (&__arr)[_Nm])
    { return __arr + _Nm; }
# 340 "/usr/include/c++/11/bits/range_access.h" 3

}
# 42 "/usr/include/c++/11/array" 2 3


namespace std __attribute__ ((__visibility__ ("default")))
{


  template<typename _Tp, std::size_t _Nm>
    struct __array_traits
    {
      typedef _Tp _Type[_Nm];
      typedef __is_swappable<_Tp> _Is_swappable;
      typedef __is_nothrow_swappable<_Tp> _Is_nothrow_swappable;

      static constexpr _Tp&
      _S_ref(const _Type& __t, std::size_t __n) noexcept
      { return const_cast<_Tp&>(__t[__n]); }

      static constexpr _Tp*
      _S_ptr(const _Type& __t) noexcept
      { return const_cast<_Tp*>(__t); }
    };

 template<typename _Tp>
   struct __array_traits<_Tp, 0>
   {
     struct _Type { };
     typedef true_type _Is_swappable;
     typedef true_type _Is_nothrow_swappable;

     static constexpr _Tp&
     _S_ref(const _Type&, std::size_t) noexcept
     { return *static_cast<_Tp*>(nullptr); }

     static constexpr _Tp*
     _S_ptr(const _Type&) noexcept
     { return nullptr; }
   };
# 94 "/usr/include/c++/11/array" 3
  template<typename _Tp, std::size_t _Nm>
    struct array
    {
      typedef _Tp value_type;
      typedef value_type* pointer;
      typedef const value_type* const_pointer;
      typedef value_type& reference;
      typedef const value_type& const_reference;
      typedef value_type* iterator;
      typedef const value_type* const_iterator;
      typedef std::size_t size_type;
      typedef std::ptrdiff_t difference_type;
      typedef std::reverse_iterator<iterator> reverse_iterator;
      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;


      typedef __array_traits<_Tp, _Nm> _AT_Type;
      typename _AT_Type::_Type _M_elems;




      void
      fill(const value_type& __u)
      { std::fill_n(begin(), size(), __u); }

      void
      swap(array& __other)
      noexcept(_AT_Type::_Is_nothrow_swappable::value)
      { std::swap_ranges(begin(), end(), __other.begin()); }


      iterator
      begin() noexcept
      { return iterator(data()); }

      const_iterator
      begin() const noexcept
      { return const_iterator(data()); }

      iterator
      end() noexcept
      { return iterator(data() + _Nm); }

      const_iterator
      end() const noexcept
      { return const_iterator(data() + _Nm); }

      reverse_iterator
      rbegin() noexcept
      { return reverse_iterator(end()); }

      const_reverse_iterator
      rbegin() const noexcept
      { return const_reverse_iterator(end()); }

      reverse_iterator
      rend() noexcept
      { return reverse_iterator(begin()); }

      const_reverse_iterator
      rend() const noexcept
      { return const_reverse_iterator(begin()); }

      const_iterator
      cbegin() const noexcept
      { return const_iterator(data()); }

      const_iterator
      cend() const noexcept
      { return const_iterator(data() + _Nm); }

      const_reverse_iterator
      crbegin() const noexcept
      { return const_reverse_iterator(end()); }

      const_reverse_iterator
      crend() const noexcept
      { return const_reverse_iterator(begin()); }


      constexpr size_type
      size() const noexcept { return _Nm; }

      constexpr size_type
      max_size() const noexcept { return _Nm; }

      constexpr bool
      empty() const noexcept { return size() == 0; }


      reference
      operator[](size_type __n) noexcept
      {
 do { { if (__builtin_expect(!bool(__n < this->size()), false)) std::__replacement_assert("/usr/include/c++/11/array", 188, __PRETTY_FUNCTION__, "__n < this->size()"); } } while (false);
 return _AT_Type::_S_ref(_M_elems, __n);
      }

      constexpr const_reference
      operator[](size_type __n) const noexcept
      {



 return _AT_Type::_S_ref(_M_elems, __n);
      }

      reference
      at(size_type __n)
      {
 if (__n >= _Nm)
   std::__throw_out_of_range_fmt(("array::at: __n (which is %zu) " ">= _Nm (which is %zu)")
                                 ,
     __n, _Nm);
 return _AT_Type::_S_ref(_M_elems, __n);
      }

      constexpr const_reference
      at(size_type __n) const
      {


 return __n < _Nm ? _AT_Type::_S_ref(_M_elems, __n)
   : (std::__throw_out_of_range_fmt(("array::at: __n (which is %zu) " ">= _Nm (which is %zu)")
                                    ,
        __n, _Nm),
      _AT_Type::_S_ref(_M_elems, 0));
      }

      reference
      front() noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/array", 226, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return *begin();
      }

      constexpr const_reference
      front() const noexcept
      {



 return _AT_Type::_S_ref(_M_elems, 0);
      }

      reference
      back() noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/array", 242, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return _Nm ? *(end() - 1) : *end();
      }

      constexpr const_reference
      back() const noexcept
      {



 return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
             : _AT_Type::_S_ref(_M_elems, 0);
      }

      pointer
      data() noexcept
      { return _AT_Type::_S_ptr(_M_elems); }

      const_pointer
      data() const noexcept
      { return _AT_Type::_S_ptr(_M_elems); }
    };
# 273 "/usr/include/c++/11/array" 3
  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
    { return std::equal(__one.begin(), __one.end(), __two.begin()); }
# 302 "/usr/include/c++/11/array" 3
  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
    { return !(__one == __two); }

  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
    {
      return std::lexicographical_compare(__a.begin(), __a.end(),
       __b.begin(), __b.end());
    }

  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
    { return __two < __one; }

  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
    { return !(__one > __two); }

  template<typename _Tp, std::size_t _Nm>
   
    inline bool
    operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
    { return !(__one < __two); }



  template<typename _Tp, std::size_t _Nm>
   
    inline






    void

    swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
    noexcept(noexcept(__one.swap(__two)))
    { __one.swap(__two); }
# 359 "/usr/include/c++/11/array" 3
  template<std::size_t _Int, typename _Tp, std::size_t _Nm>
    constexpr _Tp&
    get(array<_Tp, _Nm>& __arr) noexcept
    {
      static_assert(_Int < _Nm, "array index is within bounds");
      return __array_traits<_Tp, _Nm>::_S_ref(__arr._M_elems, _Int);
    }

  template<std::size_t _Int, typename _Tp, std::size_t _Nm>
    constexpr _Tp&&
    get(array<_Tp, _Nm>&& __arr) noexcept
    {
      static_assert(_Int < _Nm, "array index is within bounds");
      return std::move(std::get<_Int>(__arr));
    }

  template<std::size_t _Int, typename _Tp, std::size_t _Nm>
    constexpr const _Tp&
    get(const array<_Tp, _Nm>& __arr) noexcept
    {
      static_assert(_Int < _Nm, "array index is within bounds");
      return __array_traits<_Tp, _Nm>::_S_ref(__arr._M_elems, _Int);
    }

  template<std::size_t _Int, typename _Tp, std::size_t _Nm>
    constexpr const _Tp&&
    get(const array<_Tp, _Nm>&& __arr) noexcept
    {
      static_assert(_Int < _Nm, "array index is within bounds");
      return std::move(std::get<_Int>(__arr));
    }
# 432 "/usr/include/c++/11/array" 3
  template<typename _Tp>
    struct tuple_size;


  template<typename _Tp, std::size_t _Nm>
    struct tuple_size<array<_Tp, _Nm>>
    : public integral_constant<std::size_t, _Nm> { };


  template<std::size_t _Int, typename _Tp>
    struct tuple_element;


  template<std::size_t _Int, typename _Tp, std::size_t _Nm>
    struct tuple_element<_Int, array<_Tp, _Nm>>
    {
      static_assert(_Int < _Nm, "index is out of bounds");
      typedef _Tp type;
    };

  template<typename _Tp, std::size_t _Nm>
    struct __is_tuple_like_impl<array<_Tp, _Nm>> : true_type
    { };


}
# 40 "/usr/include/c++/11/tuple" 2 3

# 1 "/usr/include/c++/11/bits/invoke.h" 1 3
# 33 "/usr/include/c++/11/bits/invoke.h" 3
       
# 34 "/usr/include/c++/11/bits/invoke.h" 3







namespace std __attribute__ ((__visibility__ ("default")))
{

# 52 "/usr/include/c++/11/bits/invoke.h" 3
  template<typename _Tp, typename _Up = typename __inv_unwrap<_Tp>::type>
    constexpr _Up&&
    __invfwd(typename remove_reference<_Tp>::type& __t) noexcept
    { return static_cast<_Up&&>(__t); }

  template<typename _Res, typename _Fn, typename... _Args>
    constexpr _Res
    __invoke_impl(__invoke_other, _Fn&& __f, _Args&&... __args)
    { return std::forward<_Fn>(__f)(std::forward<_Args>(__args)...); }

  template<typename _Res, typename _MemFun, typename _Tp, typename... _Args>
    constexpr _Res
    __invoke_impl(__invoke_memfun_ref, _MemFun&& __f, _Tp&& __t,
    _Args&&... __args)
    { return (__invfwd<_Tp>(__t).*__f)(std::forward<_Args>(__args)...); }

  template<typename _Res, typename _MemFun, typename _Tp, typename... _Args>
    constexpr _Res
    __invoke_impl(__invoke_memfun_deref, _MemFun&& __f, _Tp&& __t,
    _Args&&... __args)
    {
      return ((*std::forward<_Tp>(__t)).*__f)(std::forward<_Args>(__args)...);
    }

  template<typename _Res, typename _MemPtr, typename _Tp>
    constexpr _Res
    __invoke_impl(__invoke_memobj_ref, _MemPtr&& __f, _Tp&& __t)
    { return __invfwd<_Tp>(__t).*__f; }

  template<typename _Res, typename _MemPtr, typename _Tp>
    constexpr _Res
    __invoke_impl(__invoke_memobj_deref, _MemPtr&& __f, _Tp&& __t)
    { return (*std::forward<_Tp>(__t)).*__f; }


  template<typename _Callable, typename... _Args>
    constexpr typename __invoke_result<_Callable, _Args...>::type
    __invoke(_Callable&& __fn, _Args&&... __args)
    noexcept(__is_nothrow_invocable<_Callable, _Args...>::value)
    {
      using __result = __invoke_result<_Callable, _Args...>;
      using __type = typename __result::type;
      using __tag = typename __result::__invoke_type;
      return std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn),
     std::forward<_Args>(__args)...);
    }
# 118 "/usr/include/c++/11/bits/invoke.h" 3
  template<typename _Res, typename _Callable, typename... _Args>
    using __can_invoke_as_void = __enable_if_t<
      __and_<is_void<_Res>, __is_invocable<_Callable, _Args...>>::value,
      _Res
    >;

  template<typename _Res, typename _Callable, typename... _Args>
    using __can_invoke_as_nonvoid = __enable_if_t<
      __and_<__not_<is_void<_Res>>,
      is_convertible<typename __invoke_result<_Callable, _Args...>::type,
       _Res>
      >::value,
      _Res
    >;


  template<typename _Res, typename _Callable, typename... _Args>
    constexpr __can_invoke_as_nonvoid<_Res, _Callable, _Args...>
    __invoke_r(_Callable&& __fn, _Args&&... __args)
    {
      using __result = __invoke_result<_Callable, _Args...>;
      using __type = typename __result::type;
      using __tag = typename __result::__invoke_type;
      return std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn),
     std::forward<_Args>(__args)...);
    }


  template<typename _Res, typename _Callable, typename... _Args>
    __can_invoke_as_void<_Res, _Callable, _Args...>
    __invoke_r(_Callable&& __fn, _Args&&... __args)
    {
      using __result = __invoke_result<_Callable, _Args...>;
      using __type = typename __result::type;
      using __tag = typename __result::__invoke_type;
      std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn),
     std::forward<_Args>(__args)...);
    }



}
# 42 "/usr/include/c++/11/tuple" 2 3





namespace std __attribute__ ((__visibility__ ("default")))
{







  template<typename... _Elements>
    class tuple;

  template<typename _Tp>
    struct __is_empty_non_tuple : is_empty<_Tp> { };


  template<typename _El0, typename... _El>
    struct __is_empty_non_tuple<tuple<_El0, _El...>> : false_type { };


  template<typename _Tp>
    using __empty_not_final
    = typename conditional<__is_final(_Tp), false_type,
      __is_empty_non_tuple<_Tp>>::type;

  template<size_t _Idx, typename _Head,
    bool = __empty_not_final<_Head>::value>
    struct _Head_base;


  template<size_t _Idx, typename _Head>
    struct _Head_base<_Idx, _Head, true>
    {
      constexpr _Head_base()
      : _M_head_impl() { }

      constexpr _Head_base(const _Head& __h)
      : _M_head_impl(__h) { }

      constexpr _Head_base(const _Head_base&) = default;
      constexpr _Head_base(_Head_base&&) = default;

      template<typename _UHead>
 constexpr _Head_base(_UHead&& __h)
 : _M_head_impl(std::forward<_UHead>(__h)) { }

     
      _Head_base(allocator_arg_t, __uses_alloc0)
      : _M_head_impl() { }

      template<typename _Alloc>
 _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a)
 : _M_head_impl(allocator_arg, *__a._M_a) { }

      template<typename _Alloc>
 _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a)
 : _M_head_impl(*__a._M_a) { }

      template<typename _UHead>

 _Head_base(__uses_alloc0, _UHead&& __uhead)
 : _M_head_impl(std::forward<_UHead>(__uhead)) { }

      template<typename _Alloc, typename _UHead>
 _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)
 : _M_head_impl(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead))
 { }

      template<typename _Alloc, typename _UHead>
 _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)
 : _M_head_impl(std::forward<_UHead>(__uhead), *__a._M_a) { }

      static constexpr _Head&
      _M_head(_Head_base& __b) noexcept { return __b._M_head_impl; }

      static constexpr const _Head&
      _M_head(const _Head_base& __b) noexcept { return __b._M_head_impl; }

      [[__no_unique_address__]] _Head _M_head_impl;
    };
# 176 "/usr/include/c++/11/tuple" 3
  template<size_t _Idx, typename _Head>
    struct _Head_base<_Idx, _Head, false>
    {
      constexpr _Head_base()
      : _M_head_impl() { }

      constexpr _Head_base(const _Head& __h)
      : _M_head_impl(__h) { }

      constexpr _Head_base(const _Head_base&) = default;
      constexpr _Head_base(_Head_base&&) = default;

      template<typename _UHead>
        constexpr _Head_base(_UHead&& __h)
 : _M_head_impl(std::forward<_UHead>(__h)) { }

     
      _Head_base(allocator_arg_t, __uses_alloc0)
      : _M_head_impl() { }

      template<typename _Alloc>
 _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a)
 : _M_head_impl(allocator_arg, *__a._M_a) { }

      template<typename _Alloc>
 _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a)
 : _M_head_impl(*__a._M_a) { }

      template<typename _UHead>

 _Head_base(__uses_alloc0, _UHead&& __uhead)
 : _M_head_impl(std::forward<_UHead>(__uhead)) { }

      template<typename _Alloc, typename _UHead>
 _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)
 : _M_head_impl(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead))
 { }

      template<typename _Alloc, typename _UHead>
 _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)
 : _M_head_impl(std::forward<_UHead>(__uhead), *__a._M_a) { }

      static constexpr _Head&
      _M_head(_Head_base& __b) noexcept { return __b._M_head_impl; }

      static constexpr const _Head&
      _M_head(const _Head_base& __b) noexcept { return __b._M_head_impl; }

      _Head _M_head_impl;
    };
# 235 "/usr/include/c++/11/tuple" 3
  template<size_t _Idx, typename... _Elements>
    struct _Tuple_impl;






  template<size_t _Idx, typename _Head, typename... _Tail>
    struct _Tuple_impl<_Idx, _Head, _Tail...>
    : public _Tuple_impl<_Idx + 1, _Tail...>,
      private _Head_base<_Idx, _Head>
    {
      template<size_t, typename...> friend struct _Tuple_impl;

      typedef _Tuple_impl<_Idx + 1, _Tail...> _Inherited;
      typedef _Head_base<_Idx, _Head> _Base;

      static constexpr _Head&
      _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }

      static constexpr const _Head&
      _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }

      static constexpr _Inherited&
      _M_tail(_Tuple_impl& __t) noexcept { return __t; }

      static constexpr const _Inherited&
      _M_tail(const _Tuple_impl& __t) noexcept { return __t; }

      constexpr _Tuple_impl()
      : _Inherited(), _Base() { }

      explicit constexpr
      _Tuple_impl(const _Head& __head, const _Tail&... __tail)
      : _Inherited(__tail...), _Base(__head)
      { }

      template<typename _UHead, typename... _UTail,
        typename = __enable_if_t<sizeof...(_Tail) == sizeof...(_UTail)>>
 explicit constexpr
 _Tuple_impl(_UHead&& __head, _UTail&&... __tail)
 : _Inherited(std::forward<_UTail>(__tail)...),
   _Base(std::forward<_UHead>(__head))
 { }

      constexpr _Tuple_impl(const _Tuple_impl&) = default;



      _Tuple_impl& operator=(const _Tuple_impl&) = delete;

      constexpr
      _Tuple_impl(_Tuple_impl&& __in)
      noexcept(__and_<is_nothrow_move_constructible<_Head>,
        is_nothrow_move_constructible<_Inherited>>::value)
      : _Inherited(std::move(_M_tail(__in))),
 _Base(std::forward<_Head>(_M_head(__in)))
      { }

      template<typename... _UElements>
 constexpr
 _Tuple_impl(const _Tuple_impl<_Idx, _UElements...>& __in)
 : _Inherited(_Tuple_impl<_Idx, _UElements...>::_M_tail(__in)),
   _Base(_Tuple_impl<_Idx, _UElements...>::_M_head(__in))
 { }

      template<typename _UHead, typename... _UTails>
 constexpr
 _Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
 : _Inherited(std::move
       (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))),
   _Base(std::forward<_UHead>
  (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in)))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a)
 : _Inherited(__tag, __a),
   _Base(__tag, __use_alloc<_Head>(__a))
 { }

      template<typename _Alloc>
 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Head& __head, const _Tail&... __tail)
 : _Inherited(__tag, __a, __tail...),
   _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head)
 { }

      template<typename _Alloc, typename _UHead, typename... _UTail,
        typename = __enable_if_t<sizeof...(_Tail) == sizeof...(_UTail)>>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _UHead&& __head, _UTail&&... __tail)
 : _Inherited(__tag, __a, std::forward<_UTail>(__tail)...),
   _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
  std::forward<_UHead>(__head))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Tuple_impl& __in)
 : _Inherited(__tag, __a, _M_tail(__in)),
   _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _Tuple_impl&& __in)
 : _Inherited(__tag, __a, std::move(_M_tail(__in))),
   _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
  std::forward<_Head>(_M_head(__in)))
 { }

      template<typename _Alloc, typename _UHead, typename... _UTails>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Tuple_impl<_Idx, _UHead, _UTails...>& __in)
 : _Inherited(__tag, __a,
       _Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in)),
   _Base(__use_alloc<_Head, _Alloc, const _UHead&>(__a),
  _Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in))
 { }

      template<typename _Alloc, typename _UHead, typename... _UTails>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
 : _Inherited(__tag, __a, std::move
       (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))),
   _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
  std::forward<_UHead>
  (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in)))
 { }

      template<typename... _UElements>

 void
 _M_assign(const _Tuple_impl<_Idx, _UElements...>& __in)
 {
   _M_head(*this) = _Tuple_impl<_Idx, _UElements...>::_M_head(__in);
   _M_tail(*this)._M_assign(
       _Tuple_impl<_Idx, _UElements...>::_M_tail(__in));
 }

      template<typename _UHead, typename... _UTails>

 void
 _M_assign(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
 {
   _M_head(*this) = std::forward<_UHead>
     (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in));
   _M_tail(*this)._M_assign(
       std::move(_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in)));
 }

    protected:
     
      void
      _M_swap(_Tuple_impl& __in)
      {
 using std::swap;
 swap(_M_head(*this), _M_head(__in));
 _Inherited::_M_swap(_M_tail(__in));
      }
    };


  template<size_t _Idx, typename _Head>
    struct _Tuple_impl<_Idx, _Head>
    : private _Head_base<_Idx, _Head>
    {
      template<size_t, typename...> friend struct _Tuple_impl;

      typedef _Head_base<_Idx, _Head> _Base;

      static constexpr _Head&
      _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }

      static constexpr const _Head&
      _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }

      constexpr
      _Tuple_impl()
      : _Base() { }

      explicit constexpr
      _Tuple_impl(const _Head& __head)
      : _Base(__head)
      { }

      template<typename _UHead>
 explicit constexpr
 _Tuple_impl(_UHead&& __head)
 : _Base(std::forward<_UHead>(__head))
 { }

      constexpr _Tuple_impl(const _Tuple_impl&) = default;



      _Tuple_impl& operator=(const _Tuple_impl&) = delete;

      constexpr
      _Tuple_impl(_Tuple_impl&& __in)
      noexcept(is_nothrow_move_constructible<_Head>::value)
      : _Base(std::forward<_Head>(_M_head(__in)))
      { }

      template<typename _UHead>
 constexpr
 _Tuple_impl(const _Tuple_impl<_Idx, _UHead>& __in)
 : _Base(_Tuple_impl<_Idx, _UHead>::_M_head(__in))
 { }

      template<typename _UHead>
 constexpr
 _Tuple_impl(_Tuple_impl<_Idx, _UHead>&& __in)
 : _Base(std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in)))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a)
 : _Base(__tag, __use_alloc<_Head>(__a))
 { }

      template<typename _Alloc>
 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Head& __head)
 : _Base(__use_alloc<_Head, _Alloc, const _Head&>(__a), __head)
 { }

      template<typename _Alloc, typename _UHead>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _UHead&& __head)
 : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
  std::forward<_UHead>(__head))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Tuple_impl& __in)
 : _Base(__use_alloc<_Head, _Alloc, const _Head&>(__a), _M_head(__in))
 { }

      template<typename _Alloc>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _Tuple_impl&& __in)
 : _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
  std::forward<_Head>(_M_head(__in)))
 { }

      template<typename _Alloc, typename _UHead>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      const _Tuple_impl<_Idx, _UHead>& __in)
 : _Base(__use_alloc<_Head, _Alloc, const _UHead&>(__a),
  _Tuple_impl<_Idx, _UHead>::_M_head(__in))
 { }

      template<typename _Alloc, typename _UHead>

 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
      _Tuple_impl<_Idx, _UHead>&& __in)
 : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
  std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in)))
 { }

      template<typename _UHead>

 void
 _M_assign(const _Tuple_impl<_Idx, _UHead>& __in)
 {
   _M_head(*this) = _Tuple_impl<_Idx, _UHead>::_M_head(__in);
 }

      template<typename _UHead>

 void
 _M_assign(_Tuple_impl<_Idx, _UHead>&& __in)
 {
   _M_head(*this)
     = std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in));
 }

    protected:
     
      void
      _M_swap(_Tuple_impl& __in)
      {
 using std::swap;
 swap(_M_head(*this), _M_head(__in));
      }
    };



  template<bool, typename... _Types>
    struct _TupleConstraints
    {
      template<typename _Tp, typename _Up>
 using is_constructible
   = __bool_constant<__is_constructible(_Tp, _Up)>;




      template<typename... _UTypes>
 static constexpr bool __is_implicitly_constructible()
 {
   return __and_<is_constructible<_Types, _UTypes>...,
   is_convertible<_UTypes, _Types>...
   >::value;
 }




      template<typename... _UTypes>
 static constexpr bool __is_explicitly_constructible()
 {
   return __and_<is_constructible<_Types, _UTypes>...,
   __not_<__and_<is_convertible<_UTypes, _Types>...>>
   >::value;
 }

      static constexpr bool __is_implicitly_default_constructible()
      {
 return __and_<std::__is_implicitly_default_constructible<_Types>...
        >::value;
      }

      static constexpr bool __is_explicitly_default_constructible()
      {
 return __and_<is_default_constructible<_Types>...,
        __not_<__and_<
   std::__is_implicitly_default_constructible<_Types>...>
        >>::value;
      }
    };



  template<typename... _Types>
    struct _TupleConstraints<false, _Types...>
    {
      template<typename... _UTypes>
 static constexpr bool __is_implicitly_constructible()
 { return false; }

      template<typename... _UTypes>
 static constexpr bool __is_explicitly_constructible()
 { return false; }
    };


  template<typename... _Elements>
    class tuple : public _Tuple_impl<0, _Elements...>
    {
      typedef _Tuple_impl<0, _Elements...> _Inherited;

      template<bool _Cond>
 using _TCC = _TupleConstraints<_Cond, _Elements...>;


      template<bool _Dummy>
 using _ImplicitDefaultCtor = __enable_if_t<
   _TCC<_Dummy>::__is_implicitly_default_constructible(),
   bool>;


      template<bool _Dummy>
 using _ExplicitDefaultCtor = __enable_if_t<
   _TCC<_Dummy>::__is_explicitly_default_constructible(),
   bool>;


      template<bool _Cond, typename... _Args>
 using _ImplicitCtor = __enable_if_t<
   _TCC<_Cond>::template __is_implicitly_constructible<_Args...>(),
   bool>;


      template<bool _Cond, typename... _Args>
 using _ExplicitCtor = __enable_if_t<
   _TCC<_Cond>::template __is_explicitly_constructible<_Args...>(),
   bool>;

      template<typename... _UElements>
 static constexpr
 __enable_if_t<sizeof...(_UElements) == sizeof...(_Elements), bool>
 __assignable()
 { return __and_<is_assignable<_Elements&, _UElements>...>::value; }


      template<typename... _UElements>
 static constexpr bool __nothrow_assignable()
 {
   return
     __and_<is_nothrow_assignable<_Elements&, _UElements>...>::value;
 }


      template<typename... _UElements>
 static constexpr bool __nothrow_constructible()
 {
   return
     __and_<is_nothrow_constructible<_Elements, _UElements>...>::value;
 }


      template<typename _Up>
 static constexpr bool __valid_args()
 {
   return sizeof...(_Elements) == 1
     && !is_same<tuple, __remove_cvref_t<_Up>>::value;
 }


      template<typename, typename, typename... _Tail>
 static constexpr bool __valid_args()
 { return (sizeof...(_Tail) + 2) == sizeof...(_Elements); }
# 674 "/usr/include/c++/11/tuple" 3
      template<typename _Tuple, typename = tuple,
        typename = __remove_cvref_t<_Tuple>>
 struct _UseOtherCtor
 : false_type
 { };


      template<typename _Tuple, typename _Tp, typename _Up>
 struct _UseOtherCtor<_Tuple, tuple<_Tp>, tuple<_Up>>
 : __or_<is_convertible<_Tuple, _Tp>, is_constructible<_Tp, _Tuple>>
 { };


      template<typename _Tuple, typename _Tp>
 struct _UseOtherCtor<_Tuple, tuple<_Tp>, tuple<_Tp>>
 : true_type
 { };




      template<typename _Tuple>
 static constexpr bool __use_other_ctor()
 { return _UseOtherCtor<_Tuple>::value; }

    public:
      template<typename _Dummy = void,
        _ImplicitDefaultCtor<is_void<_Dummy>::value> = true>
 constexpr
 tuple()
 noexcept(__and_<is_nothrow_default_constructible<_Elements>...>::value)
 : _Inherited() { }

      template<typename _Dummy = void,
        _ExplicitDefaultCtor<is_void<_Dummy>::value> = false>
 explicit constexpr
 tuple()
 noexcept(__and_<is_nothrow_default_constructible<_Elements>...>::value)
 : _Inherited() { }

      template<bool _NotEmpty = (sizeof...(_Elements) >= 1),
        _ImplicitCtor<_NotEmpty, const _Elements&...> = true>
 constexpr
 tuple(const _Elements&... __elements)
 noexcept(__nothrow_constructible<const _Elements&...>())
 : _Inherited(__elements...) { }

      template<bool _NotEmpty = (sizeof...(_Elements) >= 1),
        _ExplicitCtor<_NotEmpty, const _Elements&...> = false>
 explicit constexpr
 tuple(const _Elements&... __elements)
 noexcept(__nothrow_constructible<const _Elements&...>())
 : _Inherited(__elements...) { }

      template<typename... _UElements,
        bool _Valid = __valid_args<_UElements...>(),
        _ImplicitCtor<_Valid, _UElements...> = true>
 constexpr
 tuple(_UElements&&... __elements)
 noexcept(__nothrow_constructible<_UElements...>())
 : _Inherited(std::forward<_UElements>(__elements)...) { }

      template<typename... _UElements,
        bool _Valid = __valid_args<_UElements...>(),
        _ExplicitCtor<_Valid, _UElements...> = false>
 explicit constexpr
 tuple(_UElements&&... __elements)
 noexcept(__nothrow_constructible<_UElements...>())
 : _Inherited(std::forward<_UElements>(__elements)...) { }

      constexpr tuple(const tuple&) = default;

      constexpr tuple(tuple&&) = default;

      template<typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
      && !__use_other_ctor<const tuple<_UElements...>&>(),
        _ImplicitCtor<_Valid, const _UElements&...> = true>
 constexpr
 tuple(const tuple<_UElements...>& __in)
 noexcept(__nothrow_constructible<const _UElements&...>())
 : _Inherited(static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
 { }

      template<typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
      && !__use_other_ctor<const tuple<_UElements...>&>(),
        _ExplicitCtor<_Valid, const _UElements&...> = false>
 explicit constexpr
 tuple(const tuple<_UElements...>& __in)
 noexcept(__nothrow_constructible<const _UElements&...>())
 : _Inherited(static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
 { }

      template<typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<tuple<_UElements...>&&>(),
        _ImplicitCtor<_Valid, _UElements...> = true>
 constexpr
 tuple(tuple<_UElements...>&& __in)
 noexcept(__nothrow_constructible<_UElements...>())
 : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { }

      template<typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<tuple<_UElements...>&&>(),
        _ExplicitCtor<_Valid, _UElements...> = false>
 explicit constexpr
 tuple(tuple<_UElements...>&& __in)
 noexcept(__nothrow_constructible<_UElements...>())
 : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { }



      template<typename _Alloc,
        _ImplicitDefaultCtor<is_object<_Alloc>::value> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a)
 : _Inherited(__tag, __a) { }

      template<typename _Alloc, bool _NotEmpty = (sizeof...(_Elements) >= 1),
        _ImplicitCtor<_NotEmpty, const _Elements&...> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const _Elements&... __elements)
 : _Inherited(__tag, __a, __elements...) { }

      template<typename _Alloc, bool _NotEmpty = (sizeof...(_Elements) >= 1),
        _ExplicitCtor<_NotEmpty, const _Elements&...> = false>

 explicit
 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const _Elements&... __elements)
 : _Inherited(__tag, __a, __elements...) { }

      template<typename _Alloc, typename... _UElements,
        bool _Valid = __valid_args<_UElements...>(),
        _ImplicitCtor<_Valid, _UElements...> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       _UElements&&... __elements)
 : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...)
 { }

      template<typename _Alloc, typename... _UElements,
   bool _Valid = __valid_args<_UElements...>(),
        _ExplicitCtor<_Valid, _UElements...> = false>

 explicit
 tuple(allocator_arg_t __tag, const _Alloc& __a,
       _UElements&&... __elements)
 : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...)
 { }

      template<typename _Alloc>

 tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in)
 : _Inherited(__tag, __a, static_cast<const _Inherited&>(__in)) { }

      template<typename _Alloc>

 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in)
 : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { }

      template<typename _Alloc, typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<const tuple<_UElements...>&>(),
        _ImplicitCtor<_Valid, const _UElements&...> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const tuple<_UElements...>& __in)
 : _Inherited(__tag, __a,
              static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
 { }

      template<typename _Alloc, typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<const tuple<_UElements...>&>(),
        _ExplicitCtor<_Valid, const _UElements&...> = false>

 explicit
 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const tuple<_UElements...>& __in)
 : _Inherited(__tag, __a,
              static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
 { }

      template<typename _Alloc, typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<tuple<_UElements...>&&>(),
        _ImplicitCtor<_Valid, _UElements...> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       tuple<_UElements...>&& __in)
 : _Inherited(__tag, __a,
              static_cast<_Tuple_impl<0, _UElements...>&&>(__in))
 { }

      template<typename _Alloc, typename... _UElements,
        bool _Valid = (sizeof...(_Elements) == sizeof...(_UElements))
        && !__use_other_ctor<tuple<_UElements...>&&>(),
        _ExplicitCtor<_Valid, _UElements...> = false>

 explicit
 tuple(allocator_arg_t __tag, const _Alloc& __a,
       tuple<_UElements...>&& __in)
 : _Inherited(__tag, __a,
              static_cast<_Tuple_impl<0, _UElements...>&&>(__in))
 { }



     
      tuple&
      operator=(typename conditional<__assignable<const _Elements&...>(),
         const tuple&,
         const __nonesuch&>::type __in)
      noexcept(__nothrow_assignable<const _Elements&...>())
      {
 this->_M_assign(__in);
 return *this;
      }

     
      tuple&
      operator=(typename conditional<__assignable<_Elements...>(),
         tuple&&,
         __nonesuch&&>::type __in)
      noexcept(__nothrow_assignable<_Elements...>())
      {
 this->_M_assign(std::move(__in));
 return *this;
      }

      template<typename... _UElements>

 __enable_if_t<__assignable<const _UElements&...>(), tuple&>
 operator=(const tuple<_UElements...>& __in)
 noexcept(__nothrow_assignable<const _UElements&...>())
 {
   this->_M_assign(__in);
   return *this;
 }

      template<typename... _UElements>

 __enable_if_t<__assignable<_UElements...>(), tuple&>
 operator=(tuple<_UElements...>&& __in)
 noexcept(__nothrow_assignable<_UElements...>())
 {
   this->_M_assign(std::move(__in));
   return *this;
 }


     
      void
      swap(tuple& __in)
      noexcept(__and_<__is_nothrow_swappable<_Elements>...>::value)
      { _Inherited::_M_swap(__in); }
    };
# 950 "/usr/include/c++/11/tuple" 3
  template<>
    class tuple<>
    {
    public:
      void swap(tuple&) noexcept { }


      tuple() = default;

      template<typename _Alloc>

 tuple(allocator_arg_t, const _Alloc&) noexcept { }
      template<typename _Alloc>

 tuple(allocator_arg_t, const _Alloc&, const tuple&) noexcept { }
    };



  template<typename _T1, typename _T2>
    class tuple<_T1, _T2> : public _Tuple_impl<0, _T1, _T2>
    {
      typedef _Tuple_impl<0, _T1, _T2> _Inherited;


      template<bool _Dummy, typename _U1, typename _U2>
 using _ImplicitDefaultCtor = __enable_if_t<
   _TupleConstraints<_Dummy, _U1, _U2>::
     __is_implicitly_default_constructible(),
   bool>;


      template<bool _Dummy, typename _U1, typename _U2>
 using _ExplicitDefaultCtor = __enable_if_t<
   _TupleConstraints<_Dummy, _U1, _U2>::
     __is_explicitly_default_constructible(),
   bool>;

      template<bool _Dummy>
 using _TCC = _TupleConstraints<_Dummy, _T1, _T2>;


      template<bool _Cond, typename _U1, typename _U2>
 using _ImplicitCtor = __enable_if_t<
   _TCC<_Cond>::template __is_implicitly_constructible<_U1, _U2>(),
   bool>;


      template<bool _Cond, typename _U1, typename _U2>
 using _ExplicitCtor = __enable_if_t<
   _TCC<_Cond>::template __is_explicitly_constructible<_U1, _U2>(),
   bool>;

      template<typename _U1, typename _U2>
 static constexpr bool __assignable()
 {
   return __and_<is_assignable<_T1&, _U1>,
   is_assignable<_T2&, _U2>>::value;
 }

      template<typename _U1, typename _U2>
 static constexpr bool __nothrow_assignable()
 {
   return __and_<is_nothrow_assignable<_T1&, _U1>,
   is_nothrow_assignable<_T2&, _U2>>::value;
 }

      template<typename _U1, typename _U2>
 static constexpr bool __nothrow_constructible()
 {
   return __and_<is_nothrow_constructible<_T1, _U1>,
       is_nothrow_constructible<_T2, _U2>>::value;
 }

      static constexpr bool __nothrow_default_constructible()
      {
 return __and_<is_nothrow_default_constructible<_T1>,
        is_nothrow_default_constructible<_T2>>::value;
      }

      template<typename _U1>
 static constexpr bool __is_alloc_arg()
 { return is_same<__remove_cvref_t<_U1>, allocator_arg_t>::value; }

    public:
      template<bool _Dummy = true,
        _ImplicitDefaultCtor<_Dummy, _T1, _T2> = true>
 constexpr
 tuple()
 noexcept(__nothrow_default_constructible())
 : _Inherited() { }

      template<bool _Dummy = true,
        _ExplicitDefaultCtor<_Dummy, _T1, _T2> = false>
 explicit constexpr
 tuple()
 noexcept(__nothrow_default_constructible())
 : _Inherited() { }

      template<bool _Dummy = true,
        _ImplicitCtor<_Dummy, const _T1&, const _T2&> = true>
 constexpr
 tuple(const _T1& __a1, const _T2& __a2)
 noexcept(__nothrow_constructible<const _T1&, const _T2&>())
 : _Inherited(__a1, __a2) { }

      template<bool _Dummy = true,
        _ExplicitCtor<_Dummy, const _T1&, const _T2&> = false>
 explicit constexpr
 tuple(const _T1& __a1, const _T2& __a2)
 noexcept(__nothrow_constructible<const _T1&, const _T2&>())
 : _Inherited(__a1, __a2) { }

      template<typename _U1, typename _U2,
        _ImplicitCtor<!__is_alloc_arg<_U1>(), _U1, _U2> = true>
 constexpr
 tuple(_U1&& __a1, _U2&& __a2)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }

      template<typename _U1, typename _U2,
        _ExplicitCtor<!__is_alloc_arg<_U1>(), _U1, _U2> = false>
 explicit constexpr
 tuple(_U1&& __a1, _U2&& __a2)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }

      constexpr tuple(const tuple&) = default;

      constexpr tuple(tuple&&) = default;

      template<typename _U1, typename _U2,
        _ImplicitCtor<true, const _U1&, const _U2&> = true>
 constexpr
 tuple(const tuple<_U1, _U2>& __in)
 noexcept(__nothrow_constructible<const _U1&, const _U2&>())
 : _Inherited(static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in)) { }

      template<typename _U1, typename _U2,
        _ExplicitCtor<true, const _U1&, const _U2&> = false>
 explicit constexpr
 tuple(const tuple<_U1, _U2>& __in)
 noexcept(__nothrow_constructible<const _U1&, const _U2&>())
 : _Inherited(static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in)) { }

      template<typename _U1, typename _U2,
        _ImplicitCtor<true, _U1, _U2> = true>
 constexpr
 tuple(tuple<_U1, _U2>&& __in)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { }

      template<typename _U1, typename _U2,
        _ExplicitCtor<true, _U1, _U2> = false>
 explicit constexpr
 tuple(tuple<_U1, _U2>&& __in)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { }

      template<typename _U1, typename _U2,
        _ImplicitCtor<true, const _U1&, const _U2&> = true>
 constexpr
 tuple(const pair<_U1, _U2>& __in)
 noexcept(__nothrow_constructible<const _U1&, const _U2&>())
 : _Inherited(__in.first, __in.second) { }

      template<typename _U1, typename _U2,
        _ExplicitCtor<true, const _U1&, const _U2&> = false>
 explicit constexpr
 tuple(const pair<_U1, _U2>& __in)
 noexcept(__nothrow_constructible<const _U1&, const _U2&>())
 : _Inherited(__in.first, __in.second) { }

      template<typename _U1, typename _U2,
        _ImplicitCtor<true, _U1, _U2> = true>
 constexpr
 tuple(pair<_U1, _U2>&& __in)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(std::forward<_U1>(__in.first),
       std::forward<_U2>(__in.second)) { }

      template<typename _U1, typename _U2,
        _ExplicitCtor<true, _U1, _U2> = false>
 explicit constexpr
 tuple(pair<_U1, _U2>&& __in)
 noexcept(__nothrow_constructible<_U1, _U2>())
 : _Inherited(std::forward<_U1>(__in.first),
       std::forward<_U2>(__in.second)) { }



      template<typename _Alloc,
        _ImplicitDefaultCtor<is_object<_Alloc>::value, _T1, _T2> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a)
 : _Inherited(__tag, __a) { }

      template<typename _Alloc, bool _Dummy = true,
        _ImplicitCtor<_Dummy, const _T1&, const _T2&> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const _T1& __a1, const _T2& __a2)
 : _Inherited(__tag, __a, __a1, __a2) { }

      template<typename _Alloc, bool _Dummy = true,
        _ExplicitCtor<_Dummy, const _T1&, const _T2&> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const _T1& __a1, const _T2& __a2)
 : _Inherited(__tag, __a, __a1, __a2) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ImplicitCtor<true, _U1, _U2> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a, _U1&& __a1, _U2&& __a2)
 : _Inherited(__tag, __a, std::forward<_U1>(__a1),
              std::forward<_U2>(__a2)) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ExplicitCtor<true, _U1, _U2> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       _U1&& __a1, _U2&& __a2)
 : _Inherited(__tag, __a, std::forward<_U1>(__a1),
              std::forward<_U2>(__a2)) { }

      template<typename _Alloc>

 tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in)
 : _Inherited(__tag, __a, static_cast<const _Inherited&>(__in)) { }

      template<typename _Alloc>

 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in)
 : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ImplicitCtor<true, const _U1&, const _U2&> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const tuple<_U1, _U2>& __in)
 : _Inherited(__tag, __a,
              static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in))
 { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ExplicitCtor<true, const _U1&, const _U2&> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const tuple<_U1, _U2>& __in)
 : _Inherited(__tag, __a,
              static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in))
 { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ImplicitCtor<true, _U1, _U2> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple<_U1, _U2>&& __in)
 : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in))
 { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ExplicitCtor<true, _U1, _U2> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple<_U1, _U2>&& __in)
 : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in))
 { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ImplicitCtor<true, const _U1&, const _U2&> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const pair<_U1, _U2>& __in)
 : _Inherited(__tag, __a, __in.first, __in.second) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ExplicitCtor<true, const _U1&, const _U2&> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a,
       const pair<_U1, _U2>& __in)
 : _Inherited(__tag, __a, __in.first, __in.second) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ImplicitCtor<true, _U1, _U2> = true>

 tuple(allocator_arg_t __tag, const _Alloc& __a, pair<_U1, _U2>&& __in)
 : _Inherited(__tag, __a, std::forward<_U1>(__in.first),
       std::forward<_U2>(__in.second)) { }

      template<typename _Alloc, typename _U1, typename _U2,
        _ExplicitCtor<true, _U1, _U2> = false>
 explicit

 tuple(allocator_arg_t __tag, const _Alloc& __a, pair<_U1, _U2>&& __in)
 : _Inherited(__tag, __a, std::forward<_U1>(__in.first),
       std::forward<_U2>(__in.second)) { }



     
      tuple&
      operator=(typename conditional<__assignable<const _T1&, const _T2&>(),
         const tuple&,
         const __nonesuch&>::type __in)
      noexcept(__nothrow_assignable<const _T1&, const _T2&>())
      {
 this->_M_assign(__in);
 return *this;
      }

     
      tuple&
      operator=(typename conditional<__assignable<_T1, _T2>(),
         tuple&&,
         __nonesuch&&>::type __in)
      noexcept(__nothrow_assignable<_T1, _T2>())
      {
 this->_M_assign(std::move(__in));
 return *this;
      }

      template<typename _U1, typename _U2>

 __enable_if_t<__assignable<const _U1&, const _U2&>(), tuple&>
 operator=(const tuple<_U1, _U2>& __in)
 noexcept(__nothrow_assignable<const _U1&, const _U2&>())
 {
   this->_M_assign(__in);
   return *this;
 }

      template<typename _U1, typename _U2>

 __enable_if_t<__assignable<_U1, _U2>(), tuple&>
 operator=(tuple<_U1, _U2>&& __in)
 noexcept(__nothrow_assignable<_U1, _U2>())
 {
   this->_M_assign(std::move(__in));
   return *this;
 }

      template<typename _U1, typename _U2>

 __enable_if_t<__assignable<const _U1&, const _U2&>(), tuple&>
 operator=(const pair<_U1, _U2>& __in)
 noexcept(__nothrow_assignable<const _U1&, const _U2&>())
 {
   this->_M_head(*this) = __in.first;
   this->_M_tail(*this)._M_head(*this) = __in.second;
   return *this;
 }

      template<typename _U1, typename _U2>

 __enable_if_t<__assignable<_U1, _U2>(), tuple&>
 operator=(pair<_U1, _U2>&& __in)
 noexcept(__nothrow_assignable<_U1, _U2>())
 {
   this->_M_head(*this) = std::forward<_U1>(__in.first);
   this->_M_tail(*this)._M_head(*this) = std::forward<_U2>(__in.second);
   return *this;
 }

     
      void
      swap(tuple& __in)
      noexcept(__and_<__is_nothrow_swappable<_T1>,
        __is_nothrow_swappable<_T2>>::value)
      { _Inherited::_M_swap(__in); }
    };



  template<typename... _Elements>
    struct tuple_size<tuple<_Elements...>>
    : public integral_constant<size_t, sizeof...(_Elements)> { };
# 1341 "/usr/include/c++/11/tuple" 3
  template<size_t __i, typename _Head, typename... _Tail>
    struct tuple_element<__i, tuple<_Head, _Tail...> >
    : tuple_element<__i - 1, tuple<_Tail...> > { };




  template<typename _Head, typename... _Tail>
    struct tuple_element<0, tuple<_Head, _Tail...> >
    {
      typedef _Head type;
    };




  template<size_t __i>
    struct tuple_element<__i, tuple<>>
    {
      static_assert(__i < tuple_size<tuple<>>::value,
   "tuple index is in range");
    };

  template<size_t __i, typename _Head, typename... _Tail>
    constexpr _Head&
    __get_helper(_Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
    { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }

  template<size_t __i, typename _Head, typename... _Tail>
    constexpr const _Head&
    __get_helper(const _Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
    { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }


  template<size_t __i, typename... _Elements>
    constexpr __tuple_element_t<__i, tuple<_Elements...>>&
    get(tuple<_Elements...>& __t) noexcept
    { return std::__get_helper<__i>(__t); }


  template<size_t __i, typename... _Elements>
    constexpr const __tuple_element_t<__i, tuple<_Elements...>>&
    get(const tuple<_Elements...>& __t) noexcept
    { return std::__get_helper<__i>(__t); }


  template<size_t __i, typename... _Elements>
    constexpr __tuple_element_t<__i, tuple<_Elements...>>&&
    get(tuple<_Elements...>&& __t) noexcept
    {
      typedef __tuple_element_t<__i, tuple<_Elements...>> __element_type;
      return std::forward<__element_type&&>(std::get<__i>(__t));
    }


  template<size_t __i, typename... _Elements>
    constexpr const __tuple_element_t<__i, tuple<_Elements...>>&&
    get(const tuple<_Elements...>&& __t) noexcept
    {
      typedef __tuple_element_t<__i, tuple<_Elements...>> __element_type;
      return std::forward<const __element_type&&>(std::get<__i>(__t));
    }
# 1445 "/usr/include/c++/11/tuple" 3
  template<typename _Tp, typename _Up, size_t __i, size_t __size>
    struct __tuple_compare
    {
      static constexpr bool
      __eq(const _Tp& __t, const _Up& __u)
      {
 return bool(std::get<__i>(__t) == std::get<__i>(__u))
   && __tuple_compare<_Tp, _Up, __i + 1, __size>::__eq(__t, __u);
      }

      static constexpr bool
      __less(const _Tp& __t, const _Up& __u)
      {
 return bool(std::get<__i>(__t) < std::get<__i>(__u))
   || (!bool(std::get<__i>(__u) < std::get<__i>(__t))
       && __tuple_compare<_Tp, _Up, __i + 1, __size>::__less(__t, __u));
      }
    };

  template<typename _Tp, typename _Up, size_t __size>
    struct __tuple_compare<_Tp, _Up, __size, __size>
    {
      static constexpr bool
      __eq(const _Tp&, const _Up&) { return true; }

      static constexpr bool
      __less(const _Tp&, const _Up&) { return false; }
    };

  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator==(const tuple<_TElements...>& __t,
        const tuple<_UElements...>& __u)
    {
      static_assert(sizeof...(_TElements) == sizeof...(_UElements),
   "tuple objects can only be compared if they have equal sizes.");
      using __compare = __tuple_compare<tuple<_TElements...>,
     tuple<_UElements...>,
     0, sizeof...(_TElements)>;
      return __compare::__eq(__t, __u);
    }
# 1516 "/usr/include/c++/11/tuple" 3
  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator<(const tuple<_TElements...>& __t,
       const tuple<_UElements...>& __u)
    {
      static_assert(sizeof...(_TElements) == sizeof...(_UElements),
   "tuple objects can only be compared if they have equal sizes.");
      using __compare = __tuple_compare<tuple<_TElements...>,
     tuple<_UElements...>,
     0, sizeof...(_TElements)>;
      return __compare::__less(__t, __u);
    }

  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator!=(const tuple<_TElements...>& __t,
        const tuple<_UElements...>& __u)
    { return !(__t == __u); }

  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator>(const tuple<_TElements...>& __t,
       const tuple<_UElements...>& __u)
    { return __u < __t; }

  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator<=(const tuple<_TElements...>& __t,
        const tuple<_UElements...>& __u)
    { return !(__u < __t); }

  template<typename... _TElements, typename... _UElements>
    constexpr bool
    operator>=(const tuple<_TElements...>& __t,
        const tuple<_UElements...>& __u)
    { return !(__t < __u); }



  template<typename... _Elements>
    constexpr tuple<typename __decay_and_strip<_Elements>::__type...>
    make_tuple(_Elements&&... __args)
    {
      typedef tuple<typename __decay_and_strip<_Elements>::__type...>
 __result_type;
      return __result_type(std::forward<_Elements>(__args)...);
    }




  template<typename... _Elements>
    constexpr tuple<_Elements&&...>
    forward_as_tuple(_Elements&&... __args) noexcept
    { return tuple<_Elements&&...>(std::forward<_Elements>(__args)...); }

  template<size_t, typename, typename, size_t>
    struct __make_tuple_impl;

  template<size_t _Idx, typename _Tuple, typename... _Tp, size_t _Nm>
    struct __make_tuple_impl<_Idx, tuple<_Tp...>, _Tuple, _Nm>
    : __make_tuple_impl<_Idx + 1,
   tuple<_Tp..., __tuple_element_t<_Idx, _Tuple>>,
   _Tuple, _Nm>
    { };

  template<size_t _Nm, typename _Tuple, typename... _Tp>
    struct __make_tuple_impl<_Nm, tuple<_Tp...>, _Tuple, _Nm>
    {
      typedef tuple<_Tp...> __type;
    };

  template<typename _Tuple>
    struct __do_make_tuple
    : __make_tuple_impl<0, tuple<>, _Tuple, tuple_size<_Tuple>::value>
    { };


  template<typename _Tuple>
    struct __make_tuple
    : public __do_make_tuple<__remove_cvref_t<_Tuple>>
    { };


  template<typename...>
    struct __combine_tuples;

  template<>
    struct __combine_tuples<>
    {
      typedef tuple<> __type;
    };

  template<typename... _Ts>
    struct __combine_tuples<tuple<_Ts...>>
    {
      typedef tuple<_Ts...> __type;
    };

  template<typename... _T1s, typename... _T2s, typename... _Rem>
    struct __combine_tuples<tuple<_T1s...>, tuple<_T2s...>, _Rem...>
    {
      typedef typename __combine_tuples<tuple<_T1s..., _T2s...>,
     _Rem...>::__type __type;
    };


  template<typename... _Tpls>
    struct __tuple_cat_result
    {
      typedef typename __combine_tuples
        <typename __make_tuple<_Tpls>::__type...>::__type __type;
    };



  template<typename...>
    struct __make_1st_indices;

  template<>
    struct __make_1st_indices<>
    {
      typedef _Index_tuple<> __type;
    };

  template<typename _Tp, typename... _Tpls>
    struct __make_1st_indices<_Tp, _Tpls...>
    {
      typedef typename _Build_index_tuple<tuple_size<
 typename remove_reference<_Tp>::type>::value>::__type __type;
    };




  template<typename _Ret, typename _Indices, typename... _Tpls>
    struct __tuple_concater;

  template<typename _Ret, size_t... _Is, typename _Tp, typename... _Tpls>
    struct __tuple_concater<_Ret, _Index_tuple<_Is...>, _Tp, _Tpls...>
    {
      template<typename... _Us>
        static constexpr _Ret
        _S_do(_Tp&& __tp, _Tpls&&... __tps, _Us&&... __us)
        {
   typedef typename __make_1st_indices<_Tpls...>::__type __idx;
   typedef __tuple_concater<_Ret, __idx, _Tpls...> __next;
   return __next::_S_do(std::forward<_Tpls>(__tps)...,
          std::forward<_Us>(__us)...,
          std::get<_Is>(std::forward<_Tp>(__tp))...);
 }
    };

  template<typename _Ret>
    struct __tuple_concater<_Ret, _Index_tuple<>>
    {
      template<typename... _Us>
 static constexpr _Ret
 _S_do(_Us&&... __us)
        {
   return _Ret(std::forward<_Us>(__us)...);
 }
    };


  template<typename... _Tpls, typename = typename
           enable_if<__and_<__is_tuple_like<_Tpls>...>::value>::type>
    constexpr auto
    tuple_cat(_Tpls&&... __tpls)
    -> typename __tuple_cat_result<_Tpls...>::__type
    {
      typedef typename __tuple_cat_result<_Tpls...>::__type __ret;
      typedef typename __make_1st_indices<_Tpls...>::__type __idx;
      typedef __tuple_concater<__ret, __idx, _Tpls...> __concater;
      return __concater::_S_do(std::forward<_Tpls>(__tpls)...);
    }




  template<typename... _Elements>
    constexpr tuple<_Elements&...>
    tie(_Elements&... __args) noexcept
    { return tuple<_Elements&...>(__args...); }


  template<typename... _Elements>
   
    inline





    void

    swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)
    noexcept(noexcept(__x.swap(__y)))
    { __x.swap(__y); }
# 1727 "/usr/include/c++/11/tuple" 3
  struct _Swallow_assign
  {
    template<class _Tp>
      const _Swallow_assign&
      operator=(const _Tp&) const
      { return *this; }
  };



  constexpr _Swallow_assign ignore{};


  template<typename... _Types, typename _Alloc>
    struct uses_allocator<tuple<_Types...>, _Alloc> : true_type { };
# 1752 "/usr/include/c++/11/tuple" 3
  template<class _T1, class _T2>
    template<typename... _Args1, typename... _Args2>
     
      inline
      pair<_T1, _T2>::
      pair(piecewise_construct_t,
    tuple<_Args1...> __first, tuple<_Args2...> __second)
      : pair(__first, __second,
      typename _Build_index_tuple<sizeof...(_Args1)>::__type(),
      typename _Build_index_tuple<sizeof...(_Args2)>::__type())
      { }

  template<class _T1, class _T2>
    template<typename... _Args1, size_t... _Indexes1,
      typename... _Args2, size_t... _Indexes2>
      inline
      pair<_T1, _T2>::
      pair(tuple<_Args1...>& __tuple1, tuple<_Args2...>& __tuple2,
    _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>)
      : first(std::forward<_Args1>(std::get<_Indexes1>(__tuple1))...),
 second(std::forward<_Args2>(std::get<_Indexes2>(__tuple2))...)
      { }
# 1842 "/usr/include/c++/11/tuple" 3

}
# 38 "/usr/include/c++/11/bits/unique_ptr.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_function.h" 1 3
# 63 "/usr/include/c++/11/bits/stl_function.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 104 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Arg, typename _Result>
    struct unary_function
    {

      typedef _Arg argument_type;


      typedef _Result result_type;
    };




  template<typename _Arg1, typename _Arg2, typename _Result>
    struct binary_function
    {

      typedef _Arg1 first_argument_type;


      typedef _Arg2 second_argument_type;


      typedef _Result result_type;
    };
# 166 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Tp>
    struct plus : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x + __y; }
    };


  template<typename _Tp>
    struct minus : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x - __y; }
    };


  template<typename _Tp>
    struct multiplies : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x * __y; }
    };


  template<typename _Tp>
    struct divides : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x / __y; }
    };


  template<typename _Tp>
    struct modulus : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x % __y; }
    };


  template<typename _Tp>
    struct negate : public unary_function<_Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x) const
      { return -__x; }
    };
# 350 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Tp>
    struct equal_to : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x == __y; }
    };


  template<typename _Tp>
    struct not_equal_to : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x != __y; }
    };


  template<typename _Tp>
    struct greater : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x > __y; }
    };


  template<typename _Tp>
    struct less : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x < __y; }
    };


  template<typename _Tp>
    struct greater_equal : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x >= __y; }
    };


  template<typename _Tp>
    struct less_equal : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x <= __y; }
    };


  template<typename _Tp>
    struct greater<_Tp*> : public binary_function<_Tp*, _Tp*, bool>
    {
      bool
      operator()(_Tp* __x, _Tp* __y) const noexcept
      {
# 424 "/usr/include/c++/11/bits/stl_function.h" 3
 return (long unsigned int)__x > (long unsigned int)__y;
      }
    };


  template<typename _Tp>
    struct less<_Tp*> : public binary_function<_Tp*, _Tp*, bool>
    {
      bool
      operator()(_Tp* __x, _Tp* __y) const noexcept
      {
# 443 "/usr/include/c++/11/bits/stl_function.h" 3
 return (long unsigned int)__x < (long unsigned int)__y;
      }
    };


  template<typename _Tp>
    struct greater_equal<_Tp*> : public binary_function<_Tp*, _Tp*, bool>
    {
      bool
      operator()(_Tp* __x, _Tp* __y) const noexcept
      {
# 462 "/usr/include/c++/11/bits/stl_function.h" 3
 return (long unsigned int)__x >= (long unsigned int)__y;
      }
    };


  template<typename _Tp>
    struct less_equal<_Tp*> : public binary_function<_Tp*, _Tp*, bool>
    {
      bool
      operator()(_Tp* __x, _Tp* __y) const noexcept
      {
# 481 "/usr/include/c++/11/bits/stl_function.h" 3
 return (long unsigned int)__x <= (long unsigned int)__y;
      }
    };
# 785 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Tp>
    struct logical_and : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x && __y; }
    };


  template<typename _Tp>
    struct logical_or : public binary_function<_Tp, _Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x || __y; }
    };


  template<typename _Tp>
    struct logical_not : public unary_function<_Tp, bool>
    {
     
      bool
      operator()(const _Tp& __x) const
      { return !__x; }
    };
# 878 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Tp>
    struct bit_and : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x & __y; }
    };

  template<typename _Tp>
    struct bit_or : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x | __y; }
    };

  template<typename _Tp>
    struct bit_xor : public binary_function<_Tp, _Tp, _Tp>
    {
     
      _Tp
      operator()(const _Tp& __x, const _Tp& __y) const
      { return __x ^ __y; }
    };

  template<typename _Tp>
    struct bit_not : public unary_function<_Tp, _Tp>
    {
   
      _Tp
      operator()(const _Tp& __x) const
      { return ~__x; }
    };
# 1002 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Predicate>
    class unary_negate
    : public unary_function<typename _Predicate::argument_type, bool>
    {
    protected:
      _Predicate _M_pred;

    public:
     
      explicit
      unary_negate(const _Predicate& __x) : _M_pred(__x) { }

     
      bool
      operator()(const typename _Predicate::argument_type& __x) const
      { return !_M_pred(__x); }
    };


  template<typename _Predicate>
   
    inline unary_negate<_Predicate>
    not1(const _Predicate& __pred)
    { return unary_negate<_Predicate>(__pred); }


  template<typename _Predicate>
    class binary_negate
    : public binary_function<typename _Predicate::first_argument_type,
        typename _Predicate::second_argument_type, bool>
    {
    protected:
      _Predicate _M_pred;

    public:
     
      explicit
      binary_negate(const _Predicate& __x) : _M_pred(__x) { }

     
      bool
      operator()(const typename _Predicate::first_argument_type& __x,
   const typename _Predicate::second_argument_type& __y) const
      { return !_M_pred(__x, __y); }
    };


  template<typename _Predicate>
   
    inline binary_negate<_Predicate>
    not2(const _Predicate& __pred)
    { return binary_negate<_Predicate>(__pred); }
# 1079 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Arg, typename _Result>
    class pointer_to_unary_function : public unary_function<_Arg, _Result>
    {
    protected:
      _Result (*_M_ptr)(_Arg);

    public:
      pointer_to_unary_function() { }

      explicit
      pointer_to_unary_function(_Result (*__x)(_Arg))
      : _M_ptr(__x) { }

      _Result
      operator()(_Arg __x) const
      { return _M_ptr(__x); }
    };


  template<typename _Arg, typename _Result>
    inline pointer_to_unary_function<_Arg, _Result>
    ptr_fun(_Result (*__x)(_Arg))
    { return pointer_to_unary_function<_Arg, _Result>(__x); }


  template<typename _Arg1, typename _Arg2, typename _Result>
    class pointer_to_binary_function
    : public binary_function<_Arg1, _Arg2, _Result>
    {
    protected:
      _Result (*_M_ptr)(_Arg1, _Arg2);

    public:
      pointer_to_binary_function() { }

      explicit
      pointer_to_binary_function(_Result (*__x)(_Arg1, _Arg2))
      : _M_ptr(__x) { }

      _Result
      operator()(_Arg1 __x, _Arg2 __y) const
      { return _M_ptr(__x, __y); }
    };


  template<typename _Arg1, typename _Arg2, typename _Result>
    inline pointer_to_binary_function<_Arg1, _Arg2, _Result>
    ptr_fun(_Result (*__x)(_Arg1, _Arg2))
    { return pointer_to_binary_function<_Arg1, _Arg2, _Result>(__x); }


  template<typename _Tp>
    struct _Identity
    : public unary_function<_Tp, _Tp>
    {
      _Tp&
      operator()(_Tp& __x) const
      { return __x; }

      const _Tp&
      operator()(const _Tp& __x) const
      { return __x; }
    };


  template<typename _Tp> struct _Identity<const _Tp> : _Identity<_Tp> { };

  template<typename _Pair>
    struct _Select1st
    : public unary_function<_Pair, typename _Pair::first_type>
    {
      typename _Pair::first_type&
      operator()(_Pair& __x) const
      { return __x.first; }

      const typename _Pair::first_type&
      operator()(const _Pair& __x) const
      { return __x.first; }


      template<typename _Pair2>
        typename _Pair2::first_type&
        operator()(_Pair2& __x) const
        { return __x.first; }

      template<typename _Pair2>
        const typename _Pair2::first_type&
        operator()(const _Pair2& __x) const
        { return __x.first; }

    };

  template<typename _Pair>
    struct _Select2nd
    : public unary_function<_Pair, typename _Pair::second_type>
    {
      typename _Pair::second_type&
      operator()(_Pair& __x) const
      { return __x.second; }

      const typename _Pair::second_type&
      operator()(const _Pair& __x) const
      { return __x.second; }
    };
# 1202 "/usr/include/c++/11/bits/stl_function.h" 3
  template<typename _Ret, typename _Tp>
    class mem_fun_t : public unary_function<_Tp*, _Ret>
    {
    public:
      explicit
      mem_fun_t(_Ret (_Tp::*__pf)())
      : _M_f(__pf) { }

      _Ret
      operator()(_Tp* __p) const
      { return (__p->*_M_f)(); }

    private:
      _Ret (_Tp::*_M_f)();
    };



  template<typename _Ret, typename _Tp>
    class const_mem_fun_t : public unary_function<const _Tp*, _Ret>
    {
    public:
      explicit
      const_mem_fun_t(_Ret (_Tp::*__pf)() const)
      : _M_f(__pf) { }

      _Ret
      operator()(const _Tp* __p) const
      { return (__p->*_M_f)(); }

    private:
      _Ret (_Tp::*_M_f)() const;
    };



  template<typename _Ret, typename _Tp>
    class mem_fun_ref_t : public unary_function<_Tp, _Ret>
    {
    public:
      explicit
      mem_fun_ref_t(_Ret (_Tp::*__pf)())
      : _M_f(__pf) { }

      _Ret
      operator()(_Tp& __r) const
      { return (__r.*_M_f)(); }

    private:
      _Ret (_Tp::*_M_f)();
  };



  template<typename _Ret, typename _Tp>
    class const_mem_fun_ref_t : public unary_function<_Tp, _Ret>
    {
    public:
      explicit
      const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const)
      : _M_f(__pf) { }

      _Ret
      operator()(const _Tp& __r) const
      { return (__r.*_M_f)(); }

    private:
      _Ret (_Tp::*_M_f)() const;
    };



  template<typename _Ret, typename _Tp, typename _Arg>
    class mem_fun1_t : public binary_function<_Tp*, _Arg, _Ret>
    {
    public:
      explicit
      mem_fun1_t(_Ret (_Tp::*__pf)(_Arg))
      : _M_f(__pf) { }

      _Ret
      operator()(_Tp* __p, _Arg __x) const
      { return (__p->*_M_f)(__x); }

    private:
      _Ret (_Tp::*_M_f)(_Arg);
    };



  template<typename _Ret, typename _Tp, typename _Arg>
    class const_mem_fun1_t : public binary_function<const _Tp*, _Arg, _Ret>
    {
    public:
      explicit
      const_mem_fun1_t(_Ret (_Tp::*__pf)(_Arg) const)
      : _M_f(__pf) { }

      _Ret
      operator()(const _Tp* __p, _Arg __x) const
      { return (__p->*_M_f)(__x); }

    private:
      _Ret (_Tp::*_M_f)(_Arg) const;
    };



  template<typename _Ret, typename _Tp, typename _Arg>
    class mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret>
    {
    public:
      explicit
      mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg))
      : _M_f(__pf) { }

      _Ret
      operator()(_Tp& __r, _Arg __x) const
      { return (__r.*_M_f)(__x); }

    private:
      _Ret (_Tp::*_M_f)(_Arg);
    };



  template<typename _Ret, typename _Tp, typename _Arg>
    class const_mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret>
    {
    public:
      explicit
      const_mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg) const)
      : _M_f(__pf) { }

      _Ret
      operator()(const _Tp& __r, _Arg __x) const
      { return (__r.*_M_f)(__x); }

    private:
      _Ret (_Tp::*_M_f)(_Arg) const;
    };



  template<typename _Ret, typename _Tp>
    inline mem_fun_t<_Ret, _Tp>
    mem_fun(_Ret (_Tp::*__f)())
    { return mem_fun_t<_Ret, _Tp>(__f); }

  template<typename _Ret, typename _Tp>
    inline const_mem_fun_t<_Ret, _Tp>
    mem_fun(_Ret (_Tp::*__f)() const)
    { return const_mem_fun_t<_Ret, _Tp>(__f); }

  template<typename _Ret, typename _Tp>
    inline mem_fun_ref_t<_Ret, _Tp>
    mem_fun_ref(_Ret (_Tp::*__f)())
    { return mem_fun_ref_t<_Ret, _Tp>(__f); }

  template<typename _Ret, typename _Tp>
    inline const_mem_fun_ref_t<_Ret, _Tp>
    mem_fun_ref(_Ret (_Tp::*__f)() const)
    { return const_mem_fun_ref_t<_Ret, _Tp>(__f); }

  template<typename _Ret, typename _Tp, typename _Arg>
    inline mem_fun1_t<_Ret, _Tp, _Arg>
    mem_fun(_Ret (_Tp::*__f)(_Arg))
    { return mem_fun1_t<_Ret, _Tp, _Arg>(__f); }

  template<typename _Ret, typename _Tp, typename _Arg>
    inline const_mem_fun1_t<_Ret, _Tp, _Arg>
    mem_fun(_Ret (_Tp::*__f)(_Arg) const)
    { return const_mem_fun1_t<_Ret, _Tp, _Arg>(__f); }

  template<typename _Ret, typename _Tp, typename _Arg>
    inline mem_fun1_ref_t<_Ret, _Tp, _Arg>
    mem_fun_ref(_Ret (_Tp::*__f)(_Arg))
    { return mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); }

  template<typename _Ret, typename _Tp, typename _Arg>
    inline const_mem_fun1_ref_t<_Ret, _Tp, _Arg>
    mem_fun_ref(_Ret (_Tp::*__f)(_Arg) const)
    { return const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); }




}


# 1 "/usr/include/c++/11/backward/binders.h" 1 3
# 60 "/usr/include/c++/11/backward/binders.h" 3
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

namespace std __attribute__ ((__visibility__ ("default")))
{

# 107 "/usr/include/c++/11/backward/binders.h" 3
  template<typename _Operation>
    class binder1st
    : public unary_function<typename _Operation::second_argument_type,
       typename _Operation::result_type>
    {
    protected:
      _Operation op;
      typename _Operation::first_argument_type value;

    public:
      binder1st(const _Operation& __x,
  const typename _Operation::first_argument_type& __y)
      : op(__x), value(__y) { }

      typename _Operation::result_type
      operator()(const typename _Operation::second_argument_type& __x) const
      { return op(value, __x); }



      typename _Operation::result_type
      operator()(typename _Operation::second_argument_type& __x) const
      { return op(value, __x); }
    } __attribute__ ((__deprecated__ ("use '" "std::bind" "' instead")));


  template<typename _Operation, typename _Tp>
    inline binder1st<_Operation>
    bind1st(const _Operation& __fn, const _Tp& __x)
    {
      typedef typename _Operation::first_argument_type _Arg1_type;
      return binder1st<_Operation>(__fn, _Arg1_type(__x));
    }


  template<typename _Operation>
    class binder2nd
    : public unary_function<typename _Operation::first_argument_type,
       typename _Operation::result_type>
    {
    protected:
      _Operation op;
      typename _Operation::second_argument_type value;

    public:
      binder2nd(const _Operation& __x,
  const typename _Operation::second_argument_type& __y)
      : op(__x), value(__y) { }

      typename _Operation::result_type
      operator()(const typename _Operation::first_argument_type& __x) const
      { return op(__x, value); }



      typename _Operation::result_type
      operator()(typename _Operation::first_argument_type& __x) const
      { return op(__x, value); }
    } __attribute__ ((__deprecated__ ("use '" "std::bind" "' instead")));


  template<typename _Operation, typename _Tp>
    inline binder2nd<_Operation>
    bind2nd(const _Operation& __fn, const _Tp& __x)
    {
      typedef typename _Operation::second_argument_type _Arg2_type;
      return binder2nd<_Operation>(__fn, _Arg2_type(__x));
    }



}

#pragma GCC diagnostic pop
# 1393 "/usr/include/c++/11/bits/stl_function.h" 2 3
# 39 "/usr/include/c++/11/bits/unique_ptr.h" 2 3
# 1 "/usr/include/c++/11/bits/functional_hash.h" 1 3
# 33 "/usr/include/c++/11/bits/functional_hash.h" 3
       
# 34 "/usr/include/c++/11/bits/functional_hash.h" 3

# 1 "/usr/include/c++/11/bits/hash_bytes.h" 1 3
# 33 "/usr/include/c++/11/bits/hash_bytes.h" 3
       
# 34 "/usr/include/c++/11/bits/hash_bytes.h" 3



namespace std
{







  size_t
  _Hash_bytes(const void* __ptr, size_t __len, size_t __seed);





  size_t
  _Fnv_hash_bytes(const void* __ptr, size_t __len, size_t __seed);


}
# 36 "/usr/include/c++/11/bits/functional_hash.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{

# 49 "/usr/include/c++/11/bits/functional_hash.h" 3
  template<typename _Result, typename _Arg>
    struct __hash_base
    {
      typedef _Result result_type ;
      typedef _Arg argument_type ;
    };


  template<typename _Tp>
    struct hash;

  template<typename _Tp, typename = void>
    struct __poison_hash
    {
      static constexpr bool __enable_hash_call = false;
    private:

      __poison_hash(__poison_hash&&);
      ~__poison_hash();
    };

  template<typename _Tp>
    struct __poison_hash<_Tp, __void_t<decltype(hash<_Tp>()(declval<_Tp>()))>>
    {
      static constexpr bool __enable_hash_call = true;
    };


  template<typename _Tp, bool = is_enum<_Tp>::value>
    struct __hash_enum
    {
    private:

      __hash_enum(__hash_enum&&);
      ~__hash_enum();
    };


  template<typename _Tp>
    struct __hash_enum<_Tp, true> : public __hash_base<size_t, _Tp>
    {
      size_t
      operator()(_Tp __val) const noexcept
      {
       using __type = typename underlying_type<_Tp>::type;
       return hash<__type>{}(static_cast<__type>(__val));
      }
    };



  template<typename _Tp>
    struct hash : __hash_enum<_Tp>
    { };


  template<typename _Tp>
    struct hash<_Tp*> : public __hash_base<size_t, _Tp*>
    {
      size_t
      operator()(_Tp* __p) const noexcept
      { return reinterpret_cast<size_t>(__p); }
    };
# 124 "/usr/include/c++/11/bits/functional_hash.h" 3
  template<> struct hash<bool> : public __hash_base<size_t, bool> { size_t operator()(bool __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<char> : public __hash_base<size_t, char> { size_t operator()(char __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<signed char> : public __hash_base<size_t, signed char> { size_t operator()(signed char __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<unsigned char> : public __hash_base<size_t, unsigned char> { size_t operator()(unsigned char __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<wchar_t> : public __hash_base<size_t, wchar_t> { size_t operator()(wchar_t __val) const noexcept { return static_cast<size_t>(__val); } };







  template<> struct hash<char16_t> : public __hash_base<size_t, char16_t> { size_t operator()(char16_t __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<char32_t> : public __hash_base<size_t, char32_t> { size_t operator()(char32_t __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<short> : public __hash_base<size_t, short> { size_t operator()(short __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<int> : public __hash_base<size_t, int> { size_t operator()(int __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<long> : public __hash_base<size_t, long> { size_t operator()(long __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<long long> : public __hash_base<size_t, long long> { size_t operator()(long long __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<unsigned short> : public __hash_base<size_t, unsigned short> { size_t operator()(unsigned short __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<unsigned int> : public __hash_base<size_t, unsigned int> { size_t operator()(unsigned int __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<unsigned long> : public __hash_base<size_t, unsigned long> { size_t operator()(unsigned long __val) const noexcept { return static_cast<size_t>(__val); } };


  template<> struct hash<unsigned long long> : public __hash_base<size_t, unsigned long long> { size_t operator()(unsigned long long __val) const noexcept { return static_cast<size_t>(__val); } };
# 192 "/usr/include/c++/11/bits/functional_hash.h" 3
  struct _Hash_impl
  {
    static size_t
    hash(const void* __ptr, size_t __clength,
  size_t __seed = static_cast<size_t>(0xc70f6907UL))
    { return _Hash_bytes(__ptr, __clength, __seed); }

    template<typename _Tp>
      static size_t
      hash(const _Tp& __val)
      { return hash(&__val, sizeof(__val)); }

    template<typename _Tp>
      static size_t
      __hash_combine(const _Tp& __val, size_t __hash)
      { return hash(&__val, sizeof(__val), __hash); }
  };


  struct _Fnv_hash_impl
  {
    static size_t
    hash(const void* __ptr, size_t __clength,
  size_t __seed = static_cast<size_t>(2166136261UL))
    { return _Fnv_hash_bytes(__ptr, __clength, __seed); }

    template<typename _Tp>
      static size_t
      hash(const _Tp& __val)
      { return hash(&__val, sizeof(__val)); }

    template<typename _Tp>
      static size_t
      __hash_combine(const _Tp& __val, size_t __hash)
      { return hash(&__val, sizeof(__val), __hash); }
  };


  template<>
    struct hash<float> : public __hash_base<size_t, float>
    {
      size_t
      operator()(float __val) const noexcept
      {

 return __val != 0.0f ? std::_Hash_impl::hash(__val) : 0;
      }
    };


  template<>
    struct hash<double> : public __hash_base<size_t, double>
    {
      size_t
      operator()(double __val) const noexcept
      {

 return __val != 0.0 ? std::_Hash_impl::hash(__val) : 0;
      }
    };


  template<>
    struct hash<long double>
    : public __hash_base<size_t, long double>
    {
      __attribute__ ((__pure__)) size_t
      operator()(long double __val) const noexcept;
    };
# 278 "/usr/include/c++/11/bits/functional_hash.h" 3
  template<typename _Hash>
    struct __is_fast_hash : public std::true_type
    { };

  template<>
    struct __is_fast_hash<hash<long double>> : public std::false_type
    { };


}
# 40 "/usr/include/c++/11/bits/unique_ptr.h" 2 3





namespace std __attribute__ ((__visibility__ ("default")))
{








#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
  template<typename> class auto_ptr;
#pragma GCC diagnostic pop



  template<typename _Tp>
    struct default_delete
    {

      constexpr default_delete() noexcept = default;






      template<typename _Up,
        typename = _Require<is_convertible<_Up*, _Tp*>>>
        default_delete(const default_delete<_Up>&) noexcept { }


      void
      operator()(_Tp* __ptr) const
      {
 static_assert(!is_void<_Tp>::value,
        "can't delete pointer to incomplete type");
 static_assert(sizeof(_Tp)>0,
        "can't delete pointer to incomplete type");
 delete __ptr;
      }
    };





  template<typename _Tp>
    struct default_delete<_Tp[]>
    {
    public:

      constexpr default_delete() noexcept = default;
# 109 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up,
        typename = _Require<is_convertible<_Up(*)[], _Tp(*)[]>>>
        default_delete(const default_delete<_Up[]>&) noexcept { }


      template<typename _Up>
 typename enable_if<is_convertible<_Up(*)[], _Tp(*)[]>::value>::type
 operator()(_Up* __ptr) const
 {
   static_assert(sizeof(_Tp)>0,
   "can't delete pointer to incomplete type");
   delete [] __ptr;
 }
    };




  template <typename _Tp, typename _Dp>
    class __uniq_ptr_impl
    {
      template <typename _Up, typename _Ep, typename = void>
 struct _Ptr
 {
   using type = _Up*;
 };

      template <typename _Up, typename _Ep>
 struct
 _Ptr<_Up, _Ep, __void_t<typename remove_reference<_Ep>::type::pointer>>
 {
   using type = typename remove_reference<_Ep>::type::pointer;
 };

    public:
      using _DeleterConstraint = enable_if<
        __and_<__not_<is_pointer<_Dp>>,
        is_default_constructible<_Dp>>::value>;

      using pointer = typename _Ptr<_Tp, _Dp>::type;

      static_assert( !is_rvalue_reference<_Dp>::value,
       "unique_ptr's deleter type must be a function object type"
       " or an lvalue reference type" );

      __uniq_ptr_impl() = default;
      __uniq_ptr_impl(pointer __p) : _M_t() { _M_ptr() = __p; }

      template<typename _Del>
      __uniq_ptr_impl(pointer __p, _Del&& __d)
 : _M_t(__p, std::forward<_Del>(__d)) { }

      __uniq_ptr_impl(__uniq_ptr_impl&& __u) noexcept
      : _M_t(std::move(__u._M_t))
      { __u._M_ptr() = nullptr; }

      __uniq_ptr_impl& operator=(__uniq_ptr_impl&& __u) noexcept
      {
 reset(__u.release());
 _M_deleter() = std::forward<_Dp>(__u._M_deleter());
 return *this;
      }

      pointer& _M_ptr() { return std::get<0>(_M_t); }
      pointer _M_ptr() const { return std::get<0>(_M_t); }
      _Dp& _M_deleter() { return std::get<1>(_M_t); }
      const _Dp& _M_deleter() const { return std::get<1>(_M_t); }

      void reset(pointer __p) noexcept
      {
 const pointer __old_p = _M_ptr();
 _M_ptr() = __p;
 if (__old_p)
   _M_deleter()(__old_p);
      }

      pointer release() noexcept
      {
 pointer __p = _M_ptr();
 _M_ptr() = nullptr;
 return __p;
      }

      void
      swap(__uniq_ptr_impl& __rhs) noexcept
      {
 using std::swap;
 swap(this->_M_ptr(), __rhs._M_ptr());
 swap(this->_M_deleter(), __rhs._M_deleter());
      }

    private:
      tuple<pointer, _Dp> _M_t;
    };


  template <typename _Tp, typename _Dp,
     bool = is_move_constructible<_Dp>::value,
     bool = is_move_assignable<_Dp>::value>
    struct __uniq_ptr_data : __uniq_ptr_impl<_Tp, _Dp>
    {
      using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl;
      __uniq_ptr_data(__uniq_ptr_data&&) = default;
      __uniq_ptr_data& operator=(__uniq_ptr_data&&) = default;
    };

  template <typename _Tp, typename _Dp>
    struct __uniq_ptr_data<_Tp, _Dp, true, false> : __uniq_ptr_impl<_Tp, _Dp>
    {
      using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl;
      __uniq_ptr_data(__uniq_ptr_data&&) = default;
      __uniq_ptr_data& operator=(__uniq_ptr_data&&) = delete;
    };

  template <typename _Tp, typename _Dp>
    struct __uniq_ptr_data<_Tp, _Dp, false, true> : __uniq_ptr_impl<_Tp, _Dp>
    {
      using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl;
      __uniq_ptr_data(__uniq_ptr_data&&) = delete;
      __uniq_ptr_data& operator=(__uniq_ptr_data&&) = default;
    };

  template <typename _Tp, typename _Dp>
    struct __uniq_ptr_data<_Tp, _Dp, false, false> : __uniq_ptr_impl<_Tp, _Dp>
    {
      using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl;
      __uniq_ptr_data(__uniq_ptr_data&&) = delete;
      __uniq_ptr_data& operator=(__uniq_ptr_data&&) = delete;
    };



  template <typename _Tp, typename _Dp = default_delete<_Tp>>
    class unique_ptr
    {
      template <typename _Up>
 using _DeleterConstraint =
   typename __uniq_ptr_impl<_Tp, _Up>::_DeleterConstraint::type;

      __uniq_ptr_data<_Tp, _Dp> _M_t;

    public:
      using pointer = typename __uniq_ptr_impl<_Tp, _Dp>::pointer;
      using element_type = _Tp;
      using deleter_type = _Dp;

    private:


      template<typename _Up, typename _Ep>
 using __safe_conversion_up = __and_<
   is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>,
   __not_<is_array<_Up>>
        >;

    public:



      template<typename _Del = _Dp, typename = _DeleterConstraint<_Del>>
 constexpr unique_ptr() noexcept
 : _M_t()
 { }







      template<typename _Del = _Dp, typename = _DeleterConstraint<_Del>>
 explicit
 unique_ptr(pointer __p) noexcept
 : _M_t(__p)
        { }
# 292 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Del = deleter_type,
        typename = _Require<is_copy_constructible<_Del>>>
 unique_ptr(pointer __p, const deleter_type& __d) noexcept
 : _M_t(__p, __d) { }
# 304 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Del = deleter_type,
        typename = _Require<is_move_constructible<_Del>>>
 unique_ptr(pointer __p,
     __enable_if_t<!is_lvalue_reference<_Del>::value,
     _Del&&> __d) noexcept
 : _M_t(__p, std::move(__d))
 { }

      template<typename _Del = deleter_type,
        typename _DelUnref = typename remove_reference<_Del>::type>
 unique_ptr(pointer,
     __enable_if_t<is_lvalue_reference<_Del>::value,
     _DelUnref&&>) = delete;


      template<typename _Del = _Dp, typename = _DeleterConstraint<_Del>>
 constexpr unique_ptr(nullptr_t) noexcept
 : _M_t()
 { }




      unique_ptr(unique_ptr&&) = default;







      template<typename _Up, typename _Ep, typename = _Require<
               __safe_conversion_up<_Up, _Ep>,
        typename conditional<is_reference<_Dp>::value,
        is_same<_Ep, _Dp>,
        is_convertible<_Ep, _Dp>>::type>>
 unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept
 : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter()))
 { }


#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

      template<typename _Up, typename = _Require<
        is_convertible<_Up*, _Tp*>, is_same<_Dp, default_delete<_Tp>>>>
 unique_ptr(auto_ptr<_Up>&& __u) noexcept;
#pragma GCC diagnostic pop



      ~unique_ptr() noexcept
      {
 static_assert(__is_invocable<deleter_type&, pointer>::value,
        "unique_ptr's deleter must be invocable with a pointer");
 auto& __ptr = _M_t._M_ptr();
 if (__ptr != nullptr)
   get_deleter()(std::move(__ptr));
 __ptr = pointer();
      }







      unique_ptr& operator=(unique_ptr&&) = default;
# 380 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up, typename _Ep>
        typename enable_if< __and_<
          __safe_conversion_up<_Up, _Ep>,
          is_assignable<deleter_type&, _Ep&&>
          >::value,
          unique_ptr&>::type
 operator=(unique_ptr<_Up, _Ep>&& __u) noexcept
 {
   reset(__u.release());
   get_deleter() = std::forward<_Ep>(__u.get_deleter());
   return *this;
 }


      unique_ptr&
      operator=(nullptr_t) noexcept
      {
 reset();
 return *this;
      }




      typename add_lvalue_reference<element_type>::type
      operator*() const
      {
 do { { if (__builtin_expect(!bool(get() != pointer()), false)) std::__replacement_assert("/usr/include/c++/11/bits/unique_ptr.h", 407, __PRETTY_FUNCTION__, "get() != pointer()"); } } while (false);
 return *get();
      }


      pointer
      operator->() const noexcept
      {
 ;
 return get();
      }


      pointer
      get() const noexcept
      { return _M_t._M_ptr(); }


      deleter_type&
      get_deleter() noexcept
      { return _M_t._M_deleter(); }


      const deleter_type&
      get_deleter() const noexcept
      { return _M_t._M_deleter(); }


      explicit operator bool() const noexcept
      { return get() == pointer() ? false : true; }




      pointer
      release() noexcept
      { return _M_t.release(); }







      void
      reset(pointer __p = pointer()) noexcept
      {
 static_assert(__is_invocable<deleter_type&, pointer>::value,
        "unique_ptr's deleter must be invocable with a pointer");
 _M_t.reset(std::move(__p));
      }


      void
      swap(unique_ptr& __u) noexcept
      {
 static_assert(__is_swappable<_Dp>::value, "deleter must be swappable");
 _M_t.swap(__u._M_t);
      }


      unique_ptr(const unique_ptr&) = delete;
      unique_ptr& operator=(const unique_ptr&) = delete;
  };





  template<typename _Tp, typename _Dp>
    class unique_ptr<_Tp[], _Dp>
    {
      template <typename _Up>
      using _DeleterConstraint =
 typename __uniq_ptr_impl<_Tp, _Up>::_DeleterConstraint::type;

      __uniq_ptr_data<_Tp, _Dp> _M_t;

      template<typename _Up>
 using __remove_cv = typename remove_cv<_Up>::type;


      template<typename _Up>
 using __is_derived_Tp
   = __and_< is_base_of<_Tp, _Up>,
      __not_<is_same<__remove_cv<_Tp>, __remove_cv<_Up>>> >;

    public:
      using pointer = typename __uniq_ptr_impl<_Tp, _Dp>::pointer;
      using element_type = _Tp;
      using deleter_type = _Dp;



      template<typename _Up, typename _Ep,
               typename _UPtr = unique_ptr<_Up, _Ep>,
        typename _UP_pointer = typename _UPtr::pointer,
        typename _UP_element_type = typename _UPtr::element_type>
 using __safe_conversion_up = __and_<
          is_array<_Up>,
          is_same<pointer, element_type*>,
          is_same<_UP_pointer, _UP_element_type*>,
          is_convertible<_UP_element_type(*)[], element_type(*)[]>
        >;


      template<typename _Up>
        using __safe_conversion_raw = __and_<
          __or_<__or_<is_same<_Up, pointer>,
                      is_same<_Up, nullptr_t>>,
                __and_<is_pointer<_Up>,
                       is_same<pointer, element_type*>,
                       is_convertible<
                         typename remove_pointer<_Up>::type(*)[],
                         element_type(*)[]>
                >
          >
        >;




      template<typename _Del = _Dp, typename = _DeleterConstraint<_Del>>
 constexpr unique_ptr() noexcept
 : _M_t()
 { }
# 541 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up,
        typename _Vp = _Dp,
        typename = _DeleterConstraint<_Vp>,
        typename = typename enable_if<
                 __safe_conversion_raw<_Up>::value, bool>::type>
 explicit
 unique_ptr(_Up __p) noexcept
 : _M_t(__p)
        { }
# 559 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up, typename _Del = deleter_type,
        typename = _Require<__safe_conversion_raw<_Up>,
       is_copy_constructible<_Del>>>
      unique_ptr(_Up __p, const deleter_type& __d) noexcept
      : _M_t(__p, __d) { }
# 573 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up, typename _Del = deleter_type,
        typename = _Require<__safe_conversion_raw<_Up>,
       is_move_constructible<_Del>>>
 unique_ptr(_Up __p,
     __enable_if_t<!is_lvalue_reference<_Del>::value,
     _Del&&> __d) noexcept
 : _M_t(std::move(__p), std::move(__d))
 { }

      template<typename _Up, typename _Del = deleter_type,
        typename _DelUnref = typename remove_reference<_Del>::type,
        typename = _Require<__safe_conversion_raw<_Up>>>
 unique_ptr(_Up,
     __enable_if_t<is_lvalue_reference<_Del>::value,
     _DelUnref&&>) = delete;


      unique_ptr(unique_ptr&&) = default;


      template<typename _Del = _Dp, typename = _DeleterConstraint<_Del>>
 constexpr unique_ptr(nullptr_t) noexcept
 : _M_t()
        { }

      template<typename _Up, typename _Ep, typename = _Require<
        __safe_conversion_up<_Up, _Ep>,
        typename conditional<is_reference<_Dp>::value,
        is_same<_Ep, _Dp>,
        is_convertible<_Ep, _Dp>>::type>>
 unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept
 : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter()))
 { }


      ~unique_ptr()
      {
 auto& __ptr = _M_t._M_ptr();
 if (__ptr != nullptr)
   get_deleter()(__ptr);
 __ptr = pointer();
      }







      unique_ptr&
      operator=(unique_ptr&&) = default;
# 632 "/usr/include/c++/11/bits/unique_ptr.h" 3
      template<typename _Up, typename _Ep>
 typename
 enable_if<__and_<__safe_conversion_up<_Up, _Ep>,
                         is_assignable<deleter_type&, _Ep&&>
                  >::value,
                  unique_ptr&>::type
 operator=(unique_ptr<_Up, _Ep>&& __u) noexcept
 {
   reset(__u.release());
   get_deleter() = std::forward<_Ep>(__u.get_deleter());
   return *this;
 }


      unique_ptr&
      operator=(nullptr_t) noexcept
      {
 reset();
 return *this;
      }




      typename std::add_lvalue_reference<element_type>::type
      operator[](size_t __i) const
      {
 do { { if (__builtin_expect(!bool(get() != pointer()), false)) std::__replacement_assert("/usr/include/c++/11/bits/unique_ptr.h", 659, __PRETTY_FUNCTION__, "get() != pointer()"); } } while (false);
 return get()[__i];
      }


      pointer
      get() const noexcept
      { return _M_t._M_ptr(); }


      deleter_type&
      get_deleter() noexcept
      { return _M_t._M_deleter(); }


      const deleter_type&
      get_deleter() const noexcept
      { return _M_t._M_deleter(); }


      explicit operator bool() const noexcept
      { return get() == pointer() ? false : true; }




      pointer
      release() noexcept
      { return _M_t.release(); }







      template <typename _Up,
                typename = _Require<
                  __or_<is_same<_Up, pointer>,
                        __and_<is_same<pointer, element_type*>,
                               is_pointer<_Up>,
                               is_convertible<
                                 typename remove_pointer<_Up>::type(*)[],
                                 element_type(*)[]
                               >
                        >
                  >
               >>
      void
      reset(_Up __p) noexcept
      { _M_t.reset(std::move(__p)); }

      void reset(nullptr_t = nullptr) noexcept
      { reset(pointer()); }


      void
      swap(unique_ptr& __u) noexcept
      {
 static_assert(__is_swappable<_Dp>::value, "deleter must be swappable");
 _M_t.swap(__u._M_t);
      }


      unique_ptr(const unique_ptr&) = delete;
      unique_ptr& operator=(const unique_ptr&) = delete;
    };




  template<typename _Tp, typename _Dp>
    inline




    void

    swap(unique_ptr<_Tp, _Dp>& __x,
  unique_ptr<_Tp, _Dp>& __y) noexcept
    { __x.swap(__y); }
# 750 "/usr/include/c++/11/bits/unique_ptr.h" 3
  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator==(const unique_ptr<_Tp, _Dp>& __x,
        const unique_ptr<_Up, _Ep>& __y)
    { return __x.get() == __y.get(); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
    { return !__x; }



  template<typename _Tp, typename _Dp>
    inline bool
    operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
    { return !__x; }


  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator!=(const unique_ptr<_Tp, _Dp>& __x,
        const unique_ptr<_Up, _Ep>& __y)
    { return __x.get() != __y.get(); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator!=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
    { return (bool)__x; }


  template<typename _Tp, typename _Dp>
    inline bool
    operator!=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
    { return (bool)__x; }



  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator<(const unique_ptr<_Tp, _Dp>& __x,
       const unique_ptr<_Up, _Ep>& __y)
    {
      typedef typename
 std::common_type<typename unique_ptr<_Tp, _Dp>::pointer,
                  typename unique_ptr<_Up, _Ep>::pointer>::type _CT;
      return std::less<_CT>()(__x.get(), __y.get());
    }


  template<typename _Tp, typename _Dp>
    inline bool
    operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
    {
      return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(__x.get(),
         nullptr);
    }


  template<typename _Tp, typename _Dp>
    inline bool
    operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
    {
      return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(nullptr,
         __x.get());
    }


  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator<=(const unique_ptr<_Tp, _Dp>& __x,
        const unique_ptr<_Up, _Ep>& __y)
    { return !(__y < __x); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator<=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
    { return !(nullptr < __x); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator<=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
    { return !(__x < nullptr); }


  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator>(const unique_ptr<_Tp, _Dp>& __x,
       const unique_ptr<_Up, _Ep>& __y)
    { return (__y < __x); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
    {
      return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(nullptr,
         __x.get());
    }


  template<typename _Tp, typename _Dp>
    inline bool
    operator>(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
    {
      return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(__x.get(),
         nullptr);
    }


  template<typename _Tp, typename _Dp,
    typename _Up, typename _Ep>
    inline bool
    operator>=(const unique_ptr<_Tp, _Dp>& __x,
        const unique_ptr<_Up, _Ep>& __y)
    { return !(__x < __y); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator>=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
    { return !(__x < nullptr); }


  template<typename _Tp, typename _Dp>
    inline bool
    operator>=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
    { return !(nullptr < __x); }
# 912 "/usr/include/c++/11/bits/unique_ptr.h" 3
  template<typename _Up, typename _Ptr = typename _Up::pointer,
    bool = __poison_hash<_Ptr>::__enable_hash_call>
    struct __uniq_ptr_hash

    : private __poison_hash<_Ptr>

    {
      size_t
      operator()(const _Up& __u) const
      noexcept(noexcept(std::declval<hash<_Ptr>>()(std::declval<_Ptr>())))
      { return hash<_Ptr>()(__u.get()); }
    };

  template<typename _Up, typename _Ptr>
    struct __uniq_ptr_hash<_Up, _Ptr, false>
    : private __poison_hash<_Ptr>
    { };



  template<typename _Tp, typename _Dp>
    struct hash<unique_ptr<_Tp, _Dp>>
    : public __hash_base<size_t, unique_ptr<_Tp, _Dp>>,
      public __uniq_ptr_hash<unique_ptr<_Tp, _Dp>>
    { };
# 1028 "/usr/include/c++/11/bits/unique_ptr.h" 3

}
# 77 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/shared_ptr.h" 1 3
# 52 "/usr/include/c++/11/bits/shared_ptr.h" 3
# 1 "/usr/include/c++/11/iosfwd" 1 3
# 36 "/usr/include/c++/11/iosfwd" 3
       
# 37 "/usr/include/c++/11/iosfwd" 3


# 1 "/usr/include/c++/11/bits/stringfwd.h" 1 3
# 37 "/usr/include/c++/11/bits/stringfwd.h" 3
       
# 38 "/usr/include/c++/11/bits/stringfwd.h" 3




namespace std __attribute__ ((__visibility__ ("default")))
{








  template<class _CharT>
    struct char_traits;

  template<> struct char_traits<char>;


  template<> struct char_traits<wchar_t>;







  template<> struct char_traits<char16_t>;
  template<> struct char_traits<char32_t>;


namespace __cxx11 {

  template<typename _CharT, typename _Traits = char_traits<_CharT>,
           typename _Alloc = allocator<_CharT> >
    class basic_string;

}


  typedef basic_string<char> string;



  typedef basic_string<wchar_t> wstring;
# 93 "/usr/include/c++/11/bits/stringfwd.h" 3
  typedef basic_string<char16_t> u16string;


  typedef basic_string<char32_t> u32string;





}
# 40 "/usr/include/c++/11/iosfwd" 2 3
# 1 "/usr/include/c++/11/bits/postypes.h" 1 3
# 38 "/usr/include/c++/11/bits/postypes.h" 3
       
# 39 "/usr/include/c++/11/bits/postypes.h" 3

# 1 "/usr/include/c++/11/cwchar" 1 3
# 39 "/usr/include/c++/11/cwchar" 3
       
# 40 "/usr/include/c++/11/cwchar" 3




# 1 "/usr/include/wchar.h" 1 3 4
# 27 "/usr/include/wchar.h" 3 4
# 1 "/usr/include/bits/libc-header-start.h" 1 3 4
# 28 "/usr/include/wchar.h" 2 3 4







# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 36 "/usr/include/wchar.h" 2 3 4


# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdarg.h" 1 3 4
# 40 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 39 "/usr/include/wchar.h" 2 3 4


# 1 "/usr/include/bits/types/wint_t.h" 1 3 4
# 20 "/usr/include/bits/types/wint_t.h" 3 4
typedef unsigned int wint_t;
# 42 "/usr/include/wchar.h" 2 3 4
# 1 "/usr/include/bits/types/mbstate_t.h" 1 3 4



# 1 "/usr/include/bits/types/__mbstate_t.h" 1 3 4
# 13 "/usr/include/bits/types/__mbstate_t.h" 3 4
typedef struct
{
  int __count;
  union
  {
    unsigned int __wch;
    char __wchb[4];
  } __value;
} __mbstate_t;
# 5 "/usr/include/bits/types/mbstate_t.h" 2 3 4

typedef __mbstate_t mbstate_t;
# 43 "/usr/include/wchar.h" 2 3 4
# 1 "/usr/include/bits/types/__FILE.h" 1 3 4



struct _IO_FILE;
typedef struct _IO_FILE __FILE;
# 44 "/usr/include/wchar.h" 2 3 4


# 1 "/usr/include/bits/types/FILE.h" 1 3 4



struct _IO_FILE;


typedef struct _IO_FILE FILE;
# 47 "/usr/include/wchar.h" 2 3 4
# 79 "/usr/include/wchar.h" 3 4
extern "C" {



struct tm;



extern wchar_t *wcscpy (wchar_t *__restrict __dest,
   const wchar_t *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
    const wchar_t *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern wchar_t *wcscat (wchar_t *__restrict __dest,
   const wchar_t *__restrict __src)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern wchar_t *wcsncat (wchar_t *__restrict __dest,
    const wchar_t *__restrict __src, size_t __n)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int wcscmp (const wchar_t *__s1, const wchar_t *__s2)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));

extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));



extern int wcscasecmp (const wchar_t *__s1, const wchar_t *__s2) noexcept (true);


extern int wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
   size_t __n) noexcept (true);



extern int wcscasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
    locale_t __loc) noexcept (true);

extern int wcsncasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
     size_t __n, locale_t __loc) noexcept (true);




extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) noexcept (true);



extern size_t wcsxfrm (wchar_t *__restrict __s1,
         const wchar_t *__restrict __s2, size_t __n) noexcept (true);







extern int wcscoll_l (const wchar_t *__s1, const wchar_t *__s2,
        locale_t __loc) noexcept (true);




extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2,
    size_t __n, locale_t __loc) noexcept (true);


extern wchar_t *wcsdup (const wchar_t *__s) noexcept (true) __attribute__ ((__malloc__));




extern "C++" wchar_t *wcschr (wchar_t *__wcs, wchar_t __wc)
     noexcept (true) __asm ("wcschr") __attribute__ ((__pure__));
extern "C++" const wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc)
     noexcept (true) __asm ("wcschr") __attribute__ ((__pure__));






extern "C++" wchar_t *wcsrchr (wchar_t *__wcs, wchar_t __wc)
     noexcept (true) __asm ("wcsrchr") __attribute__ ((__pure__));
extern "C++" const wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
     noexcept (true) __asm ("wcsrchr") __attribute__ ((__pure__));
# 181 "/usr/include/wchar.h" 3 4
extern wchar_t *wcschrnul (const wchar_t *__s, wchar_t __wc)
     noexcept (true) __attribute__ ((__pure__));




extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject)
     noexcept (true) __attribute__ ((__pure__));


extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept)
     noexcept (true) __attribute__ ((__pure__));


extern "C++" wchar_t *wcspbrk (wchar_t *__wcs, const wchar_t *__accept)
     noexcept (true) __asm ("wcspbrk") __attribute__ ((__pure__));
extern "C++" const wchar_t *wcspbrk (const wchar_t *__wcs,
         const wchar_t *__accept)
     noexcept (true) __asm ("wcspbrk") __attribute__ ((__pure__));






extern "C++" wchar_t *wcsstr (wchar_t *__haystack, const wchar_t *__needle)
     noexcept (true) __asm ("wcsstr") __attribute__ ((__pure__));
extern "C++" const wchar_t *wcsstr (const wchar_t *__haystack,
        const wchar_t *__needle)
     noexcept (true) __asm ("wcsstr") __attribute__ ((__pure__));






extern wchar_t *wcstok (wchar_t *__restrict __s,
   const wchar_t *__restrict __delim,
   wchar_t **__restrict __ptr) noexcept (true);


extern size_t wcslen (const wchar_t *__s) noexcept (true) __attribute__ ((__pure__));




extern "C++" wchar_t *wcswcs (wchar_t *__haystack, const wchar_t *__needle)
     noexcept (true) __asm ("wcswcs") __attribute__ ((__pure__));
extern "C++" const wchar_t *wcswcs (const wchar_t *__haystack,
        const wchar_t *__needle)
     noexcept (true) __asm ("wcswcs") __attribute__ ((__pure__));
# 240 "/usr/include/wchar.h" 3 4
extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen)
     noexcept (true) __attribute__ ((__pure__));





extern "C++" wchar_t *wmemchr (wchar_t *__s, wchar_t __c, size_t __n)
     noexcept (true) __asm ("wmemchr") __attribute__ ((__pure__));
extern "C++" const wchar_t *wmemchr (const wchar_t *__s, wchar_t __c,
         size_t __n)
     noexcept (true) __asm ("wmemchr") __attribute__ ((__pure__));






extern int wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
     noexcept (true) __attribute__ ((__pure__));


extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
    const wchar_t *__restrict __s2, size_t __n) noexcept (true);



extern wchar_t *wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)
     noexcept (true);


extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) noexcept (true);




extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
     const wchar_t *__restrict __s2, size_t __n)
     noexcept (true);





extern wint_t btowc (int __c) noexcept (true);



extern int wctob (wint_t __c) noexcept (true);



extern int mbsinit (const mbstate_t *__ps) noexcept (true) __attribute__ ((__pure__));



extern size_t mbrtowc (wchar_t *__restrict __pwc,
         const char *__restrict __s, size_t __n,
         mbstate_t *__restrict __p) noexcept (true);


extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
         mbstate_t *__restrict __ps) noexcept (true);


extern size_t __mbrlen (const char *__restrict __s, size_t __n,
   mbstate_t *__restrict __ps) noexcept (true);
extern size_t mbrlen (const char *__restrict __s, size_t __n,
        mbstate_t *__restrict __ps) noexcept (true);







extern wint_t __btowc_alias (int __c) __asm ("btowc");
extern __inline __attribute__ ((__gnu_inline__)) wint_t
__attribute__ ((__leaf__)) btowc (int __c) noexcept (true)
{ return (__builtin_constant_p (__c) && __c >= '\0' && __c <= '\x7f'
   ? (wint_t) __c : __btowc_alias (__c)); }

extern int __wctob_alias (wint_t __c) __asm ("wctob");
extern __inline __attribute__ ((__gnu_inline__)) int
__attribute__ ((__leaf__)) wctob (wint_t __wc) noexcept (true)
{ return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
   ? (int) __wc : __wctob_alias (__wc)); }

extern __inline __attribute__ ((__gnu_inline__)) size_t
__attribute__ ((__leaf__)) mbrlen (const char *__restrict __s, size_t __n, mbstate_t *__restrict __ps) noexcept (true)

{ return (__ps != __null
   ? mbrtowc (__null, __s, __n, __ps) : __mbrlen (__s, __n, __null)); }




extern size_t mbsrtowcs (wchar_t *__restrict __dst,
    const char **__restrict __src, size_t __len,
    mbstate_t *__restrict __ps) noexcept (true);



extern size_t wcsrtombs (char *__restrict __dst,
    const wchar_t **__restrict __src, size_t __len,
    mbstate_t *__restrict __ps) noexcept (true);





extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
     const char **__restrict __src, size_t __nmc,
     size_t __len, mbstate_t *__restrict __ps) noexcept (true);



extern size_t wcsnrtombs (char *__restrict __dst,
     const wchar_t **__restrict __src,
     size_t __nwc, size_t __len,
     mbstate_t *__restrict __ps) noexcept (true);






extern int wcwidth (wchar_t __c) noexcept (true);



extern int wcswidth (const wchar_t *__s, size_t __n) noexcept (true);





extern double wcstod (const wchar_t *__restrict __nptr,
        wchar_t **__restrict __endptr) noexcept (true);



extern float wcstof (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr) noexcept (true);
extern long double wcstold (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr) noexcept (true);
# 396 "/usr/include/wchar.h" 3 4
extern _Float32 wcstof32 (const wchar_t *__restrict __nptr,
     wchar_t **__restrict __endptr) noexcept (true);



extern _Float64 wcstof64 (const wchar_t *__restrict __nptr,
     wchar_t **__restrict __endptr) noexcept (true);



extern _Float128 wcstof128 (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr) noexcept (true);



extern _Float32x wcstof32x (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr) noexcept (true);



extern _Float64x wcstof64x (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr) noexcept (true);
# 428 "/usr/include/wchar.h" 3 4
extern long int wcstol (const wchar_t *__restrict __nptr,
   wchar_t **__restrict __endptr, int __base) noexcept (true);



extern unsigned long int wcstoul (const wchar_t *__restrict __nptr,
      wchar_t **__restrict __endptr, int __base)
     noexcept (true);




__extension__
extern long long int wcstoll (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr, int __base)
     noexcept (true);



__extension__
extern unsigned long long int wcstoull (const wchar_t *__restrict __nptr,
     wchar_t **__restrict __endptr,
     int __base) noexcept (true);





__extension__
extern long long int wcstoq (const wchar_t *__restrict __nptr,
        wchar_t **__restrict __endptr, int __base)
     noexcept (true);



__extension__
extern unsigned long long int wcstouq (const wchar_t *__restrict __nptr,
           wchar_t **__restrict __endptr,
           int __base) noexcept (true);






extern long int wcstol_l (const wchar_t *__restrict __nptr,
     wchar_t **__restrict __endptr, int __base,
     locale_t __loc) noexcept (true);

extern unsigned long int wcstoul_l (const wchar_t *__restrict __nptr,
        wchar_t **__restrict __endptr,
        int __base, locale_t __loc) noexcept (true);

__extension__
extern long long int wcstoll_l (const wchar_t *__restrict __nptr,
    wchar_t **__restrict __endptr,
    int __base, locale_t __loc) noexcept (true);

__extension__
extern unsigned long long int wcstoull_l (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr,
       int __base, locale_t __loc)
     noexcept (true);

extern double wcstod_l (const wchar_t *__restrict __nptr,
   wchar_t **__restrict __endptr, locale_t __loc)
     noexcept (true);

extern float wcstof_l (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr, locale_t __loc)
     noexcept (true);

extern long double wcstold_l (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr,
         locale_t __loc) noexcept (true);
# 511 "/usr/include/wchar.h" 3 4
extern _Float32 wcstof32_l (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr,
       locale_t __loc) noexcept (true);



extern _Float64 wcstof64_l (const wchar_t *__restrict __nptr,
       wchar_t **__restrict __endptr,
       locale_t __loc) noexcept (true);



extern _Float128 wcstof128_l (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr,
         locale_t __loc) noexcept (true);



extern _Float32x wcstof32x_l (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr,
         locale_t __loc) noexcept (true);



extern _Float64x wcstof64x_l (const wchar_t *__restrict __nptr,
         wchar_t **__restrict __endptr,
         locale_t __loc) noexcept (true);
# 551 "/usr/include/wchar.h" 3 4
extern wchar_t *wcpcpy (wchar_t *__restrict __dest,
   const wchar_t *__restrict __src) noexcept (true);



extern wchar_t *wcpncpy (wchar_t *__restrict __dest,
    const wchar_t *__restrict __src, size_t __n)
     noexcept (true);
# 567 "/usr/include/wchar.h" 3 4
extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) noexcept (true);





extern int fwide (__FILE *__fp, int __mode) noexcept (true);






extern int fwprintf (__FILE *__restrict __stream,
       const wchar_t *__restrict __format, ...)
                                                           ;




extern int wprintf (const wchar_t *__restrict __format, ...)
                                                           ;

extern int swprintf (wchar_t *__restrict __s, size_t __n,
       const wchar_t *__restrict __format, ...)
     noexcept (true) ;





extern int vfwprintf (__FILE *__restrict __s,
        const wchar_t *__restrict __format,
        __gnuc_va_list __arg)
                                                           ;




extern int vwprintf (const wchar_t *__restrict __format,
       __gnuc_va_list __arg)
                                                           ;


extern int vswprintf (wchar_t *__restrict __s, size_t __n,
        const wchar_t *__restrict __format,
        __gnuc_va_list __arg)
     noexcept (true) ;






extern int fwscanf (__FILE *__restrict __stream,
      const wchar_t *__restrict __format, ...)
                                                          ;




extern int wscanf (const wchar_t *__restrict __format, ...)
                                                          ;

extern int swscanf (const wchar_t *__restrict __s,
      const wchar_t *__restrict __format, ...)
     noexcept (true) ;
# 642 "/usr/include/wchar.h" 3 4
extern int fwscanf (__FILE *__restrict __stream, const wchar_t *__restrict __format, ...) __asm__ ("" "__isoc99_fwscanf")


                                                          ;
extern int wscanf (const wchar_t *__restrict __format, ...) __asm__ ("" "__isoc99_wscanf")

                                                          ;
extern int swscanf (const wchar_t *__restrict __s, const wchar_t *__restrict __format, ...) noexcept (true) __asm__ ("" "__isoc99_swscanf")


                                                          ;
# 673 "/usr/include/wchar.h" 3 4
extern int vfwscanf (__FILE *__restrict __s,
       const wchar_t *__restrict __format,
       __gnuc_va_list __arg)
                                                          ;




extern int vwscanf (const wchar_t *__restrict __format,
      __gnuc_va_list __arg)
                                                          ;

extern int vswscanf (const wchar_t *__restrict __s,
       const wchar_t *__restrict __format,
       __gnuc_va_list __arg)
     noexcept (true) ;







extern int vfwscanf (__FILE *__restrict __s, const wchar_t *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vfwscanf")


                                                          ;
extern int vwscanf (const wchar_t *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vwscanf")

                                                          ;
extern int vswscanf (const wchar_t *__restrict __s, const wchar_t *__restrict __format, __gnuc_va_list __arg) noexcept (true) __asm__ ("" "__isoc99_vswscanf")


                                                          ;
# 729 "/usr/include/wchar.h" 3 4
extern wint_t fgetwc (__FILE *__stream);
extern wint_t getwc (__FILE *__stream);





extern wint_t getwchar (void);






extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
extern wint_t putwc (wchar_t __wc, __FILE *__stream);





extern wint_t putwchar (wchar_t __wc);







extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
   __FILE *__restrict __stream);





extern int fputws (const wchar_t *__restrict __ws,
     __FILE *__restrict __stream);






extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
# 784 "/usr/include/wchar.h" 3 4
extern wint_t getwc_unlocked (__FILE *__stream);
extern wint_t getwchar_unlocked (void);







extern wint_t fgetwc_unlocked (__FILE *__stream);







extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
# 810 "/usr/include/wchar.h" 3 4
extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
extern wint_t putwchar_unlocked (wchar_t __wc);
# 820 "/usr/include/wchar.h" 3 4
extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
     __FILE *__restrict __stream);







extern int fputws_unlocked (const wchar_t *__restrict __ws,
       __FILE *__restrict __stream);






extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
   const wchar_t *__restrict __format,
   const struct tm *__restrict __tp) noexcept (true);




extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
     const wchar_t *__restrict __format,
     const struct tm *__restrict __tp,
     locale_t __loc) noexcept (true);




# 1 "/usr/include/bits/wchar2.h" 1 3 4
# 24 "/usr/include/bits/wchar2.h" 3 4
extern wchar_t *__wmemcpy_chk (wchar_t *__restrict __s1,
          const wchar_t *__restrict __s2, size_t __n,
          size_t __ns1) noexcept (true);
extern wchar_t *__wmemcpy_alias (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n) noexcept (true) __asm__ ("" "wmemcpy")


            ;
extern wchar_t *__wmemcpy_chk_warn (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1) noexcept (true) __asm__ ("" "__wmemcpy_chk")



     __attribute__((__warning__ ("wmemcpy called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wmemcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n) noexcept (true)

{
  if (__builtin_object_size (__s1, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wmemcpy_chk (__s1, __s2, __n,
         __builtin_object_size (__s1, 0) / sizeof (wchar_t));

      if (__n > __builtin_object_size (__s1, 0) / sizeof (wchar_t))
 return __wmemcpy_chk_warn (__s1, __s2, __n,
       __builtin_object_size (__s1, 0) / sizeof (wchar_t));
    }
  return __wmemcpy_alias (__s1, __s2, __n);
}


extern wchar_t *__wmemmove_chk (wchar_t *__s1, const wchar_t *__s2,
    size_t __n, size_t __ns1) noexcept (true);
extern wchar_t *__wmemmove_alias (wchar_t *__s1, const wchar_t *__s2, size_t __n) noexcept (true) __asm__ ("" "wmemmove")

                               ;
extern wchar_t *__wmemmove_chk_warn (wchar_t *__s1, const wchar_t *__s2, size_t __n, size_t __ns1) noexcept (true) __asm__ ("" "__wmemmove_chk")


     __attribute__((__warning__ ("wmemmove called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n) noexcept (true)
{
  if (__builtin_object_size (__s1, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wmemmove_chk (__s1, __s2, __n,
          __builtin_object_size (__s1, 0) / sizeof (wchar_t));

      if (__n > __builtin_object_size (__s1, 0) / sizeof (wchar_t))
 return __wmemmove_chk_warn (__s1, __s2, __n,
        __builtin_object_size (__s1, 0) / sizeof (wchar_t));
    }
  return __wmemmove_alias (__s1, __s2, __n);
}



extern wchar_t *__wmempcpy_chk (wchar_t *__restrict __s1,
    const wchar_t *__restrict __s2, size_t __n,
    size_t __ns1) noexcept (true);
extern wchar_t *__wmempcpy_alias (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n) noexcept (true) __asm__ ("" "wmempcpy")


                           ;
extern wchar_t *__wmempcpy_chk_warn (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1) noexcept (true) __asm__ ("" "__wmempcpy_chk")



     __attribute__((__warning__ ("wmempcpy called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wmempcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n) noexcept (true)

{
  if (__builtin_object_size (__s1, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wmempcpy_chk (__s1, __s2, __n,
          __builtin_object_size (__s1, 0) / sizeof (wchar_t));

      if (__n > __builtin_object_size (__s1, 0) / sizeof (wchar_t))
 return __wmempcpy_chk_warn (__s1, __s2, __n,
        __builtin_object_size (__s1, 0) / sizeof (wchar_t));
    }
  return __wmempcpy_alias (__s1, __s2, __n);
}



extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
          size_t __ns) noexcept (true);
extern wchar_t *__wmemset_alias (wchar_t *__s, wchar_t __c, size_t __n) noexcept (true) __asm__ ("" "wmemset")
                             ;
extern wchar_t *__wmemset_chk_warn (wchar_t *__s, wchar_t __c, size_t __n, size_t __ns) noexcept (true) __asm__ ("" "__wmemset_chk")


     __attribute__((__warning__ ("wmemset called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wmemset (wchar_t *__s, wchar_t __c, size_t __n) noexcept (true)
{
  if (__builtin_object_size (__s, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wmemset_chk (__s, __c, __n, __builtin_object_size (__s, 0) / sizeof (wchar_t));

      if (__n > __builtin_object_size (__s, 0) / sizeof (wchar_t))
 return __wmemset_chk_warn (__s, __c, __n,
       __builtin_object_size (__s, 0) / sizeof (wchar_t));
    }
  return __wmemset_alias (__s, __c, __n);
}


extern wchar_t *__wcscpy_chk (wchar_t *__restrict __dest,
         const wchar_t *__restrict __src,
         size_t __n) noexcept (true);
extern wchar_t *__wcscpy_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true) __asm__ ("" "wcscpy")

                                              ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcscpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true)
{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    return __wcscpy_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
  return __wcscpy_alias (__dest, __src);
}


extern wchar_t *__wcpcpy_chk (wchar_t *__restrict __dest,
         const wchar_t *__restrict __src,
         size_t __destlen) noexcept (true);
extern wchar_t *__wcpcpy_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true) __asm__ ("" "wcpcpy")

                                              ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcpcpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true)
{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    return __wcpcpy_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
  return __wcpcpy_alias (__dest, __src);
}


extern wchar_t *__wcsncpy_chk (wchar_t *__restrict __dest,
          const wchar_t *__restrict __src, size_t __n,
          size_t __destlen) noexcept (true);
extern wchar_t *__wcsncpy_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true) __asm__ ("" "wcsncpy")


                          ;
extern wchar_t *__wcsncpy_chk_warn (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen) noexcept (true) __asm__ ("" "__wcsncpy_chk")



     __attribute__((__warning__ ("wcsncpy called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcsncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true)

{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wcsncpy_chk (__dest, __src, __n,
         __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
      if (__n > __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t))
 return __wcsncpy_chk_warn (__dest, __src, __n,
       __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
    }
  return __wcsncpy_alias (__dest, __src, __n);
}


extern wchar_t *__wcpncpy_chk (wchar_t *__restrict __dest,
          const wchar_t *__restrict __src, size_t __n,
          size_t __destlen) noexcept (true);
extern wchar_t *__wcpncpy_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true) __asm__ ("" "wcpncpy")


                          ;
extern wchar_t *__wcpncpy_chk_warn (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen) noexcept (true) __asm__ ("" "__wcpncpy_chk")



     __attribute__((__warning__ ("wcpncpy called with length bigger than size of destination " "buffer")))
            ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcpncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true)

{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n))
 return __wcpncpy_chk (__dest, __src, __n,
         __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
      if (__n > __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t))
 return __wcpncpy_chk_warn (__dest, __src, __n,
       __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
    }
  return __wcpncpy_alias (__dest, __src, __n);
}


extern wchar_t *__wcscat_chk (wchar_t *__restrict __dest,
         const wchar_t *__restrict __src,
         size_t __destlen) noexcept (true);
extern wchar_t *__wcscat_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true) __asm__ ("" "wcscat")

                                              ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcscat (wchar_t *__restrict __dest, const wchar_t *__restrict __src) noexcept (true)
{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    return __wcscat_chk (__dest, __src, __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
  return __wcscat_alias (__dest, __src);
}


extern wchar_t *__wcsncat_chk (wchar_t *__restrict __dest,
          const wchar_t *__restrict __src,
          size_t __n, size_t __destlen) noexcept (true);
extern wchar_t *__wcsncat_alias (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true) __asm__ ("" "wcsncat")


                          ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) wchar_t *
__attribute__ ((__leaf__)) wcsncat (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) noexcept (true)

{
  if (__builtin_object_size (__dest, 2 > 1) != (size_t) -1)
    return __wcsncat_chk (__dest, __src, __n,
     __builtin_object_size (__dest, 2 > 1) / sizeof (wchar_t));
  return __wcsncat_alias (__dest, __src, __n);
}


extern int __swprintf_chk (wchar_t *__restrict __s, size_t __n,
      int __flag, size_t __s_len,
      const wchar_t *__restrict __format, ...)
     noexcept (true) ;

extern int __swprintf_alias (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, ...) noexcept (true) __asm__ ("" "swprintf")


             ;


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) swprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, ...) noexcept (true)

{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1 || 2 > 1)
    return __swprintf_chk (__s, __n, 2 - 1,
      __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t),
      __fmt, __builtin_va_arg_pack ());
  return __swprintf_alias (__s, __n, __fmt, __builtin_va_arg_pack ());
}
# 303 "/usr/include/bits/wchar2.h" 3 4
extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n,
       int __flag, size_t __s_len,
       const wchar_t *__restrict __format,
       __gnuc_va_list __arg)
     noexcept (true) ;

extern int __vswprintf_alias (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, __gnuc_va_list __ap) noexcept (true) __asm__ ("" "vswprintf")


                                     ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) vswprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, __gnuc_va_list __ap) noexcept (true)

{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1 || 2 > 1)
    return __vswprintf_chk (__s, __n, 2 - 1,
       __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t), __fmt, __ap);
  return __vswprintf_alias (__s, __n, __fmt, __ap);
}




extern int __fwprintf_chk (__FILE *__restrict __stream, int __flag,
      const wchar_t *__restrict __format, ...);
extern int __wprintf_chk (int __flag, const wchar_t *__restrict __format,
     ...);
extern int __vfwprintf_chk (__FILE *__restrict __stream, int __flag,
       const wchar_t *__restrict __format,
       __gnuc_va_list __ap);
extern int __vwprintf_chk (int __flag, const wchar_t *__restrict __format,
      __gnuc_va_list __ap);


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
wprintf (const wchar_t *__restrict __fmt, ...)
{
  return __wprintf_chk (2 - 1, __fmt, __builtin_va_arg_pack ());
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
fwprintf (__FILE *__restrict __stream, const wchar_t *__restrict __fmt, ...)
{
  return __fwprintf_chk (__stream, 2 - 1, __fmt,
    __builtin_va_arg_pack ());
}







extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
vwprintf (const wchar_t *__restrict __fmt, __gnuc_va_list __ap)
{
  return __vwprintf_chk (2 - 1, __fmt, __ap);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
vfwprintf (__FILE *__restrict __stream,
    const wchar_t *__restrict __fmt, __gnuc_va_list __ap)
{
  return __vfwprintf_chk (__stream, 2 - 1, __fmt, __ap);
}



extern wchar_t *__fgetws_chk (wchar_t *__restrict __s, size_t __size, int __n,
         __FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
extern wchar_t *__fgetws_alias (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) __asm__ ("" "fgetws")

                                              __attribute__ ((__warn_unused_result__));
extern wchar_t *__fgetws_chk_warn (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream) __asm__ ("" "__fgetws_chk")


     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fgetws called with bigger size than length " "of destination buffer")))
                                 ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) wchar_t *
fgetws (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n) || __n <= 0)
 return __fgetws_chk (__s, __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t),
        __n, __stream);

      if ((size_t) __n > __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t))
 return __fgetws_chk_warn (__s, __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t),
      __n, __stream);
    }
  return __fgetws_alias (__s, __n, __stream);
}


extern wchar_t *__fgetws_unlocked_chk (wchar_t *__restrict __s, size_t __size,
           int __n, __FILE *__restrict __stream)
  __attribute__ ((__warn_unused_result__));
extern wchar_t *__fgetws_unlocked_alias (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) __asm__ ("" "fgetws_unlocked")


  __attribute__ ((__warn_unused_result__));
extern wchar_t *__fgetws_unlocked_chk_warn (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream) __asm__ ("" "__fgetws_unlocked_chk")



     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fgetws_unlocked called with bigger size than length " "of destination buffer")))
                                 ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) wchar_t *
fgetws_unlocked (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n) || __n <= 0)
 return __fgetws_unlocked_chk (__s, __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t),
          __n, __stream);

      if ((size_t) __n > __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t))
 return __fgetws_unlocked_chk_warn (__s, __builtin_object_size (__s, 2 > 1) / sizeof (wchar_t),
        __n, __stream);
    }
  return __fgetws_unlocked_alias (__s, __n, __stream);
}



extern size_t __wcrtomb_chk (char *__restrict __s, wchar_t __wchar,
        mbstate_t *__restrict __p,
        size_t __buflen) noexcept (true) __attribute__ ((__warn_unused_result__));
extern size_t __wcrtomb_alias (char *__restrict __s, wchar_t __wchar, mbstate_t *__restrict __ps) noexcept (true) __asm__ ("" "wcrtomb")

                                                __attribute__ ((__warn_unused_result__));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) size_t
__attribute__ ((__leaf__)) wcrtomb (char *__restrict __s, wchar_t __wchar, mbstate_t *__restrict __ps) noexcept (true)

{







  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1 && 16 > __builtin_object_size (__s, 2 > 1))
    return __wcrtomb_chk (__s, __wchar, __ps, __builtin_object_size (__s, 2 > 1));
  return __wcrtomb_alias (__s, __wchar, __ps);
}


extern size_t __mbsrtowcs_chk (wchar_t *__restrict __dst,
          const char **__restrict __src,
          size_t __len, mbstate_t *__restrict __ps,
          size_t __dstlen) noexcept (true);
extern size_t __mbsrtowcs_alias (wchar_t *__restrict __dst, const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps) noexcept (true) __asm__ ("" "mbsrtowcs")



                   ;
extern size_t __mbsrtowcs_chk_warn (wchar_t *__restrict __dst, const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) noexcept (true) __asm__ ("" "__mbsrtowcs_chk")




     __attribute__((__warning__ ("mbsrtowcs called with dst buffer smaller than len " "* sizeof (wchar_t)")))
                        ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) mbsrtowcs (wchar_t *__restrict __dst, const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __mbsrtowcs_chk (__dst, __src, __len, __ps,
    __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));

      if (__len > __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t))
 return __mbsrtowcs_chk_warn (__dst, __src, __len, __ps,
         __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));
    }
  return __mbsrtowcs_alias (__dst, __src, __len, __ps);
}


extern size_t __wcsrtombs_chk (char *__restrict __dst,
          const wchar_t **__restrict __src,
          size_t __len, mbstate_t *__restrict __ps,
          size_t __dstlen) noexcept (true);
extern size_t __wcsrtombs_alias (char *__restrict __dst, const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps) noexcept (true) __asm__ ("" "wcsrtombs")



                   ;
extern size_t __wcsrtombs_chk_warn (char *__restrict __dst, const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) noexcept (true) __asm__ ("" "__wcsrtombs_chk")




    __attribute__((__warning__ ("wcsrtombs called with dst buffer smaller than len")));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) wcsrtombs (char *__restrict __dst, const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __wcsrtombs_chk (__dst, __src, __len, __ps, __builtin_object_size (__dst, 2 > 1));

      if (__len > __builtin_object_size (__dst, 2 > 1))
 return __wcsrtombs_chk_warn (__dst, __src, __len, __ps, __builtin_object_size (__dst, 2 > 1));
    }
  return __wcsrtombs_alias (__dst, __src, __len, __ps);
}



extern size_t __mbsnrtowcs_chk (wchar_t *__restrict __dst,
    const char **__restrict __src, size_t __nmc,
    size_t __len, mbstate_t *__restrict __ps,
    size_t __dstlen) noexcept (true);
extern size_t __mbsnrtowcs_alias (wchar_t *__restrict __dst, const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps) noexcept (true) __asm__ ("" "mbsnrtowcs")



                    ;
extern size_t __mbsnrtowcs_chk_warn (wchar_t *__restrict __dst, const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) noexcept (true) __asm__ ("" "__mbsnrtowcs_chk")




     __attribute__((__warning__ ("mbsnrtowcs called with dst buffer smaller than len " "* sizeof (wchar_t)")))
                        ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) mbsnrtowcs (wchar_t *__restrict __dst, const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __mbsnrtowcs_chk (__dst, __src, __nmc, __len, __ps,
     __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));

      if (__len > __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t))
 return __mbsnrtowcs_chk_warn (__dst, __src, __nmc, __len, __ps,
          __builtin_object_size (__dst, 2 > 1) / sizeof (wchar_t));
    }
  return __mbsnrtowcs_alias (__dst, __src, __nmc, __len, __ps);
}


extern size_t __wcsnrtombs_chk (char *__restrict __dst,
    const wchar_t **__restrict __src,
    size_t __nwc, size_t __len,
    mbstate_t *__restrict __ps, size_t __dstlen)
     noexcept (true);
extern size_t __wcsnrtombs_alias (char *__restrict __dst, const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps) noexcept (true) __asm__ ("" "wcsnrtombs")



                                                  ;
extern size_t __wcsnrtombs_chk_warn (char *__restrict __dst, const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) noexcept (true) __asm__ ("" "__wcsnrtombs_chk")





     __attribute__((__warning__ ("wcsnrtombs called with dst buffer smaller than len")));

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) size_t
__attribute__ ((__leaf__)) wcsnrtombs (char *__restrict __dst, const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps) noexcept (true)

{
  if (__builtin_object_size (__dst, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__len))
 return __wcsnrtombs_chk (__dst, __src, __nwc, __len, __ps,
     __builtin_object_size (__dst, 2 > 1));

      if (__len > __builtin_object_size (__dst, 2 > 1))
 return __wcsnrtombs_chk_warn (__dst, __src, __nwc, __len, __ps,
          __builtin_object_size (__dst, 2 > 1));
    }
  return __wcsnrtombs_alias (__dst, __src, __nwc, __len, __ps);
}
# 853 "/usr/include/wchar.h" 2 3 4







}
# 45 "/usr/include/c++/11/cwchar" 2 3
# 62 "/usr/include/c++/11/cwchar" 3
namespace std
{
  using ::mbstate_t;
}
# 135 "/usr/include/c++/11/cwchar" 3
extern "C++"
{
namespace std __attribute__ ((__visibility__ ("default")))
{


  using ::wint_t;

  using ::btowc;
  using ::fgetwc;
  using ::fgetws;
  using ::fputwc;
  using ::fputws;
  using ::fwide;
  using ::fwprintf;
  using ::fwscanf;
  using ::getwc;
  using ::getwchar;
  using ::mbrlen;
  using ::mbrtowc;
  using ::mbsinit;
  using ::mbsrtowcs;
  using ::putwc;
  using ::putwchar;

  using ::swprintf;

  using ::swscanf;
  using ::ungetwc;
  using ::vfwprintf;

  using ::vfwscanf;


  using ::vswprintf;


  using ::vswscanf;

  using ::vwprintf;

  using ::vwscanf;

  using ::wcrtomb;
  using ::wcscat;
  using ::wcscmp;
  using ::wcscoll;
  using ::wcscpy;
  using ::wcscspn;
  using ::wcsftime;
  using ::wcslen;
  using ::wcsncat;
  using ::wcsncmp;
  using ::wcsncpy;
  using ::wcsrtombs;
  using ::wcsspn;
  using ::wcstod;

  using ::wcstof;

  using ::wcstok;
  using ::wcstol;
  using ::wcstoul;
  using ::wcsxfrm;
  using ::wctob;
  using ::wmemcmp;
  using ::wmemcpy;
  using ::wmemmove;
  using ::wmemset;
  using ::wprintf;
  using ::wscanf;
  using ::wcschr;
  using ::wcspbrk;
  using ::wcsrchr;
  using ::wcsstr;
  using ::wmemchr;
# 234 "/usr/include/c++/11/cwchar" 3

}
}







namespace __gnu_cxx
{





  using ::wcstold;
# 260 "/usr/include/c++/11/cwchar" 3
  using ::wcstoll;
  using ::wcstoull;

}

namespace std
{
  using ::__gnu_cxx::wcstold;
  using ::__gnu_cxx::wcstoll;
  using ::__gnu_cxx::wcstoull;
}
# 280 "/usr/include/c++/11/cwchar" 3
namespace std
{

  using std::wcstof;


  using std::vfwscanf;


  using std::vswscanf;


  using std::vwscanf;



  using std::wcstold;
  using std::wcstoll;
  using std::wcstoull;

}
# 41 "/usr/include/c++/11/bits/postypes.h" 2 3
# 68 "/usr/include/c++/11/bits/postypes.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 88 "/usr/include/c++/11/bits/postypes.h" 3
  typedef long streamoff;
# 98 "/usr/include/c++/11/bits/postypes.h" 3
  typedef ptrdiff_t streamsize;
# 111 "/usr/include/c++/11/bits/postypes.h" 3
  template<typename _StateT>
    class fpos
    {
    private:
      streamoff _M_off;
      _StateT _M_state;

    public:




      fpos()
      : _M_off(0), _M_state() { }
# 133 "/usr/include/c++/11/bits/postypes.h" 3
      fpos(streamoff __off)
      : _M_off(__off), _M_state() { }


      fpos(const fpos&) = default;
      fpos& operator=(const fpos&) = default;
      ~fpos() = default;



      operator streamoff() const { return _M_off; }


      void
      state(_StateT __st)
      { _M_state = __st; }


      _StateT
      state() const
      { return _M_state; }





      fpos&
      operator+=(streamoff __off)
      {
 _M_off += __off;
 return *this;
      }





      fpos&
      operator-=(streamoff __off)
      {
 _M_off -= __off;
 return *this;
      }







      fpos
      operator+(streamoff __off) const
      {
 fpos __pos(*this);
 __pos += __off;
 return __pos;
      }







      fpos
      operator-(streamoff __off) const
      {
 fpos __pos(*this);
 __pos -= __off;
 return __pos;
      }






      streamoff
      operator-(const fpos& __other) const
      { return _M_off - __other._M_off; }
    };






  template<typename _StateT>
    inline bool
    operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
    { return streamoff(__lhs) == streamoff(__rhs); }

  template<typename _StateT>
    inline bool
    operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
    { return streamoff(__lhs) != streamoff(__rhs); }





  typedef fpos<mbstate_t> streampos;

  typedef fpos<mbstate_t> wstreampos;
# 245 "/usr/include/c++/11/bits/postypes.h" 3
  typedef fpos<mbstate_t> u16streampos;

  typedef fpos<mbstate_t> u32streampos;



}
# 41 "/usr/include/c++/11/iosfwd" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{

# 74 "/usr/include/c++/11/iosfwd" 3
  class ios_base;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_ios;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_streambuf;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_istream;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_ostream;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_iostream;


namespace __cxx11 {

  template<typename _CharT, typename _Traits = char_traits<_CharT>,
     typename _Alloc = allocator<_CharT> >
    class basic_stringbuf;

  template<typename _CharT, typename _Traits = char_traits<_CharT>,
    typename _Alloc = allocator<_CharT> >
    class basic_istringstream;

  template<typename _CharT, typename _Traits = char_traits<_CharT>,
    typename _Alloc = allocator<_CharT> >
    class basic_ostringstream;

  template<typename _CharT, typename _Traits = char_traits<_CharT>,
    typename _Alloc = allocator<_CharT> >
    class basic_stringstream;

}

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_filebuf;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_ifstream;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_ofstream;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class basic_fstream;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class istreambuf_iterator;

  template<typename _CharT, typename _Traits = char_traits<_CharT> >
    class ostreambuf_iterator;



  typedef basic_ios<char> ios;


  typedef basic_streambuf<char> streambuf;


  typedef basic_istream<char> istream;


  typedef basic_ostream<char> ostream;


  typedef basic_iostream<char> iostream;


  typedef basic_stringbuf<char> stringbuf;


  typedef basic_istringstream<char> istringstream;


  typedef basic_ostringstream<char> ostringstream;


  typedef basic_stringstream<char> stringstream;


  typedef basic_filebuf<char> filebuf;


  typedef basic_ifstream<char> ifstream;


  typedef basic_ofstream<char> ofstream;


  typedef basic_fstream<char> fstream;



  typedef basic_ios<wchar_t> wios;


  typedef basic_streambuf<wchar_t> wstreambuf;


  typedef basic_istream<wchar_t> wistream;


  typedef basic_ostream<wchar_t> wostream;


  typedef basic_iostream<wchar_t> wiostream;


  typedef basic_stringbuf<wchar_t> wstringbuf;


  typedef basic_istringstream<wchar_t> wistringstream;


  typedef basic_ostringstream<wchar_t> wostringstream;


  typedef basic_stringstream<wchar_t> wstringstream;


  typedef basic_filebuf<wchar_t> wfilebuf;


  typedef basic_ifstream<wchar_t> wifstream;


  typedef basic_ofstream<wchar_t> wofstream;


  typedef basic_fstream<wchar_t> wfstream;




}
# 53 "/usr/include/c++/11/bits/shared_ptr.h" 2 3
# 1 "/usr/include/c++/11/bits/shared_ptr_base.h" 1 3
# 52 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
# 1 "/usr/include/c++/11/typeinfo" 1 3
# 32 "/usr/include/c++/11/typeinfo" 3
       
# 33 "/usr/include/c++/11/typeinfo" 3






#pragma GCC visibility push(default)

extern "C++" {

namespace __cxxabiv1
{
  class __class_type_info;
}
# 80 "/usr/include/c++/11/typeinfo" 3
namespace std
{






  class type_info
  {
  public:




    virtual ~type_info();



    const char* name() const noexcept
    { return __name[0] == '*' ? __name + 1 : __name; }
# 115 "/usr/include/c++/11/typeinfo" 3
    bool before(const type_info& __arg) const noexcept
    { return (__name[0] == '*' && __arg.__name[0] == '*')
 ? __name < __arg.__name
 : __builtin_strcmp (__name, __arg.__name) < 0; }

    bool operator==(const type_info& __arg) const noexcept
    {
      return ((__name == __arg.__name)
       || (__name[0] != '*' &&
    __builtin_strcmp (__name, __arg.__name) == 0));
    }
# 138 "/usr/include/c++/11/typeinfo" 3
    bool operator!=(const type_info& __arg) const noexcept
    { return !operator==(__arg); }



    size_t hash_code() const noexcept
    {

      return _Hash_bytes(name(), __builtin_strlen(name()),
    static_cast<size_t>(0xc70f6907UL));



    }



    virtual bool __is_pointer_p() const;


    virtual bool __is_function_p() const;







    virtual bool __do_catch(const type_info *__thr_type, void **__thr_obj,
       unsigned __outer) const;


    virtual bool __do_upcast(const __cxxabiv1::__class_type_info *__target,
        void **__obj_ptr) const;

  protected:
    const char *__name;

    explicit type_info(const char *__n): __name(__n) { }

  private:

    type_info& operator=(const type_info&);
    type_info(const type_info&);
  };







  class bad_cast : public exception
  {
  public:
    bad_cast() noexcept { }



    virtual ~bad_cast() noexcept;


    virtual const char* what() const noexcept;
  };





  class bad_typeid : public exception
  {
  public:
    bad_typeid () noexcept { }



    virtual ~bad_typeid() noexcept;


    virtual const char* what() const noexcept;
  };
}

}

#pragma GCC visibility pop
# 53 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3
# 1 "/usr/include/c++/11/bits/allocated_ptr.h" 1 3
# 40 "/usr/include/c++/11/bits/allocated_ptr.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{



  template<typename _Alloc>
    struct __allocated_ptr
    {
      using pointer = typename allocator_traits<_Alloc>::pointer;
      using value_type = typename allocator_traits<_Alloc>::value_type;


      __allocated_ptr(_Alloc& __a, pointer __ptr) noexcept
      : _M_alloc(std::__addressof(__a)), _M_ptr(__ptr)
      { }


      template<typename _Ptr,
        typename _Req = _Require<is_same<_Ptr, value_type*>>>
      __allocated_ptr(_Alloc& __a, _Ptr __ptr)
      : _M_alloc(std::__addressof(__a)),
 _M_ptr(pointer_traits<pointer>::pointer_to(*__ptr))
      { }


      __allocated_ptr(__allocated_ptr&& __gd) noexcept
      : _M_alloc(__gd._M_alloc), _M_ptr(__gd._M_ptr)
      { __gd._M_ptr = nullptr; }


      ~__allocated_ptr()
      {
 if (_M_ptr != nullptr)
   std::allocator_traits<_Alloc>::deallocate(*_M_alloc, _M_ptr, 1);
      }


      __allocated_ptr&
      operator=(std::nullptr_t) noexcept
      {
 _M_ptr = nullptr;
 return *this;
      }


      value_type* get() { return std::__to_address(_M_ptr); }

    private:
      _Alloc* _M_alloc;
      pointer _M_ptr;
    };


  template<typename _Alloc>
    __allocated_ptr<_Alloc>
    __allocate_guarded(_Alloc& __a)
    {
      return { __a, std::allocator_traits<_Alloc>::allocate(__a, 1) };
    }


}
# 54 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3



# 1 "/usr/include/c++/11/bits/refwrap.h" 1 3
# 33 "/usr/include/c++/11/bits/refwrap.h" 3
       
# 34 "/usr/include/c++/11/bits/refwrap.h" 3
# 43 "/usr/include/c++/11/bits/refwrap.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 54 "/usr/include/c++/11/bits/refwrap.h" 3
  template<typename _Res, typename... _ArgTypes>
    struct _Maybe_unary_or_binary_function { };


  template<typename _Res, typename _T1>
    struct _Maybe_unary_or_binary_function<_Res, _T1>
    : std::unary_function<_T1, _Res> { };


  template<typename _Res, typename _T1, typename _T2>
    struct _Maybe_unary_or_binary_function<_Res, _T1, _T2>
    : std::binary_function<_T1, _T2, _Res> { };

  template<typename _Signature>
    struct _Mem_fn_traits;

  template<typename _Res, typename _Class, typename... _ArgTypes>
    struct _Mem_fn_traits_base
    {
      using __result_type = _Res;
      using __maybe_type
 = _Maybe_unary_or_binary_function<_Res, _Class*, _ArgTypes...>;
      using __arity = integral_constant<size_t, sizeof...(_ArgTypes)>;
    };
# 99 "/usr/include/c++/11/bits/refwrap.h" 3
template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) > : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) > : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const > : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const > : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) volatile > : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) volatile > : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const volatile > : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const volatile > : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = true_type; };
template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) &> : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) &> : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const &> : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const &> : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) volatile &> : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) volatile &> : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const volatile &> : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const volatile &> : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = true_type; };
template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) &&> : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) &&> : _Mem_fn_traits_base<_Res, _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const &&> : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const &&> : _Mem_fn_traits_base<_Res, const _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) volatile &&> : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) volatile &&> : _Mem_fn_traits_base<_Res, volatile _Class, _ArgTypes...> { using __vararg = true_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) const volatile &&> : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = false_type; }; template<typename _Res, typename _Class, typename... _ArgTypes> struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) const volatile &&> : _Mem_fn_traits_base<_Res, const volatile _Class, _ArgTypes...> { using __vararg = true_type; };
# 113 "/usr/include/c++/11/bits/refwrap.h" 3
  template<typename _Functor, typename = __void_t<>>
    struct _Maybe_get_result_type
    { };

  template<typename _Functor>
    struct _Maybe_get_result_type<_Functor,
      __void_t<typename _Functor::result_type>>
    { typedef typename _Functor::result_type result_type; };





  template<typename _Functor>
    struct _Weak_result_type_impl
    : _Maybe_get_result_type<_Functor>
    { };


  template<typename _Res, typename... _ArgTypes >
    struct _Weak_result_type_impl<_Res(_ArgTypes...) >
    { typedef _Res result_type; };


  template<typename _Res, typename... _ArgTypes >
    struct _Weak_result_type_impl<_Res(_ArgTypes......) >
    { typedef _Res result_type; };


  template<typename _Res, typename... _ArgTypes >
    struct _Weak_result_type_impl<_Res(*)(_ArgTypes...) >
    { typedef _Res result_type; };


  template<typename _Res, typename... _ArgTypes >
    struct
    _Weak_result_type_impl<_Res(*)(_ArgTypes......) >
    { typedef _Res result_type; };


  template<typename _Functor,
    bool = is_member_function_pointer<_Functor>::value>
    struct _Weak_result_type_memfun
    : _Weak_result_type_impl<_Functor>
    { };


  template<typename _MemFunPtr>
    struct _Weak_result_type_memfun<_MemFunPtr, true>
    {
      using result_type = typename _Mem_fn_traits<_MemFunPtr>::__result_type;
    };


  template<typename _Func, typename _Class>
    struct _Weak_result_type_memfun<_Func _Class::*, false>
    { };





  template<typename _Functor>
    struct _Weak_result_type
    : _Weak_result_type_memfun<typename remove_cv<_Functor>::type>
    { };



  template<typename _Tp, typename = __void_t<>>
    struct _Refwrap_base_arg1
    { };


  template<typename _Tp>
    struct _Refwrap_base_arg1<_Tp,
         __void_t<typename _Tp::argument_type>>
    {
      typedef typename _Tp::argument_type argument_type;
    };


  template<typename _Tp, typename = __void_t<>>
    struct _Refwrap_base_arg2
    { };


  template<typename _Tp>
    struct _Refwrap_base_arg2<_Tp,
         __void_t<typename _Tp::first_argument_type,
           typename _Tp::second_argument_type>>
    {
      typedef typename _Tp::first_argument_type first_argument_type;
      typedef typename _Tp::second_argument_type second_argument_type;
    };







  template<typename _Tp>
    struct _Reference_wrapper_base
    : _Weak_result_type<_Tp>, _Refwrap_base_arg1<_Tp>, _Refwrap_base_arg2<_Tp>
    { };


  template<typename _Res, typename _T1 >
    struct _Reference_wrapper_base<_Res(_T1) >
    : unary_function<_T1, _Res>
    { };

  template<typename _Res, typename _T1>
    struct _Reference_wrapper_base<_Res(_T1) const>
    : unary_function<_T1, _Res>
    { };

  template<typename _Res, typename _T1>
    struct _Reference_wrapper_base<_Res(_T1) volatile>
    : unary_function<_T1, _Res>
    { };

  template<typename _Res, typename _T1>
    struct _Reference_wrapper_base<_Res(_T1) const volatile>
    : unary_function<_T1, _Res>
    { };


  template<typename _Res, typename _T1, typename _T2 >
    struct _Reference_wrapper_base<_Res(_T1, _T2) >
    : binary_function<_T1, _T2, _Res>
    { };

  template<typename _Res, typename _T1, typename _T2>
    struct _Reference_wrapper_base<_Res(_T1, _T2) const>
    : binary_function<_T1, _T2, _Res>
    { };

  template<typename _Res, typename _T1, typename _T2>
    struct _Reference_wrapper_base<_Res(_T1, _T2) volatile>
    : binary_function<_T1, _T2, _Res>
    { };

  template<typename _Res, typename _T1, typename _T2>
    struct _Reference_wrapper_base<_Res(_T1, _T2) const volatile>
    : binary_function<_T1, _T2, _Res>
    { };


  template<typename _Res, typename _T1 >
    struct _Reference_wrapper_base<_Res(*)(_T1) >
    : unary_function<_T1, _Res>
    { };


  template<typename _Res, typename _T1, typename _T2 >
    struct _Reference_wrapper_base<_Res(*)(_T1, _T2) >
    : binary_function<_T1, _T2, _Res>
    { };

  template<typename _Tp, bool = is_member_function_pointer<_Tp>::value>
    struct _Reference_wrapper_base_memfun
    : _Reference_wrapper_base<_Tp>
    { };

  template<typename _MemFunPtr>
    struct _Reference_wrapper_base_memfun<_MemFunPtr, true>
    : _Mem_fn_traits<_MemFunPtr>::__maybe_type
    {
      using result_type = typename _Mem_fn_traits<_MemFunPtr>::__result_type;
    };
# 293 "/usr/include/c++/11/bits/refwrap.h" 3
  template<typename _Tp>
    class reference_wrapper



    : public _Reference_wrapper_base_memfun<typename remove_cv<_Tp>::type>

    {
      _Tp* _M_data;

     
      static _Tp* _S_fun(_Tp& __r) noexcept { return std::__addressof(__r); }

      static void _S_fun(_Tp&&) = delete;

      template<typename _Up, typename _Up2 = __remove_cvref_t<_Up>>
 using __not_same
   = typename enable_if<!is_same<reference_wrapper, _Up2>::value>::type;

    public:
      typedef _Tp type;




      template<typename _Up, typename = __not_same<_Up>, typename
  = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))>

 reference_wrapper(_Up&& __uref)
 noexcept(noexcept(reference_wrapper::_S_fun(std::declval<_Up>())))
 : _M_data(reference_wrapper::_S_fun(std::forward<_Up>(__uref)))
 { }

      reference_wrapper(const reference_wrapper&) = default;

      reference_wrapper&
      operator=(const reference_wrapper&) = default;

     
      operator _Tp&() const noexcept
      { return this->get(); }

     
      _Tp&
      get() const noexcept
      { return *_M_data; }

      template<typename... _Args>

 typename result_of<_Tp&(_Args&&...)>::type
 operator()(_Args&&... __args) const
 {




   return std::__invoke(get(), std::forward<_Args>(__args)...);
 }
    };
# 361 "/usr/include/c++/11/bits/refwrap.h" 3
  template<typename _Tp>
   
    inline reference_wrapper<_Tp>
    ref(_Tp& __t) noexcept
    { return reference_wrapper<_Tp>(__t); }


  template<typename _Tp>
   
    inline reference_wrapper<const _Tp>
    cref(const _Tp& __t) noexcept
    { return reference_wrapper<const _Tp>(__t); }

  template<typename _Tp>
    void ref(const _Tp&&) = delete;

  template<typename _Tp>
    void cref(const _Tp&&) = delete;


  template<typename _Tp>
   
    inline reference_wrapper<_Tp>
    ref(reference_wrapper<_Tp> __t) noexcept
    { return __t; }


  template<typename _Tp>
   
    inline reference_wrapper<const _Tp>
    cref(reference_wrapper<_Tp> __t) noexcept
    { return { __t.get() }; }




}
# 58 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3


# 1 "/usr/include/c++/11/ext/aligned_buffer.h" 1 3
# 32 "/usr/include/c++/11/ext/aligned_buffer.h" 3
       
# 33 "/usr/include/c++/11/ext/aligned_buffer.h" 3







namespace __gnu_cxx
{




  template<typename _Tp>
    struct __aligned_membuf
    {





      struct _Tp2 { _Tp _M_t; };

      alignas(__alignof__(_Tp2::_M_t)) unsigned char _M_storage[sizeof(_Tp)];

      __aligned_membuf() = default;


      __aligned_membuf(std::nullptr_t) { }

      void*
      _M_addr() noexcept
      { return static_cast<void*>(&_M_storage); }

      const void*
      _M_addr() const noexcept
      { return static_cast<const void*>(&_M_storage); }

      _Tp*
      _M_ptr() noexcept
      { return static_cast<_Tp*>(_M_addr()); }

      const _Tp*
      _M_ptr() const noexcept
      { return static_cast<const _Tp*>(_M_addr()); }
    };
# 89 "/usr/include/c++/11/ext/aligned_buffer.h" 3
  template<typename _Tp>
    struct __aligned_buffer
    : std::aligned_storage<sizeof(_Tp), __alignof__(_Tp)>
    {
      typename
 std::aligned_storage<sizeof(_Tp), __alignof__(_Tp)>::type _M_storage;

      __aligned_buffer() = default;


      __aligned_buffer(std::nullptr_t) { }

      void*
      _M_addr() noexcept
      {
        return static_cast<void*>(&_M_storage);
      }

      const void*
      _M_addr() const noexcept
      {
        return static_cast<const void*>(&_M_storage);
      }

      _Tp*
      _M_ptr() noexcept
      { return static_cast<_Tp*>(_M_addr()); }

      const _Tp*
      _M_ptr() const noexcept
      { return static_cast<const _Tp*>(_M_addr()); }
    };


}
# 61 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3
# 1 "/usr/include/c++/11/ext/atomicity.h" 1 3
# 32 "/usr/include/c++/11/ext/atomicity.h" 3
       
# 33 "/usr/include/c++/11/ext/atomicity.h" 3


# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr.h" 1 3
# 30 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr.h" 3
#pragma GCC visibility push(default)
# 148 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr.h" 3
# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 1 3
# 35 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
# 1 "/usr/include/pthread.h" 1 3 4
# 22 "/usr/include/pthread.h" 3 4
# 1 "/usr/include/sched.h" 1 3 4
# 29 "/usr/include/sched.h" 3 4
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 30 "/usr/include/sched.h" 2 3 4
# 43 "/usr/include/sched.h" 3 4
# 1 "/usr/include/bits/sched.h" 1 3 4
# 76 "/usr/include/bits/sched.h" 3 4
# 1 "/usr/include/bits/types/struct_sched_param.h" 1 3 4
# 23 "/usr/include/bits/types/struct_sched_param.h" 3 4
struct sched_param
{
  int sched_priority;
};
# 77 "/usr/include/bits/sched.h" 2 3 4

extern "C" {



extern int clone (int (*__fn) (void *__arg), void *__child_stack,
    int __flags, void *__arg, ...) noexcept (true);


extern int unshare (int __flags) noexcept (true);


extern int sched_getcpu (void) noexcept (true);


extern int getcpu (unsigned int *, unsigned int *) noexcept (true);


extern int setns (int __fd, int __nstype) noexcept (true);


}
# 44 "/usr/include/sched.h" 2 3 4
# 1 "/usr/include/bits/cpu-set.h" 1 3 4
# 32 "/usr/include/bits/cpu-set.h" 3 4
typedef unsigned long int __cpu_mask;






typedef struct
{
  __cpu_mask __bits[1024 / (8 * sizeof (__cpu_mask))];
} cpu_set_t;
# 115 "/usr/include/bits/cpu-set.h" 3 4
extern "C" {

extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
     noexcept (true);
extern cpu_set_t *__sched_cpualloc (size_t __count) noexcept (true) __attribute__ ((__warn_unused_result__));
extern void __sched_cpufree (cpu_set_t *__set) noexcept (true);

}
# 45 "/usr/include/sched.h" 2 3 4






extern "C" {


extern int sched_setparam (__pid_t __pid, const struct sched_param *__param)
     noexcept (true);


extern int sched_getparam (__pid_t __pid, struct sched_param *__param) noexcept (true);


extern int sched_setscheduler (__pid_t __pid, int __policy,
          const struct sched_param *__param) noexcept (true);


extern int sched_getscheduler (__pid_t __pid) noexcept (true);


extern int sched_yield (void) noexcept (true);


extern int sched_get_priority_max (int __algorithm) noexcept (true);


extern int sched_get_priority_min (int __algorithm) noexcept (true);


extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) noexcept (true);
# 121 "/usr/include/sched.h" 3 4
extern int sched_setaffinity (__pid_t __pid, size_t __cpusetsize,
         const cpu_set_t *__cpuset) noexcept (true);


extern int sched_getaffinity (__pid_t __pid, size_t __cpusetsize,
         cpu_set_t *__cpuset) noexcept (true);


}
# 23 "/usr/include/pthread.h" 2 3 4
# 1 "/usr/include/time.h" 1 3 4
# 29 "/usr/include/time.h" 3 4
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 30 "/usr/include/time.h" 2 3 4



# 1 "/usr/include/bits/time.h" 1 3 4
# 73 "/usr/include/bits/time.h" 3 4
# 1 "/usr/include/bits/timex.h" 1 3 4
# 26 "/usr/include/bits/timex.h" 3 4
struct timex
{
  unsigned int modes;
  __syscall_slong_t offset;
  __syscall_slong_t freq;
  __syscall_slong_t maxerror;
  __syscall_slong_t esterror;
  int status;
  __syscall_slong_t constant;
  __syscall_slong_t precision;
  __syscall_slong_t tolerance;
  struct timeval time;
  __syscall_slong_t tick;
  __syscall_slong_t ppsfreq;
  __syscall_slong_t jitter;
  int shift;
  __syscall_slong_t stabil;
  __syscall_slong_t jitcnt;
  __syscall_slong_t calcnt;
  __syscall_slong_t errcnt;
  __syscall_slong_t stbcnt;

  int tai;


  int :32; int :32; int :32; int :32;
  int :32; int :32; int :32; int :32;
  int :32; int :32; int :32;
};
# 74 "/usr/include/bits/time.h" 2 3 4

extern "C" {


extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) noexcept (true);

}
# 34 "/usr/include/time.h" 2 3 4





# 1 "/usr/include/bits/types/struct_tm.h" 1 3 4






struct tm
{
  int tm_sec;
  int tm_min;
  int tm_hour;
  int tm_mday;
  int tm_mon;
  int tm_year;
  int tm_wday;
  int tm_yday;
  int tm_isdst;


  long int tm_gmtoff;
  const char *tm_zone;




};
# 40 "/usr/include/time.h" 2 3 4
# 48 "/usr/include/time.h" 3 4
# 1 "/usr/include/bits/types/struct_itimerspec.h" 1 3 4







struct itimerspec
  {
    struct timespec it_interval;
    struct timespec it_value;
  };
# 49 "/usr/include/time.h" 2 3 4
struct sigevent;
# 68 "/usr/include/time.h" 3 4
extern "C" {



extern clock_t clock (void) noexcept (true);


extern time_t time (time_t *__timer) noexcept (true);


extern double difftime (time_t __time1, time_t __time0)
     noexcept (true) __attribute__ ((__const__));


extern time_t mktime (struct tm *__tp) noexcept (true);





extern size_t strftime (char *__restrict __s, size_t __maxsize,
   const char *__restrict __format,
   const struct tm *__restrict __tp) noexcept (true);




extern char *strptime (const char *__restrict __s,
         const char *__restrict __fmt, struct tm *__tp)
     noexcept (true);






extern size_t strftime_l (char *__restrict __s, size_t __maxsize,
     const char *__restrict __format,
     const struct tm *__restrict __tp,
     locale_t __loc) noexcept (true);



extern char *strptime_l (const char *__restrict __s,
    const char *__restrict __fmt, struct tm *__tp,
    locale_t __loc) noexcept (true);





extern struct tm *gmtime (const time_t *__timer) noexcept (true);



extern struct tm *localtime (const time_t *__timer) noexcept (true);




extern struct tm *gmtime_r (const time_t *__restrict __timer,
       struct tm *__restrict __tp) noexcept (true);



extern struct tm *localtime_r (const time_t *__restrict __timer,
          struct tm *__restrict __tp) noexcept (true);




extern char *asctime (const struct tm *__tp) noexcept (true);


extern char *ctime (const time_t *__timer) noexcept (true);






extern char *asctime_r (const struct tm *__restrict __tp,
   char *__restrict __buf) noexcept (true);


extern char *ctime_r (const time_t *__restrict __timer,
        char *__restrict __buf) noexcept (true);




extern char *__tzname[2];
extern int __daylight;
extern long int __timezone;




extern char *tzname[2];



extern void tzset (void) noexcept (true);



extern int daylight;
extern long int timezone;
# 190 "/usr/include/time.h" 3 4
extern time_t timegm (struct tm *__tp) noexcept (true);


extern time_t timelocal (struct tm *__tp) noexcept (true);


extern int dysize (int __year) noexcept (true) __attribute__ ((__const__));
# 205 "/usr/include/time.h" 3 4
extern int nanosleep (const struct timespec *__requested_time,
        struct timespec *__remaining);



extern int clock_getres (clockid_t __clock_id, struct timespec *__res) noexcept (true);


extern int clock_gettime (clockid_t __clock_id, struct timespec *__tp) noexcept (true);


extern int clock_settime (clockid_t __clock_id, const struct timespec *__tp)
     noexcept (true);






extern int clock_nanosleep (clockid_t __clock_id, int __flags,
       const struct timespec *__req,
       struct timespec *__rem);


extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id) noexcept (true);




extern int timer_create (clockid_t __clock_id,
    struct sigevent *__restrict __evp,
    timer_t *__restrict __timerid) noexcept (true);


extern int timer_delete (timer_t __timerid) noexcept (true);


extern int timer_settime (timer_t __timerid, int __flags,
     const struct itimerspec *__restrict __value,
     struct itimerspec *__restrict __ovalue) noexcept (true);


extern int timer_gettime (timer_t __timerid, struct itimerspec *__value)
     noexcept (true);


extern int timer_getoverrun (timer_t __timerid) noexcept (true);





extern int timespec_get (struct timespec *__ts, int __base)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 274 "/usr/include/time.h" 3 4
extern int getdate_err;
# 283 "/usr/include/time.h" 3 4
extern struct tm *getdate (const char *__string);
# 297 "/usr/include/time.h" 3 4
extern int getdate_r (const char *__restrict __string,
        struct tm *__restrict __resbufp);


}
# 24 "/usr/include/pthread.h" 2 3 4



# 1 "/usr/include/bits/setjmp.h" 1 3 4
# 26 "/usr/include/bits/setjmp.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 27 "/usr/include/bits/setjmp.h" 2 3 4




typedef long int __jmp_buf[8];
# 28 "/usr/include/pthread.h" 2 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 29 "/usr/include/pthread.h" 2 3 4


# 1 "/usr/include/bits/types/struct___jmp_buf_tag.h" 1 3 4
# 26 "/usr/include/bits/types/struct___jmp_buf_tag.h" 3 4
struct __jmp_buf_tag
  {




    __jmp_buf __jmpbuf;
    int __mask_was_saved;
    __sigset_t __saved_mask;
  };
# 32 "/usr/include/pthread.h" 2 3 4



enum
{
  PTHREAD_CREATE_JOINABLE,

  PTHREAD_CREATE_DETACHED

};



enum
{
  PTHREAD_MUTEX_TIMED_NP,
  PTHREAD_MUTEX_RECURSIVE_NP,
  PTHREAD_MUTEX_ERRORCHECK_NP,
  PTHREAD_MUTEX_ADAPTIVE_NP

  ,
  PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP,
  PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
  PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
  PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL



  , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP

};




enum
{
  PTHREAD_MUTEX_STALLED,
  PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED,
  PTHREAD_MUTEX_ROBUST,
  PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST
};





enum
{
  PTHREAD_PRIO_NONE,
  PTHREAD_PRIO_INHERIT,
  PTHREAD_PRIO_PROTECT
};
# 102 "/usr/include/pthread.h" 3 4
enum
{
  PTHREAD_RWLOCK_PREFER_READER_NP,
  PTHREAD_RWLOCK_PREFER_WRITER_NP,
  PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
  PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP
};
# 122 "/usr/include/pthread.h" 3 4
enum
{
  PTHREAD_INHERIT_SCHED,

  PTHREAD_EXPLICIT_SCHED

};



enum
{
  PTHREAD_SCOPE_SYSTEM,

  PTHREAD_SCOPE_PROCESS

};



enum
{
  PTHREAD_PROCESS_PRIVATE,

  PTHREAD_PROCESS_SHARED

};
# 157 "/usr/include/pthread.h" 3 4
struct _pthread_cleanup_buffer
{
  void (*__routine) (void *);
  void *__arg;
  int __canceltype;
  struct _pthread_cleanup_buffer *__prev;
};


enum
{
  PTHREAD_CANCEL_ENABLE,

  PTHREAD_CANCEL_DISABLE

};
enum
{
  PTHREAD_CANCEL_DEFERRED,

  PTHREAD_CANCEL_ASYNCHRONOUS

};
# 195 "/usr/include/pthread.h" 3 4
extern "C" {




extern int pthread_create (pthread_t *__restrict __newthread,
      const pthread_attr_t *__restrict __attr,
      void *(*__start_routine) (void *),
      void *__restrict __arg) noexcept (true) __attribute__ ((__nonnull__ (1, 3)));





extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__));







extern int pthread_join (pthread_t __th, void **__thread_return);




extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) noexcept (true);







extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return,
     const struct timespec *__abstime);
# 240 "/usr/include/pthread.h" 3 4
extern int pthread_clockjoin_np (pthread_t __th, void **__thread_return,
                                 clockid_t __clockid,
     const struct timespec *__abstime);






extern int pthread_detach (pthread_t __th) noexcept (true);



extern pthread_t pthread_self (void) noexcept (true) __attribute__ ((__const__));


extern int pthread_equal (pthread_t __thread1, pthread_t __thread2)
  noexcept (true) __attribute__ ((__const__));







extern int pthread_attr_init (pthread_attr_t *__attr) noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_attr_destroy (pthread_attr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_attr_getdetachstate (const pthread_attr_t *__attr,
     int *__detachstate)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setdetachstate (pthread_attr_t *__attr,
     int __detachstate)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_attr_getguardsize (const pthread_attr_t *__attr,
          size_t *__guardsize)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setguardsize (pthread_attr_t *__attr,
          size_t __guardsize)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_attr_getschedparam (const pthread_attr_t *__restrict __attr,
           struct sched_param *__restrict __param)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr,
           const struct sched_param *__restrict
           __param) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_getschedpolicy (const pthread_attr_t *__restrict
     __attr, int *__restrict __policy)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_attr_getinheritsched (const pthread_attr_t *__restrict
      __attr, int *__restrict __inherit)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setinheritsched (pthread_attr_t *__attr,
      int __inherit)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_attr_getscope (const pthread_attr_t *__restrict __attr,
      int *__restrict __scope)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_attr_getstackaddr (const pthread_attr_t *__restrict
          __attr, void **__restrict __stackaddr)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2))) __attribute__ ((__deprecated__));





extern int pthread_attr_setstackaddr (pthread_attr_t *__attr,
          void *__stackaddr)
     noexcept (true) __attribute__ ((__nonnull__ (1))) __attribute__ ((__deprecated__));


extern int pthread_attr_getstacksize (const pthread_attr_t *__restrict
          __attr, size_t *__restrict __stacksize)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern int pthread_attr_setstacksize (pthread_attr_t *__attr,
          size_t __stacksize)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_attr_getstack (const pthread_attr_t *__restrict __attr,
      void **__restrict __stackaddr,
      size_t *__restrict __stacksize)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2, 3)));




extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
      size_t __stacksize) noexcept (true) __attribute__ ((__nonnull__ (1)));





extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr,
     size_t __cpusetsize,
     const cpu_set_t *__cpuset)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern int pthread_attr_getaffinity_np (const pthread_attr_t *__attr,
     size_t __cpusetsize,
     cpu_set_t *__cpuset)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));


extern int pthread_getattr_default_np (pthread_attr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_attr_setsigmask_np (pthread_attr_t *__attr,
           const __sigset_t *sigmask);




extern int pthread_attr_getsigmask_np (const pthread_attr_t *__attr,
           __sigset_t *sigmask);







extern int pthread_setattr_default_np (const pthread_attr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));




extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (2)));







extern int pthread_setschedparam (pthread_t __target_thread, int __policy,
      const struct sched_param *__param)
     noexcept (true) __attribute__ ((__nonnull__ (3)));


extern int pthread_getschedparam (pthread_t __target_thread,
      int *__restrict __policy,
      struct sched_param *__restrict __param)
     noexcept (true) __attribute__ ((__nonnull__ (2, 3)));


extern int pthread_setschedprio (pthread_t __target_thread, int __prio)
     noexcept (true);




extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
          size_t __buflen)
     noexcept (true) __attribute__ ((__nonnull__ (2)));


extern int pthread_setname_np (pthread_t __target_thread, const char *__name)
     noexcept (true) __attribute__ ((__nonnull__ (2)));





extern int pthread_getconcurrency (void) noexcept (true);


extern int pthread_setconcurrency (int __level) noexcept (true);







extern int pthread_yield (void) noexcept (true);




extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize,
       const cpu_set_t *__cpuset)
     noexcept (true) __attribute__ ((__nonnull__ (3)));


extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize,
       cpu_set_t *__cpuset)
     noexcept (true) __attribute__ ((__nonnull__ (3)));
# 486 "/usr/include/pthread.h" 3 4
extern int pthread_once (pthread_once_t *__once_control,
    void (*__init_routine) (void)) __attribute__ ((__nonnull__ (1, 2)));
# 498 "/usr/include/pthread.h" 3 4
extern int pthread_setcancelstate (int __state, int *__oldstate);



extern int pthread_setcanceltype (int __type, int *__oldtype);


extern int pthread_cancel (pthread_t __th);




extern void pthread_testcancel (void);




struct __cancel_jmp_buf_tag
{
  __jmp_buf __cancel_jmp_buf;
  int __mask_was_saved;
};

typedef struct
{
  struct __cancel_jmp_buf_tag __cancel_jmp_buf[1];
  void *__pad[4];
} __pthread_unwind_buf_t __attribute__ ((__aligned__));
# 534 "/usr/include/pthread.h" 3 4
struct __pthread_cleanup_frame
{
  void (*__cancel_routine) (void *);
  void *__cancel_arg;
  int __do_it;
  int __cancel_type;
};
# 674 "/usr/include/pthread.h" 3 4
extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf)
     ;
# 686 "/usr/include/pthread.h" 3 4
extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf)
  ;
# 709 "/usr/include/pthread.h" 3 4
extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf)
     ;
# 722 "/usr/include/pthread.h" 3 4
extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf)
  ;



extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf)
     __attribute__ ((__noreturn__))

     __attribute__ ((__weak__))

     ;
# 743 "/usr/include/pthread.h" 3 4
extern int __sigsetjmp_cancel (struct __cancel_jmp_buf_tag __env[1], int __savemask) noexcept (true) __asm__ ("" "__sigsetjmp")


                     __attribute__ ((__returns_twice__));
# 758 "/usr/include/pthread.h" 3 4
extern int pthread_mutex_init (pthread_mutex_t *__mutex,
          const pthread_mutexattr_t *__mutexattr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutex_destroy (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutex_trylock (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
        const struct timespec *__restrict
        __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_mutex_clocklock (pthread_mutex_t *__restrict __mutex,
        clockid_t __clockid,
        const struct timespec *__restrict
        __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_mutex_getprioceiling (const pthread_mutex_t *
      __restrict __mutex,
      int *__restrict __prioceiling)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex,
      int __prioceiling,
      int *__restrict __old_ceiling)
     noexcept (true) __attribute__ ((__nonnull__ (1, 3)));




extern int pthread_mutex_consistent (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));

extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 822 "/usr/include/pthread.h" 3 4
extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutexattr_getpshared (const pthread_mutexattr_t *
      __restrict __attr,
      int *__restrict __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr,
      int __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_mutexattr_gettype (const pthread_mutexattr_t *__restrict
          __attr, int *__restrict __kind)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));




extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_mutexattr_getprotocol (const pthread_mutexattr_t *
       __restrict __attr,
       int *__restrict __protocol)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr,
       int __protocol)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *
          __restrict __attr,
          int *__restrict __prioceiling)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr,
          int __prioceiling)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_mutexattr_getrobust (const pthread_mutexattr_t *__attr,
     int *__robustness)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));

extern int pthread_mutexattr_getrobust_np (const pthread_mutexattr_t *__attr,
        int *__robustness)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
     int __robustness)
     noexcept (true) __attribute__ ((__nonnull__ (1)));

extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr,
        int __robustness)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 904 "/usr/include/pthread.h" 3 4
extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
    const pthread_rwlockattr_t *__restrict
    __attr) noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
  noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
           const struct timespec *__restrict
           __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
           clockid_t __clockid,
           const struct timespec *__restrict
           __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
           const struct timespec *__restrict
           __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 2)));



extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
           clockid_t __clockid,
           const struct timespec *__restrict
           __abstime) noexcept (true) __attribute__ ((__nonnull__ (1, 3)));



extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));





extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *
       __restrict __attr,
       int *__restrict __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr,
       int __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_rwlockattr_getkind_np (const pthread_rwlockattr_t *
       __restrict __attr,
       int *__restrict __pref)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr,
       int __pref) noexcept (true) __attribute__ ((__nonnull__ (1)));







extern int pthread_cond_init (pthread_cond_t *__restrict __cond,
         const pthread_condattr_t *__restrict __cond_attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_cond_destroy (pthread_cond_t *__cond)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_cond_signal (pthread_cond_t *__cond)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_cond_broadcast (pthread_cond_t *__cond)
     noexcept (true) __attribute__ ((__nonnull__ (1)));






extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
         pthread_mutex_t *__restrict __mutex)
     __attribute__ ((__nonnull__ (1, 2)));
# 1030 "/usr/include/pthread.h" 3 4
extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
       pthread_mutex_t *__restrict __mutex,
       const struct timespec *__restrict __abstime)
     __attribute__ ((__nonnull__ (1, 2, 3)));
# 1043 "/usr/include/pthread.h" 3 4
extern int pthread_cond_clockwait (pthread_cond_t *__restrict __cond,
       pthread_mutex_t *__restrict __mutex,
       __clockid_t __clock_id,
       const struct timespec *__restrict __abstime)
     __attribute__ ((__nonnull__ (1, 2, 4)));





extern int pthread_condattr_init (pthread_condattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_condattr_destroy (pthread_condattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_condattr_getpshared (const pthread_condattr_t *
     __restrict __attr,
     int *__restrict __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_condattr_setpshared (pthread_condattr_t *__attr,
     int __pshared) noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_condattr_getclock (const pthread_condattr_t *
          __restrict __attr,
          __clockid_t *__restrict __clock_id)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_condattr_setclock (pthread_condattr_t *__attr,
          __clockid_t __clock_id)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 1089 "/usr/include/pthread.h" 3 4
extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_spin_destroy (pthread_spinlock_t *__lock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_spin_lock (pthread_spinlock_t *__lock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_spin_trylock (pthread_spinlock_t *__lock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_spin_unlock (pthread_spinlock_t *__lock)
     noexcept (true) __attribute__ ((__nonnull__ (1)));






extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
     const pthread_barrierattr_t *__restrict
     __attr, unsigned int __count)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
     noexcept (true) __attribute__ ((__nonnull__ (1)));



extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr)
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_barrierattr_getpshared (const pthread_barrierattr_t *
        __restrict __attr,
        int *__restrict __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1, 2)));


extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr,
        int __pshared)
     noexcept (true) __attribute__ ((__nonnull__ (1)));
# 1156 "/usr/include/pthread.h" 3 4
extern int pthread_key_create (pthread_key_t *__key,
          void (*__destr_function) (void *))
     noexcept (true) __attribute__ ((__nonnull__ (1)));


extern int pthread_key_delete (pthread_key_t __key) noexcept (true);


extern void *pthread_getspecific (pthread_key_t __key) noexcept (true);


extern int pthread_setspecific (pthread_key_t __key,
    const void *__pointer) noexcept (true) ;




extern int pthread_getcpuclockid (pthread_t __thread_id,
      __clockid_t *__clock_id)
     noexcept (true) __attribute__ ((__nonnull__ (2)));
# 1190 "/usr/include/pthread.h" 3 4
extern int pthread_atfork (void (*__prepare) (void),
      void (*__parent) (void),
      void (*__child) (void)) noexcept (true);




extern __inline __attribute__ ((__gnu_inline__)) int
__attribute__ ((__leaf__)) pthread_equal (pthread_t __thread1, pthread_t __thread2) noexcept (true)
{
  return __thread1 == __thread2;
}


}
# 36 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 2 3
# 47 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
typedef pthread_t __gthread_t;
typedef pthread_key_t __gthread_key_t;
typedef pthread_once_t __gthread_once_t;
typedef pthread_mutex_t __gthread_mutex_t;
typedef pthread_mutex_t __gthread_recursive_mutex_t;
typedef pthread_cond_t __gthread_cond_t;
typedef struct timespec __gthread_time_t;
# 102 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static __typeof(pthread_once) __gthrw_pthread_once __attribute__ ((__weakref__("pthread_once"), __copy__ (pthread_once)));
static __typeof(pthread_getspecific) __gthrw_pthread_getspecific __attribute__ ((__weakref__("pthread_getspecific"), __copy__ (pthread_getspecific)));
static __typeof(pthread_setspecific) __gthrw_pthread_setspecific __attribute__ ((__weakref__("pthread_setspecific"), __copy__ (pthread_setspecific)));

static __typeof(pthread_create) __gthrw_pthread_create __attribute__ ((__weakref__("pthread_create"), __copy__ (pthread_create)));
static __typeof(pthread_join) __gthrw_pthread_join __attribute__ ((__weakref__("pthread_join"), __copy__ (pthread_join)));
static __typeof(pthread_equal) __gthrw_pthread_equal __attribute__ ((__weakref__("pthread_equal"), __copy__ (pthread_equal)));
static __typeof(pthread_self) __gthrw_pthread_self __attribute__ ((__weakref__("pthread_self"), __copy__ (pthread_self)));
static __typeof(pthread_detach) __gthrw_pthread_detach __attribute__ ((__weakref__("pthread_detach"), __copy__ (pthread_detach)));

static __typeof(pthread_cancel) __gthrw_pthread_cancel __attribute__ ((__weakref__("pthread_cancel"), __copy__ (pthread_cancel)));

static __typeof(sched_yield) __gthrw_sched_yield __attribute__ ((__weakref__("sched_yield"), __copy__ (sched_yield)));

static __typeof(pthread_mutex_lock) __gthrw_pthread_mutex_lock __attribute__ ((__weakref__("pthread_mutex_lock"), __copy__ (pthread_mutex_lock)));
static __typeof(pthread_mutex_trylock) __gthrw_pthread_mutex_trylock __attribute__ ((__weakref__("pthread_mutex_trylock"), __copy__ (pthread_mutex_trylock)));

static __typeof(pthread_mutex_timedlock) __gthrw_pthread_mutex_timedlock __attribute__ ((__weakref__("pthread_mutex_timedlock"), __copy__ (pthread_mutex_timedlock)));

static __typeof(pthread_mutex_unlock) __gthrw_pthread_mutex_unlock __attribute__ ((__weakref__("pthread_mutex_unlock"), __copy__ (pthread_mutex_unlock)));
static __typeof(pthread_mutex_init) __gthrw_pthread_mutex_init __attribute__ ((__weakref__("pthread_mutex_init"), __copy__ (pthread_mutex_init)));
static __typeof(pthread_mutex_destroy) __gthrw_pthread_mutex_destroy __attribute__ ((__weakref__("pthread_mutex_destroy"), __copy__ (pthread_mutex_destroy)));

static __typeof(pthread_cond_init) __gthrw_pthread_cond_init __attribute__ ((__weakref__("pthread_cond_init"), __copy__ (pthread_cond_init)));
static __typeof(pthread_cond_broadcast) __gthrw_pthread_cond_broadcast __attribute__ ((__weakref__("pthread_cond_broadcast"), __copy__ (pthread_cond_broadcast)));
static __typeof(pthread_cond_signal) __gthrw_pthread_cond_signal __attribute__ ((__weakref__("pthread_cond_signal"), __copy__ (pthread_cond_signal)));
static __typeof(pthread_cond_wait) __gthrw_pthread_cond_wait __attribute__ ((__weakref__("pthread_cond_wait"), __copy__ (pthread_cond_wait)));
static __typeof(pthread_cond_timedwait) __gthrw_pthread_cond_timedwait __attribute__ ((__weakref__("pthread_cond_timedwait"), __copy__ (pthread_cond_timedwait)));
static __typeof(pthread_cond_destroy) __gthrw_pthread_cond_destroy __attribute__ ((__weakref__("pthread_cond_destroy"), __copy__ (pthread_cond_destroy)));

static __typeof(pthread_key_create) __gthrw_pthread_key_create __attribute__ ((__weakref__("pthread_key_create"), __copy__ (pthread_key_create)));
static __typeof(pthread_key_delete) __gthrw_pthread_key_delete __attribute__ ((__weakref__("pthread_key_delete"), __copy__ (pthread_key_delete)));
static __typeof(pthread_mutexattr_init) __gthrw_pthread_mutexattr_init __attribute__ ((__weakref__("pthread_mutexattr_init"), __copy__ (pthread_mutexattr_init)));
static __typeof(pthread_mutexattr_settype) __gthrw_pthread_mutexattr_settype __attribute__ ((__weakref__("pthread_mutexattr_settype"), __copy__ (pthread_mutexattr_settype)));
static __typeof(pthread_mutexattr_destroy) __gthrw_pthread_mutexattr_destroy __attribute__ ((__weakref__("pthread_mutexattr_destroy"), __copy__ (pthread_mutexattr_destroy)));
# 237 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static __typeof(pthread_key_create) __gthrw___pthread_key_create __attribute__ ((__weakref__("__pthread_key_create"), __copy__ (pthread_key_create)));
# 247 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static inline int
__gthread_active_p (void)
{
  static void *const __gthread_active_ptr
    = __extension__ (void *) &__gthrw___pthread_key_create;
  return __gthread_active_ptr != 0;
}
# 659 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static inline int
__gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
    void *__args)
{
  return __gthrw_pthread_create (__threadid, __null, __func, __args);
}

static inline int
__gthread_join (__gthread_t __threadid, void **__value_ptr)
{
  return __gthrw_pthread_join (__threadid, __value_ptr);
}

static inline int
__gthread_detach (__gthread_t __threadid)
{
  return __gthrw_pthread_detach (__threadid);
}

static inline int
__gthread_equal (__gthread_t __t1, __gthread_t __t2)
{
  return __gthrw_pthread_equal (__t1, __t2);
}

static inline __gthread_t
__gthread_self (void)
{
  return __gthrw_pthread_self ();
}

static inline int
__gthread_yield (void)
{
  return __gthrw_sched_yield ();
}

static inline int
__gthread_once (__gthread_once_t *__once, void (*__func) (void))
{
  if (__gthread_active_p ())
    return __gthrw_pthread_once (__once, __func);
  else
    return -1;
}

static inline int
__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
{
  return __gthrw_pthread_key_create (__key, __dtor);
}

static inline int
__gthread_key_delete (__gthread_key_t __key)
{
  return __gthrw_pthread_key_delete (__key);
}

static inline void *
__gthread_getspecific (__gthread_key_t __key)
{
  return __gthrw_pthread_getspecific (__key);
}

static inline int
__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
{
  return __gthrw_pthread_setspecific (__key, __ptr);
}

static inline void
__gthread_mutex_init_function (__gthread_mutex_t *__mutex)
{
  if (__gthread_active_p ())
    __gthrw_pthread_mutex_init (__mutex, __null);
}

static inline int
__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
{
  if (__gthread_active_p ())
    return __gthrw_pthread_mutex_destroy (__mutex);
  else
    return 0;
}

static inline int
__gthread_mutex_lock (__gthread_mutex_t *__mutex)
{
  if (__gthread_active_p ())
    return __gthrw_pthread_mutex_lock (__mutex);
  else
    return 0;
}

static inline int
__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
{
  if (__gthread_active_p ())
    return __gthrw_pthread_mutex_trylock (__mutex);
  else
    return 0;
}


static inline int
__gthread_mutex_timedlock (__gthread_mutex_t *__mutex,
      const __gthread_time_t *__abs_timeout)
{
  if (__gthread_active_p ())
    return __gthrw_pthread_mutex_timedlock (__mutex, __abs_timeout);
  else
    return 0;
}


static inline int
__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
{
  if (__gthread_active_p ())
    return __gthrw_pthread_mutex_unlock (__mutex);
  else
    return 0;
}
# 808 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static inline int
__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
{
  return __gthread_mutex_lock (__mutex);
}

static inline int
__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
{
  return __gthread_mutex_trylock (__mutex);
}


static inline int
__gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex,
         const __gthread_time_t *__abs_timeout)
{
  return __gthread_mutex_timedlock (__mutex, __abs_timeout);
}


static inline int
__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
{
  return __gthread_mutex_unlock (__mutex);
}

static inline int
__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex)
{
  return __gthread_mutex_destroy (__mutex);
}
# 850 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr-default.h" 3
static inline int
__gthread_cond_broadcast (__gthread_cond_t *__cond)
{
  return __gthrw_pthread_cond_broadcast (__cond);
}

static inline int
__gthread_cond_signal (__gthread_cond_t *__cond)
{
  return __gthrw_pthread_cond_signal (__cond);
}

static inline int
__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
{
  return __gthrw_pthread_cond_wait (__cond, __mutex);
}

static inline int
__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
     const __gthread_time_t *__abs_timeout)
{
  return __gthrw_pthread_cond_timedwait (__cond, __mutex, __abs_timeout);
}

static inline int
__gthread_cond_wait_recursive (__gthread_cond_t *__cond,
          __gthread_recursive_mutex_t *__mutex)
{
  return __gthread_cond_wait (__cond, __mutex);
}

static inline int
__gthread_cond_destroy (__gthread_cond_t* __cond)
{
  return __gthrw_pthread_cond_destroy (__cond);
}
# 149 "/usr/include/c++/11/x86_64-redhat-linux/bits/gthr.h" 2 3


#pragma GCC visibility pop
# 36 "/usr/include/c++/11/ext/atomicity.h" 2 3
# 1 "/usr/include/c++/11/x86_64-redhat-linux/bits/atomic_word.h" 1 3
# 32 "/usr/include/c++/11/x86_64-redhat-linux/bits/atomic_word.h" 3
typedef int _Atomic_word;
# 37 "/usr/include/c++/11/ext/atomicity.h" 2 3

# 1 "/usr/include/sys/single_threaded.h" 1 3 4
# 24 "/usr/include/sys/single_threaded.h" 3 4
extern "C" {




extern char __libc_single_threaded;

}
# 39 "/usr/include/c++/11/ext/atomicity.h" 2 3


namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{


  __attribute__((__always_inline__))
  inline bool
  __is_single_threaded() noexcept
  {



    return ::__libc_single_threaded;



  }






  inline _Atomic_word
  __attribute__((__always_inline__))
  __exchange_and_add(volatile _Atomic_word* __mem, int __val)
  { return __atomic_fetch_add(__mem, __val, 4); }

  inline void
  __attribute__((__always_inline__))
  __atomic_add(volatile _Atomic_word* __mem, int __val)
  { __atomic_fetch_add(__mem, __val, 4); }
# 80 "/usr/include/c++/11/ext/atomicity.h" 3
  inline _Atomic_word
  __attribute__((__always_inline__))
  __exchange_and_add_single(_Atomic_word* __mem, int __val)
  {
    _Atomic_word __result = *__mem;
    *__mem += __val;
    return __result;
  }

  inline void
  __attribute__((__always_inline__))
  __atomic_add_single(_Atomic_word* __mem, int __val)
  { *__mem += __val; }

  inline _Atomic_word
  __attribute__ ((__always_inline__))
  __exchange_and_add_dispatch(_Atomic_word* __mem, int __val)
  {
    if (__is_single_threaded())
      return __exchange_and_add_single(__mem, __val);
    else
      return __exchange_and_add(__mem, __val);
  }

  inline void
  __attribute__ ((__always_inline__))
  __atomic_add_dispatch(_Atomic_word* __mem, int __val)
  {
    if (__is_single_threaded())
      __atomic_add_single(__mem, __val);
    else
      __atomic_add(__mem, __val);
  }


}
# 62 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3
# 1 "/usr/include/c++/11/ext/concurrence.h" 1 3
# 32 "/usr/include/c++/11/ext/concurrence.h" 3
       
# 33 "/usr/include/c++/11/ext/concurrence.h" 3

# 1 "/usr/include/c++/11/exception" 1 3
# 33 "/usr/include/c++/11/exception" 3
       
# 34 "/usr/include/c++/11/exception" 3

#pragma GCC visibility push(default)




extern "C++" {

namespace std
{






  class bad_exception : public exception
  {
  public:
    bad_exception() noexcept { }



    virtual ~bad_exception() noexcept;


    virtual const char*
    what() const noexcept;
  };


  typedef void (*terminate_handler) ();


  typedef void (*unexpected_handler) ();


  terminate_handler set_terminate(terminate_handler) noexcept;



  terminate_handler get_terminate() noexcept;




  void terminate() noexcept __attribute__ ((__noreturn__));


  unexpected_handler set_unexpected(unexpected_handler) noexcept;



  unexpected_handler get_unexpected() noexcept;




  void unexpected() __attribute__ ((__noreturn__));
# 105 "/usr/include/c++/11/exception" 3
 
  bool uncaught_exception() noexcept __attribute__ ((__pure__));
# 115 "/usr/include/c++/11/exception" 3
}

namespace __gnu_cxx
{

# 137 "/usr/include/c++/11/exception" 3
  void __verbose_terminate_handler();


}

}

#pragma GCC visibility pop


# 1 "/usr/include/c++/11/bits/exception_ptr.h" 1 3
# 34 "/usr/include/c++/11/bits/exception_ptr.h" 3
#pragma GCC visibility push(default)



# 1 "/usr/include/c++/11/bits/cxxabi_init_exception.h" 1 3
# 34 "/usr/include/c++/11/bits/cxxabi_init_exception.h" 3
       
# 35 "/usr/include/c++/11/bits/cxxabi_init_exception.h" 3

#pragma GCC visibility push(default)

# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 39 "/usr/include/c++/11/bits/cxxabi_init_exception.h" 2 3
# 50 "/usr/include/c++/11/bits/cxxabi_init_exception.h" 3
namespace std
{
  class type_info;
}

namespace __cxxabiv1
{
  struct __cxa_refcounted_exception;

  extern "C"
    {

      void*
      __cxa_allocate_exception(size_t) noexcept;

      void
      __cxa_free_exception(void*) noexcept;


      __cxa_refcounted_exception*
      __cxa_init_primary_exception(void *object, std::type_info *tinfo,
                void ( *dest) (void *)) noexcept;

    }
}



#pragma GCC visibility pop
# 39 "/usr/include/c++/11/bits/exception_ptr.h" 2 3
# 48 "/usr/include/c++/11/bits/exception_ptr.h" 3
extern "C++" {

namespace std
{
  class type_info;






  namespace __exception_ptr
  {
    class exception_ptr;
  }

  using __exception_ptr::exception_ptr;





  exception_ptr current_exception() noexcept;

  template<typename _Ex>
  exception_ptr make_exception_ptr(_Ex) noexcept;


  void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));

  namespace __exception_ptr
  {
    using std::rethrow_exception;





    class exception_ptr
    {
      void* _M_exception_object;

      explicit exception_ptr(void* __e) noexcept;

      void _M_addref() noexcept;
      void _M_release() noexcept;

      void *_M_get() const noexcept __attribute__ ((__pure__));

      friend exception_ptr std::current_exception() noexcept;
      friend void std::rethrow_exception(exception_ptr);
      template<typename _Ex>
      friend exception_ptr std::make_exception_ptr(_Ex) noexcept;

    public:
      exception_ptr() noexcept;

      exception_ptr(const exception_ptr&) noexcept;


      exception_ptr(nullptr_t) noexcept
      : _M_exception_object(nullptr)
      { }

      exception_ptr(exception_ptr&& __o) noexcept
      : _M_exception_object(__o._M_exception_object)
      { __o._M_exception_object = nullptr; }
# 124 "/usr/include/c++/11/bits/exception_ptr.h" 3
      exception_ptr&
      operator=(const exception_ptr&) noexcept;


      exception_ptr&
      operator=(exception_ptr&& __o) noexcept
      {
        exception_ptr(static_cast<exception_ptr&&>(__o)).swap(*this);
        return *this;
      }


      ~exception_ptr() noexcept;

      void
      swap(exception_ptr&) noexcept;
# 151 "/usr/include/c++/11/bits/exception_ptr.h" 3
      explicit operator bool() const noexcept
      { return _M_exception_object; }







      friend bool
      operator==(const exception_ptr& __x, const exception_ptr& __y)
      noexcept
      { return __x._M_exception_object == __y._M_exception_object; }

      friend bool
      operator!=(const exception_ptr& __x, const exception_ptr& __y)
      noexcept
      { return __x._M_exception_object != __y._M_exception_object; }


      const class std::type_info*
      __cxa_exception_type() const noexcept
 __attribute__ ((__pure__));
    };

   
    inline
    exception_ptr::exception_ptr() noexcept
    : _M_exception_object(0)
    { }

   
    inline
    exception_ptr::exception_ptr(const exception_ptr& __other) noexcept
    : _M_exception_object(__other._M_exception_object)
    {
      if (_M_exception_object)
 _M_addref();
    }

   
    inline
    exception_ptr::~exception_ptr() noexcept
    {
      if (_M_exception_object)
 _M_release();
    }

   
    inline exception_ptr&
    exception_ptr::operator=(const exception_ptr& __other) noexcept
    {
      exception_ptr(__other).swap(*this);
      return *this;
    }

   
    inline void
    exception_ptr::swap(exception_ptr &__other) noexcept
    {
      void *__tmp = _M_exception_object;
      _M_exception_object = __other._M_exception_object;
      __other._M_exception_object = __tmp;
    }


    inline void
    swap(exception_ptr& __lhs, exception_ptr& __rhs)
    { __lhs.swap(__rhs); }


    template<typename _Ex>
      inline void
      __dest_thunk(void* __x)
      { static_cast<_Ex*>(__x)->~_Ex(); }


  }


  template<typename _Ex>
    exception_ptr
    make_exception_ptr(_Ex __ex) noexcept
    {
# 260 "/usr/include/c++/11/bits/exception_ptr.h" 3
      return exception_ptr();

    }




}

}

#pragma GCC visibility pop
# 148 "/usr/include/c++/11/exception" 2 3
# 1 "/usr/include/c++/11/bits/nested_exception.h" 1 3
# 33 "/usr/include/c++/11/bits/nested_exception.h" 3
#pragma GCC visibility push(default)
# 42 "/usr/include/c++/11/bits/nested_exception.h" 3
extern "C++" {

namespace std
{






  class nested_exception
  {
    exception_ptr _M_ptr;

  public:
    nested_exception() noexcept : _M_ptr(current_exception()) { }

    nested_exception(const nested_exception&) noexcept = default;

    nested_exception& operator=(const nested_exception&) noexcept = default;

    virtual ~nested_exception() noexcept;

    [[noreturn]]
    void
    rethrow_nested() const
    {
      if (_M_ptr)
 rethrow_exception(_M_ptr);
      std::terminate();
    }

    exception_ptr
    nested_ptr() const noexcept
    { return _M_ptr; }
  };



  template<typename _Except>
    struct _Nested_exception : public _Except, public nested_exception
    {
      explicit _Nested_exception(const _Except& __ex)
      : _Except(__ex)
      { }

      explicit _Nested_exception(_Except&& __ex)
      : _Except(static_cast<_Except&&>(__ex))
      { }
    };




  template<typename _Tp>
    [[noreturn]]
    inline void
    __throw_with_nested_impl(_Tp&& __t, true_type)
    {
      using _Up = typename remove_reference<_Tp>::type;
      throw _Nested_exception<_Up>{std::forward<_Tp>(__t)};
    }

  template<typename _Tp>
    [[noreturn]]
    inline void
    __throw_with_nested_impl(_Tp&& __t, false_type)
    { throw std::forward<_Tp>(__t); }





  template<typename _Tp>
    [[noreturn]]
    inline void
    throw_with_nested(_Tp&& __t)
    {
      using _Up = typename decay<_Tp>::type;
      using _CopyConstructible
 = __and_<is_copy_constructible<_Up>, is_move_constructible<_Up>>;
      static_assert(_CopyConstructible::value,
   "throw_with_nested argument must be CopyConstructible");
      using __nest = __and_<is_class<_Up>, __bool_constant<!__is_final(_Up)>,
       __not_<is_base_of<nested_exception, _Up>>>;
      std::__throw_with_nested_impl(std::forward<_Tp>(__t), __nest{});
    }




  template<typename _Tp>
    using __rethrow_if_nested_cond = typename enable_if<
      __and_<is_polymorphic<_Tp>,
      __or_<__not_<is_base_of<nested_exception, _Tp>>,
     is_convertible<_Tp*, nested_exception*>>>::value
    >::type;


  template<typename _Ex>
    inline __rethrow_if_nested_cond<_Ex>
    __rethrow_if_nested_impl(const _Ex* __ptr)
    {
      if (auto __ne_ptr = dynamic_cast<const nested_exception*>(__ptr))
 __ne_ptr->rethrow_nested();
    }


  inline void
  __rethrow_if_nested_impl(const void*)
  { }




  template<typename _Ex>
    inline void
    rethrow_if_nested(const _Ex& __ex)
    { std::__rethrow_if_nested_impl(std::__addressof(__ex)); }


}

}



#pragma GCC visibility pop
# 149 "/usr/include/c++/11/exception" 2 3
# 35 "/usr/include/c++/11/ext/concurrence.h" 2 3





namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
{







  enum _Lock_policy { _S_single, _S_mutex, _S_atomic };



  static const _Lock_policy __default_lock_policy =



  _S_atomic;






  class __concurrence_lock_error : public std::exception
  {
  public:
    virtual char const*
    what() const throw()
    { return "__gnu_cxx::__concurrence_lock_error"; }
  };

  class __concurrence_unlock_error : public std::exception
  {
  public:
    virtual char const*
    what() const throw()
    { return "__gnu_cxx::__concurrence_unlock_error"; }
  };

  class __concurrence_broadcast_error : public std::exception
  {
  public:
    virtual char const*
    what() const throw()
    { return "__gnu_cxx::__concurrence_broadcast_error"; }
  };

  class __concurrence_wait_error : public std::exception
  {
  public:
    virtual char const*
    what() const throw()
    { return "__gnu_cxx::__concurrence_wait_error"; }
  };


  inline void
  __throw_concurrence_lock_error()
  { (__builtin_abort()); }

  inline void
  __throw_concurrence_unlock_error()
  { (__builtin_abort()); }


  inline void
  __throw_concurrence_broadcast_error()
  { (__builtin_abort()); }

  inline void
  __throw_concurrence_wait_error()
  { (__builtin_abort()); }


  class __mutex
  {
  private:

    __gthread_mutex_t _M_mutex = { { 0, 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, 0, { 0, 0 } } };




    __mutex(const __mutex&);
    __mutex& operator=(const __mutex&);

  public:
    __mutex()
    {




    }
# 144 "/usr/include/c++/11/ext/concurrence.h" 3
    void lock()
    {

      if (__gthread_active_p())
 {
   if (__gthread_mutex_lock(&_M_mutex) != 0)
     __throw_concurrence_lock_error();
 }

    }

    void unlock()
    {

      if (__gthread_active_p())
 {
   if (__gthread_mutex_unlock(&_M_mutex) != 0)
     __throw_concurrence_unlock_error();
 }

    }

    __gthread_mutex_t* gthread_mutex(void)
      { return &_M_mutex; }
  };

  class __recursive_mutex
  {
  private:

    __gthread_recursive_mutex_t _M_mutex = { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, 0, { 0, 0 } } };




    __recursive_mutex(const __recursive_mutex&);
    __recursive_mutex& operator=(const __recursive_mutex&);

  public:
    __recursive_mutex()
    {




    }
# 199 "/usr/include/c++/11/ext/concurrence.h" 3
    void lock()
    {

      if (__gthread_active_p())
 {
   if (__gthread_recursive_mutex_lock(&_M_mutex) != 0)
     __throw_concurrence_lock_error();
 }

    }

    void unlock()
    {

      if (__gthread_active_p())
 {
   if (__gthread_recursive_mutex_unlock(&_M_mutex) != 0)
     __throw_concurrence_unlock_error();
 }

    }

    __gthread_recursive_mutex_t* gthread_recursive_mutex(void)
    { return &_M_mutex; }
  };




  class __scoped_lock
  {
  public:
    typedef __mutex __mutex_type;

  private:
    __mutex_type& _M_device;

    __scoped_lock(const __scoped_lock&);
    __scoped_lock& operator=(const __scoped_lock&);

  public:
    explicit __scoped_lock(__mutex_type& __name) : _M_device(__name)
    { _M_device.lock(); }

    ~__scoped_lock() throw()
    { _M_device.unlock(); }
  };


  class __cond
  {
  private:

    __gthread_cond_t _M_cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } };




    __cond(const __cond&);
    __cond& operator=(const __cond&);

  public:
    __cond()
    {




    }
# 277 "/usr/include/c++/11/ext/concurrence.h" 3
    void broadcast()
    {

      if (__gthread_active_p())
 {
   if (__gthread_cond_broadcast(&_M_cond) != 0)
     __throw_concurrence_broadcast_error();
 }

    }

    void wait(__mutex *mutex)
    {

      {
   if (__gthread_cond_wait(&_M_cond, mutex->gthread_mutex()) != 0)
     __throw_concurrence_wait_error();
      }

    }

    void wait_recursive(__recursive_mutex *mutex)
    {

      {
   if (__gthread_cond_wait_recursive(&_M_cond,
         mutex->gthread_recursive_mutex())
       != 0)
     __throw_concurrence_wait_error();
      }

    }
  };



}
# 63 "/usr/include/c++/11/bits/shared_ptr_base.h" 2 3




namespace std __attribute__ ((__visibility__ ("default")))
{



#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
  template<typename> class auto_ptr;
#pragma GCC diagnostic pop






  class bad_weak_ptr : public std::exception
  {
  public:
    virtual char const* what() const noexcept;

    virtual ~bad_weak_ptr() noexcept;
  };


  inline void
  __throw_bad_weak_ptr()
  { (__builtin_abort()); }

  using __gnu_cxx::_Lock_policy;
  using __gnu_cxx::__default_lock_policy;
  using __gnu_cxx::_S_single;
  using __gnu_cxx::_S_mutex;
  using __gnu_cxx::_S_atomic;


  template<_Lock_policy _Lp>
    class _Mutex_base
    {
    protected:

      enum { _S_need_barriers = 0 };
    };

  template<>
    class _Mutex_base<_S_mutex>
    : public __gnu_cxx::__mutex
    {
    protected:



      enum { _S_need_barriers = 1 };
    };

  template<_Lock_policy _Lp = __default_lock_policy>
    class _Sp_counted_base
    : public _Mutex_base<_Lp>
    {
    public:
      _Sp_counted_base() noexcept
      : _M_use_count(1), _M_weak_count(1) { }

      virtual
      ~_Sp_counted_base() noexcept
      { }



      virtual void
      _M_dispose() noexcept = 0;


      virtual void
      _M_destroy() noexcept
      { delete this; }

      virtual void*
      _M_get_deleter(const std::type_info&) noexcept = 0;

      void
      _M_add_ref_copy()
      { __gnu_cxx::__atomic_add_dispatch(&_M_use_count, 1); }

      void
      _M_add_ref_lock()
      {
 if (!_M_add_ref_lock_nothrow())
   __throw_bad_weak_ptr();
      }

      bool
      _M_add_ref_lock_nothrow() noexcept;

      void
      _M_release() noexcept
      {

        ;
 if (__gnu_cxx::__exchange_and_add_dispatch(&_M_use_count, -1) == 1)
   {
            ;
     _M_dispose();




     if (_Mutex_base<_Lp>::_S_need_barriers)
       {
  __atomic_thread_fence (4);
       }


            ;
     if (__gnu_cxx::__exchange_and_add_dispatch(&_M_weak_count,
             -1) == 1)
              {
                ;
         _M_destroy();
              }
   }
      }

      void
      _M_weak_add_ref() noexcept
      { __gnu_cxx::__atomic_add_dispatch(&_M_weak_count, 1); }

      void
      _M_weak_release() noexcept
      {

        ;
 if (__gnu_cxx::__exchange_and_add_dispatch(&_M_weak_count, -1) == 1)
   {
            ;
     if (_Mutex_base<_Lp>::_S_need_barriers)
       {


  __atomic_thread_fence (4);
       }
     _M_destroy();
   }
      }

      long
      _M_get_use_count() const noexcept
      {


        return __atomic_load_n(&_M_use_count, 0);
      }

    private:
      _Sp_counted_base(_Sp_counted_base const&) = delete;
      _Sp_counted_base& operator=(_Sp_counted_base const&) = delete;

      _Atomic_word _M_use_count;
      _Atomic_word _M_weak_count;
    };

  template<>
    inline bool
    _Sp_counted_base<_S_single>::
    _M_add_ref_lock_nothrow() noexcept
    {
      if (_M_use_count == 0)
 return false;
      ++_M_use_count;
      return true;
    }

  template<>
    inline bool
    _Sp_counted_base<_S_mutex>::
    _M_add_ref_lock_nothrow() noexcept
    {
      __gnu_cxx::__scoped_lock sentry(*this);
      if (__gnu_cxx::__exchange_and_add_dispatch(&_M_use_count, 1) == 0)
 {
   _M_use_count = 0;
   return false;
 }
      return true;
    }

  template<>
    inline bool
    _Sp_counted_base<_S_atomic>::
    _M_add_ref_lock_nothrow() noexcept
    {

      _Atomic_word __count = _M_get_use_count();
      do
 {
   if (__count == 0)
     return false;


 }
      while (!__atomic_compare_exchange_n(&_M_use_count, &__count, __count + 1,
       true, 4,
       0));
      return true;
    }

  template<>
    inline void
    _Sp_counted_base<_S_single>::_M_add_ref_copy()
    { ++_M_use_count; }

  template<>
    inline void
    _Sp_counted_base<_S_single>::_M_release() noexcept
    {
      if (--_M_use_count == 0)
        {
          _M_dispose();
          if (--_M_weak_count == 0)
            _M_destroy();
        }
    }

  template<>
    inline void
    _Sp_counted_base<_S_single>::_M_weak_add_ref() noexcept
    { ++_M_weak_count; }

  template<>
    inline void
    _Sp_counted_base<_S_single>::_M_weak_release() noexcept
    {
      if (--_M_weak_count == 0)
        _M_destroy();
    }

  template<>
    inline long
    _Sp_counted_base<_S_single>::_M_get_use_count() const noexcept
    { return _M_use_count; }



  template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
    class __shared_ptr;

  template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
    class __weak_ptr;

  template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
    class __enable_shared_from_this;

  template<typename _Tp>
    class shared_ptr;

  template<typename _Tp>
    class weak_ptr;

  template<typename _Tp>
    struct owner_less;

  template<typename _Tp>
    class enable_shared_from_this;

  template<_Lock_policy _Lp = __default_lock_policy>
    class __weak_count;

  template<_Lock_policy _Lp = __default_lock_policy>
    class __shared_count;



  template<typename _Ptr, _Lock_policy _Lp>
    class _Sp_counted_ptr final : public _Sp_counted_base<_Lp>
    {
    public:
      explicit
      _Sp_counted_ptr(_Ptr __p) noexcept
      : _M_ptr(__p) { }

      virtual void
      _M_dispose() noexcept
      { delete _M_ptr; }

      virtual void
      _M_destroy() noexcept
      { delete this; }

      virtual void*
      _M_get_deleter(const std::type_info&) noexcept
      { return nullptr; }

      _Sp_counted_ptr(const _Sp_counted_ptr&) = delete;
      _Sp_counted_ptr& operator=(const _Sp_counted_ptr&) = delete;

    private:
      _Ptr _M_ptr;
    };

  template<>
    inline void
    _Sp_counted_ptr<nullptr_t, _S_single>::_M_dispose() noexcept { }

  template<>
    inline void
    _Sp_counted_ptr<nullptr_t, _S_mutex>::_M_dispose() noexcept { }

  template<>
    inline void
    _Sp_counted_ptr<nullptr_t, _S_atomic>::_M_dispose() noexcept { }

  template<int _Nm, typename _Tp,
    bool __use_ebo = !__is_final(_Tp) && __is_empty(_Tp)>
    struct _Sp_ebo_helper;


  template<int _Nm, typename _Tp>
    struct _Sp_ebo_helper<_Nm, _Tp, true> : private _Tp
    {
      explicit _Sp_ebo_helper(const _Tp& __tp) : _Tp(__tp) { }
      explicit _Sp_ebo_helper(_Tp&& __tp) : _Tp(std::move(__tp)) { }

      static _Tp&
      _S_get(_Sp_ebo_helper& __eboh) { return static_cast<_Tp&>(__eboh); }
    };


  template<int _Nm, typename _Tp>
    struct _Sp_ebo_helper<_Nm, _Tp, false>
    {
      explicit _Sp_ebo_helper(const _Tp& __tp) : _M_tp(__tp) { }
      explicit _Sp_ebo_helper(_Tp&& __tp) : _M_tp(std::move(__tp)) { }

      static _Tp&
      _S_get(_Sp_ebo_helper& __eboh)
      { return __eboh._M_tp; }

    private:
      _Tp _M_tp;
    };


  template<typename _Ptr, typename _Deleter, typename _Alloc, _Lock_policy _Lp>
    class _Sp_counted_deleter final : public _Sp_counted_base<_Lp>
    {
      class _Impl : _Sp_ebo_helper<0, _Deleter>, _Sp_ebo_helper<1, _Alloc>
      {
 typedef _Sp_ebo_helper<0, _Deleter> _Del_base;
 typedef _Sp_ebo_helper<1, _Alloc> _Alloc_base;

      public:
 _Impl(_Ptr __p, _Deleter __d, const _Alloc& __a) noexcept
 : _Del_base(std::move(__d)), _Alloc_base(__a), _M_ptr(__p)
 { }

 _Deleter& _M_del() noexcept { return _Del_base::_S_get(*this); }
 _Alloc& _M_alloc() noexcept { return _Alloc_base::_S_get(*this); }

 _Ptr _M_ptr;
      };

    public:
      using __allocator_type = __alloc_rebind<_Alloc, _Sp_counted_deleter>;


      _Sp_counted_deleter(_Ptr __p, _Deleter __d) noexcept
      : _M_impl(__p, std::move(__d), _Alloc()) { }


      _Sp_counted_deleter(_Ptr __p, _Deleter __d, const _Alloc& __a) noexcept
      : _M_impl(__p, std::move(__d), __a) { }

      ~_Sp_counted_deleter() noexcept { }

      virtual void
      _M_dispose() noexcept
      { _M_impl._M_del()(_M_impl._M_ptr); }

      virtual void
      _M_destroy() noexcept
      {
 __allocator_type __a(_M_impl._M_alloc());
 __allocated_ptr<__allocator_type> __guard_ptr{ __a, this };
 this->~_Sp_counted_deleter();
      }

      virtual void*
      _M_get_deleter(const std::type_info& __ti) noexcept
      {



        return __ti == typeid(_Deleter)
   ? std::__addressof(_M_impl._M_del())
   : nullptr;



      }

    private:
      _Impl _M_impl;
    };



  struct _Sp_make_shared_tag
  {
  private:
    template<typename _Tp, typename _Alloc, _Lock_policy _Lp>
      friend class _Sp_counted_ptr_inplace;

    static const type_info&
    _S_ti() noexcept __attribute__ ((__visibility__ ("default")))
    {
      alignas(type_info) static constexpr char __tag[sizeof(type_info)] = { };
      return reinterpret_cast<const type_info&>(__tag);
    }

    static bool _S_eq(const type_info&) noexcept;
  };

  template<typename _Alloc>
    struct _Sp_alloc_shared_tag
    {
      const _Alloc& _M_a;
    };

  template<typename _Tp, typename _Alloc, _Lock_policy _Lp>
    class _Sp_counted_ptr_inplace final : public _Sp_counted_base<_Lp>
    {
      class _Impl : _Sp_ebo_helper<0, _Alloc>
      {
 typedef _Sp_ebo_helper<0, _Alloc> _A_base;

      public:
 explicit _Impl(_Alloc __a) noexcept : _A_base(__a) { }

 _Alloc& _M_alloc() noexcept { return _A_base::_S_get(*this); }

 __gnu_cxx::__aligned_buffer<_Tp> _M_storage;
      };

    public:
      using __allocator_type = __alloc_rebind<_Alloc, _Sp_counted_ptr_inplace>;


      template<typename... _Args>
 _Sp_counted_ptr_inplace(_Alloc __a, _Args&&... __args)
 : _M_impl(__a)
 {


   allocator_traits<_Alloc>::construct(__a, _M_ptr(),
       std::forward<_Args>(__args)...);
 }

      ~_Sp_counted_ptr_inplace() noexcept { }

      virtual void
      _M_dispose() noexcept
      {
 allocator_traits<_Alloc>::destroy(_M_impl._M_alloc(), _M_ptr());
      }


      virtual void
      _M_destroy() noexcept
      {
 __allocator_type __a(_M_impl._M_alloc());
 __allocated_ptr<__allocator_type> __guard_ptr{ __a, this };
 this->~_Sp_counted_ptr_inplace();
      }

    private:
      friend class __shared_count<_Lp>;



      virtual void*
      _M_get_deleter(const std::type_info& __ti) noexcept override
      {
 auto __ptr = const_cast<typename remove_cv<_Tp>::type*>(_M_ptr());




 if (&__ti == &_Sp_make_shared_tag::_S_ti()
     ||

     __ti == typeid(_Sp_make_shared_tag)



    )
   return __ptr;
 return nullptr;
      }

      _Tp* _M_ptr() noexcept { return _M_impl._M_storage._M_ptr(); }

      _Impl _M_impl;
    };


  struct __sp_array_delete
  {
    template<typename _Yp>
      void operator()(_Yp* __p) const { delete[] __p; }
  };

  template<_Lock_policy _Lp>
    class __shared_count
    {
      template<typename _Tp>
 struct __not_alloc_shared_tag { using type = void; };

      template<typename _Tp>
 struct __not_alloc_shared_tag<_Sp_alloc_shared_tag<_Tp>> { };

    public:
      constexpr __shared_count() noexcept : _M_pi(0)
      { }

      template<typename _Ptr>
        explicit
 __shared_count(_Ptr __p) : _M_pi(0)
 {
   if (true)
     {
       _M_pi = new _Sp_counted_ptr<_Ptr, _Lp>(__p);
     }
   if (false)
     {
       delete __p;
       ;
     }
 }

      template<typename _Ptr>
 __shared_count(_Ptr __p, false_type)
 : __shared_count(__p)
 { }

      template<typename _Ptr>
 __shared_count(_Ptr __p, true_type)
 : __shared_count(__p, __sp_array_delete{}, allocator<void>())
 { }

      template<typename _Ptr, typename _Deleter,
        typename = typename __not_alloc_shared_tag<_Deleter>::type>
 __shared_count(_Ptr __p, _Deleter __d)
 : __shared_count(__p, std::move(__d), allocator<void>())
 { }

      template<typename _Ptr, typename _Deleter, typename _Alloc,
        typename = typename __not_alloc_shared_tag<_Deleter>::type>
 __shared_count(_Ptr __p, _Deleter __d, _Alloc __a) : _M_pi(0)
 {
   typedef _Sp_counted_deleter<_Ptr, _Deleter, _Alloc, _Lp> _Sp_cd_type;
   if (true)
     {
       typename _Sp_cd_type::__allocator_type __a2(__a);
       auto __guard = std::__allocate_guarded(__a2);
       _Sp_cd_type* __mem = __guard.get();
       ::new (__mem) _Sp_cd_type(__p, std::move(__d), std::move(__a));
       _M_pi = __mem;
       __guard = nullptr;
     }
   if (false)
     {
       __d(__p);
       ;
     }
 }

      template<typename _Tp, typename _Alloc, typename... _Args>
 __shared_count(_Tp*& __p, _Sp_alloc_shared_tag<_Alloc> __a,
         _Args&&... __args)
 {
   typedef _Sp_counted_ptr_inplace<_Tp, _Alloc, _Lp> _Sp_cp_type;
   typename _Sp_cp_type::__allocator_type __a2(__a._M_a);
   auto __guard = std::__allocate_guarded(__a2);
   _Sp_cp_type* __mem = __guard.get();
   auto __pi = ::new (__mem)
     _Sp_cp_type(__a._M_a, std::forward<_Args>(__args)...);
   __guard = nullptr;
   _M_pi = __pi;
   __p = __pi->_M_ptr();
 }


#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

      template<typename _Tp>
        explicit
 __shared_count(std::auto_ptr<_Tp>&& __r);
#pragma GCC diagnostic pop



      template<typename _Tp, typename _Del>
        explicit
 __shared_count(std::unique_ptr<_Tp, _Del>&& __r) : _M_pi(0)
 {


   if (__r.get() == nullptr)
     return;

   using _Ptr = typename unique_ptr<_Tp, _Del>::pointer;
   using _Del2 = typename conditional<is_reference<_Del>::value,
       reference_wrapper<typename remove_reference<_Del>::type>,
       _Del>::type;
   using _Sp_cd_type
     = _Sp_counted_deleter<_Ptr, _Del2, allocator<void>, _Lp>;
   using _Alloc = allocator<_Sp_cd_type>;
   using _Alloc_traits = allocator_traits<_Alloc>;
   _Alloc __a;
   _Sp_cd_type* __mem = _Alloc_traits::allocate(__a, 1);
   _Alloc_traits::construct(__a, __mem, __r.release(),
       __r.get_deleter());
   _M_pi = __mem;
 }


      explicit __shared_count(const __weak_count<_Lp>& __r);


      explicit
      __shared_count(const __weak_count<_Lp>& __r, std::nothrow_t) noexcept;

      ~__shared_count() noexcept
      {
 if (_M_pi != nullptr)
   _M_pi->_M_release();
      }

      __shared_count(const __shared_count& __r) noexcept
      : _M_pi(__r._M_pi)
      {
 if (_M_pi != nullptr)
   _M_pi->_M_add_ref_copy();
      }

      __shared_count&
      operator=(const __shared_count& __r) noexcept
      {
 _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
 if (__tmp != _M_pi)
   {
     if (__tmp != nullptr)
       __tmp->_M_add_ref_copy();
     if (_M_pi != nullptr)
       _M_pi->_M_release();
     _M_pi = __tmp;
   }
 return *this;
      }

      void
      _M_swap(__shared_count& __r) noexcept
      {
 _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
 __r._M_pi = _M_pi;
 _M_pi = __tmp;
      }

      long
      _M_get_use_count() const noexcept
      { return _M_pi ? _M_pi->_M_get_use_count() : 0; }

      bool
      _M_unique() const noexcept
      { return this->_M_get_use_count() == 1; }

      void*
      _M_get_deleter(const std::type_info& __ti) const noexcept
      { return _M_pi ? _M_pi->_M_get_deleter(__ti) : nullptr; }

      bool
      _M_less(const __shared_count& __rhs) const noexcept
      { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); }

      bool
      _M_less(const __weak_count<_Lp>& __rhs) const noexcept
      { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); }


      friend inline bool
      operator==(const __shared_count& __a, const __shared_count& __b) noexcept
      { return __a._M_pi == __b._M_pi; }

    private:
      friend class __weak_count<_Lp>;

      _Sp_counted_base<_Lp>* _M_pi;
    };


  template<_Lock_policy _Lp>
    class __weak_count
    {
    public:
      constexpr __weak_count() noexcept : _M_pi(nullptr)
      { }

      __weak_count(const __shared_count<_Lp>& __r) noexcept
      : _M_pi(__r._M_pi)
      {
 if (_M_pi != nullptr)
   _M_pi->_M_weak_add_ref();
      }

      __weak_count(const __weak_count& __r) noexcept
      : _M_pi(__r._M_pi)
      {
 if (_M_pi != nullptr)
   _M_pi->_M_weak_add_ref();
      }

      __weak_count(__weak_count&& __r) noexcept
      : _M_pi(__r._M_pi)
      { __r._M_pi = nullptr; }

      ~__weak_count() noexcept
      {
 if (_M_pi != nullptr)
   _M_pi->_M_weak_release();
      }

      __weak_count&
      operator=(const __shared_count<_Lp>& __r) noexcept
      {
 _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
 if (__tmp != nullptr)
   __tmp->_M_weak_add_ref();
 if (_M_pi != nullptr)
   _M_pi->_M_weak_release();
 _M_pi = __tmp;
 return *this;
      }

      __weak_count&
      operator=(const __weak_count& __r) noexcept
      {
 _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
 if (__tmp != nullptr)
   __tmp->_M_weak_add_ref();
 if (_M_pi != nullptr)
   _M_pi->_M_weak_release();
 _M_pi = __tmp;
 return *this;
      }

      __weak_count&
      operator=(__weak_count&& __r) noexcept
      {
 if (_M_pi != nullptr)
   _M_pi->_M_weak_release();
 _M_pi = __r._M_pi;
        __r._M_pi = nullptr;
 return *this;
      }

      void
      _M_swap(__weak_count& __r) noexcept
      {
 _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
 __r._M_pi = _M_pi;
 _M_pi = __tmp;
      }

      long
      _M_get_use_count() const noexcept
      { return _M_pi != nullptr ? _M_pi->_M_get_use_count() : 0; }

      bool
      _M_less(const __weak_count& __rhs) const noexcept
      { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); }

      bool
      _M_less(const __shared_count<_Lp>& __rhs) const noexcept
      { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); }


      friend inline bool
      operator==(const __weak_count& __a, const __weak_count& __b) noexcept
      { return __a._M_pi == __b._M_pi; }

    private:
      friend class __shared_count<_Lp>;

      _Sp_counted_base<_Lp>* _M_pi;
    };


  template<_Lock_policy _Lp>
    inline
    __shared_count<_Lp>::__shared_count(const __weak_count<_Lp>& __r)
    : _M_pi(__r._M_pi)
    {
      if (_M_pi == nullptr || !_M_pi->_M_add_ref_lock_nothrow())
 __throw_bad_weak_ptr();
    }


  template<_Lock_policy _Lp>
    inline
    __shared_count<_Lp>::
    __shared_count(const __weak_count<_Lp>& __r, std::nothrow_t) noexcept
    : _M_pi(__r._M_pi)
    {
      if (_M_pi && !_M_pi->_M_add_ref_lock_nothrow())
 _M_pi = nullptr;
    }







  template<typename _Yp_ptr, typename _Tp_ptr>
    struct __sp_compatible_with
    : false_type
    { };

  template<typename _Yp, typename _Tp>
    struct __sp_compatible_with<_Yp*, _Tp*>
    : is_convertible<_Yp*, _Tp*>::type
    { };

  template<typename _Up, size_t _Nm>
    struct __sp_compatible_with<_Up(*)[_Nm], _Up(*)[]>
    : true_type
    { };

  template<typename _Up, size_t _Nm>
    struct __sp_compatible_with<_Up(*)[_Nm], const _Up(*)[]>
    : true_type
    { };

  template<typename _Up, size_t _Nm>
    struct __sp_compatible_with<_Up(*)[_Nm], volatile _Up(*)[]>
    : true_type
    { };

  template<typename _Up, size_t _Nm>
    struct __sp_compatible_with<_Up(*)[_Nm], const volatile _Up(*)[]>
    : true_type
    { };


  template<typename _Up, size_t _Nm, typename _Yp, typename = void>
    struct __sp_is_constructible_arrN
    : false_type
    { };

  template<typename _Up, size_t _Nm, typename _Yp>
    struct __sp_is_constructible_arrN<_Up, _Nm, _Yp, __void_t<_Yp[_Nm]>>
    : is_convertible<_Yp(*)[_Nm], _Up(*)[_Nm]>::type
    { };


  template<typename _Up, typename _Yp, typename = void>
    struct __sp_is_constructible_arr
    : false_type
    { };

  template<typename _Up, typename _Yp>
    struct __sp_is_constructible_arr<_Up, _Yp, __void_t<_Yp[]>>
    : is_convertible<_Yp(*)[], _Up(*)[]>::type
    { };


  template<typename _Tp, typename _Yp>
    struct __sp_is_constructible;


  template<typename _Up, size_t _Nm, typename _Yp>
    struct __sp_is_constructible<_Up[_Nm], _Yp>
    : __sp_is_constructible_arrN<_Up, _Nm, _Yp>::type
    { };


  template<typename _Up, typename _Yp>
    struct __sp_is_constructible<_Up[], _Yp>
    : __sp_is_constructible_arr<_Up, _Yp>::type
    { };


  template<typename _Tp, typename _Yp>
    struct __sp_is_constructible
    : is_convertible<_Yp*, _Tp*>::type
    { };



  template<typename _Tp, _Lock_policy _Lp,
    bool = is_array<_Tp>::value, bool = is_void<_Tp>::value>
    class __shared_ptr_access
    {
    public:
      using element_type = _Tp;

      element_type&
      operator*() const noexcept
      {
 do { { if (__builtin_expect(!bool(_M_get() != nullptr), false)) std::__replacement_assert("/usr/include/c++/11/bits/shared_ptr_base.h", 976, __PRETTY_FUNCTION__, "_M_get() != nullptr"); } } while (false);
 return *_M_get();
      }

      element_type*
      operator->() const noexcept
      {
 ;
 return _M_get();
      }

    private:
      element_type*
      _M_get() const noexcept
      { return static_cast<const __shared_ptr<_Tp, _Lp>*>(this)->get(); }
    };


  template<typename _Tp, _Lock_policy _Lp>
    class __shared_ptr_access<_Tp, _Lp, false, true>
    {
    public:
      using element_type = _Tp;

      element_type*
      operator->() const noexcept
      {
 auto __ptr = static_cast<const __shared_ptr<_Tp, _Lp>*>(this)->get();
 ;
 return __ptr;
      }
    };


  template<typename _Tp, _Lock_policy _Lp>
    class __shared_ptr_access<_Tp, _Lp, true, false>
    {
    public:
      using element_type = typename remove_extent<_Tp>::type;


      [[__deprecated__("shared_ptr<T[]>::operator* is absent from C++17")]]
      element_type&
      operator*() const noexcept
      {
 do { { if (__builtin_expect(!bool(_M_get() != nullptr), false)) std::__replacement_assert("/usr/include/c++/11/bits/shared_ptr_base.h", 1021, __PRETTY_FUNCTION__, "_M_get() != nullptr"); } } while (false);
 return *_M_get();
      }

      [[__deprecated__("shared_ptr<T[]>::operator-> is absent from C++17")]]
      element_type*
      operator->() const noexcept
      {
 ;
 return _M_get();
      }


      element_type&
      operator[](ptrdiff_t __i) const
      {
 do { { if (__builtin_expect(!bool(_M_get() != nullptr), false)) std::__replacement_assert("/usr/include/c++/11/bits/shared_ptr_base.h", 1037, __PRETTY_FUNCTION__, "_M_get() != nullptr"); } } while (false);
 do { { if (__builtin_expect(!bool(!extent<_Tp>::value || __i < extent<_Tp>::value), false)) std::__replacement_assert("/usr/include/c++/11/bits/shared_ptr_base.h", 1038, __PRETTY_FUNCTION__, "!extent<_Tp>::value || __i < extent<_Tp>::value"); } } while (false);
 return _M_get()[__i];
      }

    private:
      element_type*
      _M_get() const noexcept
      { return static_cast<const __shared_ptr<_Tp, _Lp>*>(this)->get(); }
    };

  template<typename _Tp, _Lock_policy _Lp>
    class __shared_ptr
    : public __shared_ptr_access<_Tp, _Lp>
    {
    public:
      using element_type = typename remove_extent<_Tp>::type;

    private:

      template<typename _Yp>
 using _SafeConv
   = typename enable_if<__sp_is_constructible<_Tp, _Yp>::value>::type;


      template<typename _Yp, typename _Res = void>
 using _Compatible = typename
   enable_if<__sp_compatible_with<_Yp*, _Tp*>::value, _Res>::type;


      template<typename _Yp>
 using _Assignable = _Compatible<_Yp, __shared_ptr&>;


      template<typename _Yp, typename _Del, typename _Res = void,
        typename _Ptr = typename unique_ptr<_Yp, _Del>::pointer>
 using _UniqCompatible = typename enable_if<__and_<
   __sp_compatible_with<_Yp*, _Tp*>, is_convertible<_Ptr, element_type*>
   >::value, _Res>::type;


      template<typename _Yp, typename _Del>
 using _UniqAssignable = _UniqCompatible<_Yp, _Del, __shared_ptr&>;

    public:





      constexpr __shared_ptr() noexcept
      : _M_ptr(0), _M_refcount()
      { }

      template<typename _Yp, typename = _SafeConv<_Yp>>
 explicit
 __shared_ptr(_Yp* __p)
 : _M_ptr(__p), _M_refcount(__p, typename is_array<_Tp>::type())
 {
   static_assert( !is_void<_Yp>::value, "incomplete type" );
   static_assert( sizeof(_Yp) > 0, "incomplete type" );
   _M_enable_shared_from_this_with(__p);
 }

      template<typename _Yp, typename _Deleter, typename = _SafeConv<_Yp>>
 __shared_ptr(_Yp* __p, _Deleter __d)
 : _M_ptr(__p), _M_refcount(__p, std::move(__d))
 {
   static_assert(__is_invocable<_Deleter&, _Yp*&>::value,
       "deleter expression d(p) is well-formed");
   _M_enable_shared_from_this_with(__p);
 }

      template<typename _Yp, typename _Deleter, typename _Alloc,
        typename = _SafeConv<_Yp>>
 __shared_ptr(_Yp* __p, _Deleter __d, _Alloc __a)
 : _M_ptr(__p), _M_refcount(__p, std::move(__d), std::move(__a))
 {
   static_assert(__is_invocable<_Deleter&, _Yp*&>::value,
       "deleter expression d(p) is well-formed");
   _M_enable_shared_from_this_with(__p);
 }

      template<typename _Deleter>
 __shared_ptr(nullptr_t __p, _Deleter __d)
 : _M_ptr(0), _M_refcount(__p, std::move(__d))
 { }

      template<typename _Deleter, typename _Alloc>
        __shared_ptr(nullptr_t __p, _Deleter __d, _Alloc __a)
 : _M_ptr(0), _M_refcount(__p, std::move(__d), std::move(__a))
 { }


      template<typename _Yp>
 __shared_ptr(const __shared_ptr<_Yp, _Lp>& __r,
       element_type* __p) noexcept
 : _M_ptr(__p), _M_refcount(__r._M_refcount)
 { }


      template<typename _Yp>
 __shared_ptr(__shared_ptr<_Yp, _Lp>&& __r,
       element_type* __p) noexcept
 : _M_ptr(__p), _M_refcount()
 {
   _M_refcount._M_swap(__r._M_refcount);
   __r._M_ptr = nullptr;
 }

      __shared_ptr(const __shared_ptr&) noexcept = default;
      __shared_ptr& operator=(const __shared_ptr&) noexcept = default;
      ~__shared_ptr() = default;

      template<typename _Yp, typename = _Compatible<_Yp>>
 __shared_ptr(const __shared_ptr<_Yp, _Lp>& __r) noexcept
 : _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount)
 { }

      __shared_ptr(__shared_ptr&& __r) noexcept
      : _M_ptr(__r._M_ptr), _M_refcount()
      {
 _M_refcount._M_swap(__r._M_refcount);
 __r._M_ptr = nullptr;
      }

      template<typename _Yp, typename = _Compatible<_Yp>>
 __shared_ptr(__shared_ptr<_Yp, _Lp>&& __r) noexcept
 : _M_ptr(__r._M_ptr), _M_refcount()
 {
   _M_refcount._M_swap(__r._M_refcount);
   __r._M_ptr = nullptr;
 }

      template<typename _Yp, typename = _Compatible<_Yp>>
 explicit __shared_ptr(const __weak_ptr<_Yp, _Lp>& __r)
 : _M_refcount(__r._M_refcount)
 {


   _M_ptr = __r._M_ptr;
 }


      template<typename _Yp, typename _Del,
        typename = _UniqCompatible<_Yp, _Del>>
 __shared_ptr(unique_ptr<_Yp, _Del>&& __r)
 : _M_ptr(__r.get()), _M_refcount()
 {
   auto __raw = __to_address(__r.get());
   _M_refcount = __shared_count<_Lp>(std::move(__r));
   _M_enable_shared_from_this_with(__raw);
 }


    protected:

      template<typename _Tp1, typename _Del,
        typename enable_if<__and_<
   __not_<is_array<_Tp>>, is_array<_Tp1>,
          is_convertible<typename unique_ptr<_Tp1, _Del>::pointer, _Tp*>
        >::value, bool>::type = true>
 __shared_ptr(unique_ptr<_Tp1, _Del>&& __r, __sp_array_delete)
 : _M_ptr(__r.get()), _M_refcount()
 {
   auto __raw = __to_address(__r.get());
   _M_refcount = __shared_count<_Lp>(std::move(__r));
   _M_enable_shared_from_this_with(__raw);
 }
    public:



#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

      template<typename _Yp, typename = _Compatible<_Yp>>
 __shared_ptr(auto_ptr<_Yp>&& __r);
#pragma GCC diagnostic pop


      constexpr __shared_ptr(nullptr_t) noexcept : __shared_ptr() { }

      template<typename _Yp>
 _Assignable<_Yp>
 operator=(const __shared_ptr<_Yp, _Lp>& __r) noexcept
 {
   _M_ptr = __r._M_ptr;
   _M_refcount = __r._M_refcount;
   return *this;
 }


#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
      template<typename _Yp>
 _Assignable<_Yp>
 operator=(auto_ptr<_Yp>&& __r)
 {
   __shared_ptr(std::move(__r)).swap(*this);
   return *this;
 }
#pragma GCC diagnostic pop


      __shared_ptr&
      operator=(__shared_ptr&& __r) noexcept
      {
 __shared_ptr(std::move(__r)).swap(*this);
 return *this;
      }

      template<class _Yp>
 _Assignable<_Yp>
 operator=(__shared_ptr<_Yp, _Lp>&& __r) noexcept
 {
   __shared_ptr(std::move(__r)).swap(*this);
   return *this;
 }

      template<typename _Yp, typename _Del>
 _UniqAssignable<_Yp, _Del>
 operator=(unique_ptr<_Yp, _Del>&& __r)
 {
   __shared_ptr(std::move(__r)).swap(*this);
   return *this;
 }

      void
      reset() noexcept
      { __shared_ptr().swap(*this); }

      template<typename _Yp>
 _SafeConv<_Yp>
 reset(_Yp* __p)
 {

   do { { if (__builtin_expect(!bool(__p == nullptr || __p != _M_ptr), false)) std::__replacement_assert("/usr/include/c++/11/bits/shared_ptr_base.h", 1274, __PRETTY_FUNCTION__, "__p == nullptr || __p != _M_ptr"); } } while (false);
   __shared_ptr(__p).swap(*this);
 }

      template<typename _Yp, typename _Deleter>
 _SafeConv<_Yp>
 reset(_Yp* __p, _Deleter __d)
 { __shared_ptr(__p, std::move(__d)).swap(*this); }

      template<typename _Yp, typename _Deleter, typename _Alloc>
 _SafeConv<_Yp>
 reset(_Yp* __p, _Deleter __d, _Alloc __a)
        { __shared_ptr(__p, std::move(__d), std::move(__a)).swap(*this); }


      element_type*
      get() const noexcept
      { return _M_ptr; }


      explicit operator bool() const noexcept
      { return _M_ptr != nullptr; }


      bool
      unique() const noexcept
      { return _M_refcount._M_unique(); }


      long
      use_count() const noexcept
      { return _M_refcount._M_get_use_count(); }


      void
      swap(__shared_ptr<_Tp, _Lp>& __other) noexcept
      {
 std::swap(_M_ptr, __other._M_ptr);
 _M_refcount._M_swap(__other._M_refcount);
      }
# 1322 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
      template<typename _Tp1>
 bool
 owner_before(__shared_ptr<_Tp1, _Lp> const& __rhs) const noexcept
 { return _M_refcount._M_less(__rhs._M_refcount); }

      template<typename _Tp1>
 bool
 owner_before(__weak_ptr<_Tp1, _Lp> const& __rhs) const noexcept
 { return _M_refcount._M_less(__rhs._M_refcount); }


    protected:

      template<typename _Alloc, typename... _Args>
 __shared_ptr(_Sp_alloc_shared_tag<_Alloc> __tag, _Args&&... __args)
 : _M_ptr(), _M_refcount(_M_ptr, __tag, std::forward<_Args>(__args)...)
 { _M_enable_shared_from_this_with(_M_ptr); }

      template<typename _Tp1, _Lock_policy _Lp1, typename _Alloc,
        typename... _Args>
 friend __shared_ptr<_Tp1, _Lp1>
 __allocate_shared(const _Alloc& __a, _Args&&... __args);



      __shared_ptr(const __weak_ptr<_Tp, _Lp>& __r, std::nothrow_t) noexcept
      : _M_refcount(__r._M_refcount, std::nothrow)
      {
 _M_ptr = _M_refcount._M_get_use_count() ? __r._M_ptr : nullptr;
      }

      friend class __weak_ptr<_Tp, _Lp>;

    private:

      template<typename _Yp>
 using __esft_base_t = decltype(__enable_shared_from_this_base(
       std::declval<const __shared_count<_Lp>&>(),
       std::declval<_Yp*>()));


      template<typename _Yp, typename = void>
 struct __has_esft_base
 : false_type { };

      template<typename _Yp>
 struct __has_esft_base<_Yp, __void_t<__esft_base_t<_Yp>>>
 : __not_<is_array<_Tp>> { };

      template<typename _Yp, typename _Yp2 = typename remove_cv<_Yp>::type>
 typename enable_if<__has_esft_base<_Yp2>::value>::type
 _M_enable_shared_from_this_with(_Yp* __p) noexcept
 {
   if (auto __base = __enable_shared_from_this_base(_M_refcount, __p))
     __base->_M_weak_assign(const_cast<_Yp2*>(__p), _M_refcount);
 }

      template<typename _Yp, typename _Yp2 = typename remove_cv<_Yp>::type>
 typename enable_if<!__has_esft_base<_Yp2>::value>::type
 _M_enable_shared_from_this_with(_Yp*) noexcept
 { }

      void*
      _M_get_deleter(const std::type_info& __ti) const noexcept
      { return _M_refcount._M_get_deleter(__ti); }

      template<typename _Tp1, _Lock_policy _Lp1> friend class __shared_ptr;
      template<typename _Tp1, _Lock_policy _Lp1> friend class __weak_ptr;

      template<typename _Del, typename _Tp1, _Lock_policy _Lp1>
 friend _Del* get_deleter(const __shared_ptr<_Tp1, _Lp1>&) noexcept;

      template<typename _Del, typename _Tp1>
 friend _Del* get_deleter(const shared_ptr<_Tp1>&) noexcept;

      element_type* _M_ptr;
      __shared_count<_Lp> _M_refcount;
    };



  template<typename _Tp1, typename _Tp2, _Lock_policy _Lp>
    inline bool
    operator==(const __shared_ptr<_Tp1, _Lp>& __a,
        const __shared_ptr<_Tp2, _Lp>& __b) noexcept
    { return __a.get() == __b.get(); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator==(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    { return !__a; }
# 1429 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator==(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    { return !__a; }

  template<typename _Tp1, typename _Tp2, _Lock_policy _Lp>
    inline bool
    operator!=(const __shared_ptr<_Tp1, _Lp>& __a,
        const __shared_ptr<_Tp2, _Lp>& __b) noexcept
    { return __a.get() != __b.get(); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator!=(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    { return (bool)__a; }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator!=(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    { return (bool)__a; }

  template<typename _Tp, typename _Up, _Lock_policy _Lp>
    inline bool
    operator<(const __shared_ptr<_Tp, _Lp>& __a,
       const __shared_ptr<_Up, _Lp>& __b) noexcept
    {
      using _Tp_elt = typename __shared_ptr<_Tp, _Lp>::element_type;
      using _Up_elt = typename __shared_ptr<_Up, _Lp>::element_type;
      using _Vp = typename common_type<_Tp_elt*, _Up_elt*>::type;
      return less<_Vp>()(__a.get(), __b.get());
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator<(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    {
      using _Tp_elt = typename __shared_ptr<_Tp, _Lp>::element_type;
      return less<_Tp_elt*>()(__a.get(), nullptr);
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator<(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    {
      using _Tp_elt = typename __shared_ptr<_Tp, _Lp>::element_type;
      return less<_Tp_elt*>()(nullptr, __a.get());
    }

  template<typename _Tp1, typename _Tp2, _Lock_policy _Lp>
    inline bool
    operator<=(const __shared_ptr<_Tp1, _Lp>& __a,
        const __shared_ptr<_Tp2, _Lp>& __b) noexcept
    { return !(__b < __a); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator<=(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    { return !(nullptr < __a); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator<=(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    { return !(__a < nullptr); }

  template<typename _Tp1, typename _Tp2, _Lock_policy _Lp>
    inline bool
    operator>(const __shared_ptr<_Tp1, _Lp>& __a,
       const __shared_ptr<_Tp2, _Lp>& __b) noexcept
    { return (__b < __a); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator>(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    { return nullptr < __a; }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator>(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    { return __a < nullptr; }

  template<typename _Tp1, typename _Tp2, _Lock_policy _Lp>
    inline bool
    operator>=(const __shared_ptr<_Tp1, _Lp>& __a,
        const __shared_ptr<_Tp2, _Lp>& __b) noexcept
    { return !(__a < __b); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator>=(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
    { return !(__a < nullptr); }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    operator>=(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
    { return !(nullptr < __a); }



  template<typename _Tp, _Lock_policy _Lp>
    inline void
    swap(__shared_ptr<_Tp, _Lp>& __a, __shared_ptr<_Tp, _Lp>& __b) noexcept
    { __a.swap(__b); }
# 1539 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
  template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    static_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r) noexcept
    {
      using _Sp = __shared_ptr<_Tp, _Lp>;
      return _Sp(__r, static_cast<typename _Sp::element_type*>(__r.get()));
    }






  template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    const_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r) noexcept
    {
      using _Sp = __shared_ptr<_Tp, _Lp>;
      return _Sp(__r, const_cast<typename _Sp::element_type*>(__r.get()));
    }






  template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    dynamic_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r) noexcept
    {
      using _Sp = __shared_ptr<_Tp, _Lp>;
      if (auto* __p = dynamic_cast<typename _Sp::element_type*>(__r.get()))
 return _Sp(__r, __p);
      return _Sp();
    }
# 1585 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
  template<typename _Tp, _Lock_policy _Lp>
    class __weak_ptr
    {
      template<typename _Yp, typename _Res = void>
 using _Compatible = typename
   enable_if<__sp_compatible_with<_Yp*, _Tp*>::value, _Res>::type;


      template<typename _Yp>
 using _Assignable = _Compatible<_Yp, __weak_ptr&>;

    public:
      using element_type = typename remove_extent<_Tp>::type;

      constexpr __weak_ptr() noexcept
      : _M_ptr(nullptr), _M_refcount()
      { }

      __weak_ptr(const __weak_ptr&) noexcept = default;

      ~__weak_ptr() = default;
# 1621 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
      template<typename _Yp, typename = _Compatible<_Yp>>
 __weak_ptr(const __weak_ptr<_Yp, _Lp>& __r) noexcept
 : _M_refcount(__r._M_refcount)
        { _M_ptr = __r.lock().get(); }

      template<typename _Yp, typename = _Compatible<_Yp>>
 __weak_ptr(const __shared_ptr<_Yp, _Lp>& __r) noexcept
 : _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount)
 { }

      __weak_ptr(__weak_ptr&& __r) noexcept
      : _M_ptr(__r._M_ptr), _M_refcount(std::move(__r._M_refcount))
      { __r._M_ptr = nullptr; }

      template<typename _Yp, typename = _Compatible<_Yp>>
 __weak_ptr(__weak_ptr<_Yp, _Lp>&& __r) noexcept
 : _M_ptr(__r.lock().get()), _M_refcount(std::move(__r._M_refcount))
        { __r._M_ptr = nullptr; }

      __weak_ptr&
      operator=(const __weak_ptr& __r) noexcept = default;

      template<typename _Yp>
 _Assignable<_Yp>
 operator=(const __weak_ptr<_Yp, _Lp>& __r) noexcept
 {
   _M_ptr = __r.lock().get();
   _M_refcount = __r._M_refcount;
   return *this;
 }

      template<typename _Yp>
 _Assignable<_Yp>
 operator=(const __shared_ptr<_Yp, _Lp>& __r) noexcept
 {
   _M_ptr = __r._M_ptr;
   _M_refcount = __r._M_refcount;
   return *this;
 }

      __weak_ptr&
      operator=(__weak_ptr&& __r) noexcept
      {
 _M_ptr = __r._M_ptr;
 _M_refcount = std::move(__r._M_refcount);
 __r._M_ptr = nullptr;
 return *this;
      }

      template<typename _Yp>
 _Assignable<_Yp>
 operator=(__weak_ptr<_Yp, _Lp>&& __r) noexcept
 {
   _M_ptr = __r.lock().get();
   _M_refcount = std::move(__r._M_refcount);
   __r._M_ptr = nullptr;
   return *this;
 }

      __shared_ptr<_Tp, _Lp>
      lock() const noexcept
      { return __shared_ptr<element_type, _Lp>(*this, std::nothrow); }

      long
      use_count() const noexcept
      { return _M_refcount._M_get_use_count(); }

      bool
      expired() const noexcept
      { return _M_refcount._M_get_use_count() == 0; }

      template<typename _Tp1>
 bool
 owner_before(const __shared_ptr<_Tp1, _Lp>& __rhs) const noexcept
 { return _M_refcount._M_less(__rhs._M_refcount); }

      template<typename _Tp1>
 bool
 owner_before(const __weak_ptr<_Tp1, _Lp>& __rhs) const noexcept
 { return _M_refcount._M_less(__rhs._M_refcount); }

      void
      reset() noexcept
      { __weak_ptr().swap(*this); }

      void
      swap(__weak_ptr& __s) noexcept
      {
 std::swap(_M_ptr, __s._M_ptr);
 _M_refcount._M_swap(__s._M_refcount);
      }

    private:

      void
      _M_assign(_Tp* __ptr, const __shared_count<_Lp>& __refcount) noexcept
      {
 if (use_count() == 0)
   {
     _M_ptr = __ptr;
     _M_refcount = __refcount;
   }
      }

      template<typename _Tp1, _Lock_policy _Lp1> friend class __shared_ptr;
      template<typename _Tp1, _Lock_policy _Lp1> friend class __weak_ptr;
      friend class __enable_shared_from_this<_Tp, _Lp>;
      friend class enable_shared_from_this<_Tp>;

      element_type* _M_ptr;
      __weak_count<_Lp> _M_refcount;
    };


  template<typename _Tp, _Lock_policy _Lp>
    inline void
    swap(__weak_ptr<_Tp, _Lp>& __a, __weak_ptr<_Tp, _Lp>& __b) noexcept
    { __a.swap(__b); }

  template<typename _Tp, typename _Tp1>
    struct _Sp_owner_less : public binary_function<_Tp, _Tp, bool>
    {
      bool
      operator()(const _Tp& __lhs, const _Tp& __rhs) const noexcept
      { return __lhs.owner_before(__rhs); }

      bool
      operator()(const _Tp& __lhs, const _Tp1& __rhs) const noexcept
      { return __lhs.owner_before(__rhs); }

      bool
      operator()(const _Tp1& __lhs, const _Tp& __rhs) const noexcept
      { return __lhs.owner_before(__rhs); }
    };

  template<>
    struct _Sp_owner_less<void, void>
    {
      template<typename _Tp, typename _Up>
 auto
 operator()(const _Tp& __lhs, const _Up& __rhs) const noexcept
 -> decltype(__lhs.owner_before(__rhs))
 { return __lhs.owner_before(__rhs); }

      using is_transparent = void;
    };

  template<typename _Tp, _Lock_policy _Lp>
    struct owner_less<__shared_ptr<_Tp, _Lp>>
    : public _Sp_owner_less<__shared_ptr<_Tp, _Lp>, __weak_ptr<_Tp, _Lp>>
    { };

  template<typename _Tp, _Lock_policy _Lp>
    struct owner_less<__weak_ptr<_Tp, _Lp>>
    : public _Sp_owner_less<__weak_ptr<_Tp, _Lp>, __shared_ptr<_Tp, _Lp>>
    { };


  template<typename _Tp, _Lock_policy _Lp>
    class __enable_shared_from_this
    {
    protected:
      constexpr __enable_shared_from_this() noexcept { }

      __enable_shared_from_this(const __enable_shared_from_this&) noexcept { }

      __enable_shared_from_this&
      operator=(const __enable_shared_from_this&) noexcept
      { return *this; }

      ~__enable_shared_from_this() { }

    public:
      __shared_ptr<_Tp, _Lp>
      shared_from_this()
      { return __shared_ptr<_Tp, _Lp>(this->_M_weak_this); }

      __shared_ptr<const _Tp, _Lp>
      shared_from_this() const
      { return __shared_ptr<const _Tp, _Lp>(this->_M_weak_this); }
# 1812 "/usr/include/c++/11/bits/shared_ptr_base.h" 3
    private:
      template<typename _Tp1>
 void
 _M_weak_assign(_Tp1* __p, const __shared_count<_Lp>& __n) const noexcept
 { _M_weak_this._M_assign(__p, __n); }

      friend const __enable_shared_from_this*
      __enable_shared_from_this_base(const __shared_count<_Lp>&,
         const __enable_shared_from_this* __p)
      { return __p; }

      template<typename, _Lock_policy>
 friend class __shared_ptr;

      mutable __weak_ptr<_Tp, _Lp> _M_weak_this;
    };

  template<typename _Tp, _Lock_policy _Lp = __default_lock_policy,
    typename _Alloc, typename... _Args>
    inline __shared_ptr<_Tp, _Lp>
    __allocate_shared(const _Alloc& __a, _Args&&... __args)
    {
      return __shared_ptr<_Tp, _Lp>(_Sp_alloc_shared_tag<_Alloc>{__a},
        std::forward<_Args>(__args)...);
    }

  template<typename _Tp, _Lock_policy _Lp = __default_lock_policy,
    typename... _Args>
    inline __shared_ptr<_Tp, _Lp>
    __make_shared(_Args&&... __args)
    {
      typedef typename std::remove_const<_Tp>::type _Tp_nc;
      return std::__allocate_shared<_Tp, _Lp>(std::allocator<_Tp_nc>(),
           std::forward<_Args>(__args)...);
    }


  template<typename _Tp, _Lock_policy _Lp>
    struct hash<__shared_ptr<_Tp, _Lp>>
    : public __hash_base<size_t, __shared_ptr<_Tp, _Lp>>
    {
      size_t
      operator()(const __shared_ptr<_Tp, _Lp>& __s) const noexcept
      {
 return hash<typename __shared_ptr<_Tp, _Lp>::element_type*>()(
     __s.get());
      }
    };


}
# 54 "/usr/include/c++/11/bits/shared_ptr.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{

# 68 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Ch, typename _Tr, typename _Tp, _Lock_policy _Lp>
    inline std::basic_ostream<_Ch, _Tr>&
    operator<<(std::basic_ostream<_Ch, _Tr>& __os,
        const __shared_ptr<_Tp, _Lp>& __p)
    {
      __os << __p.get();
      return __os;
    }

  template<typename _Del, typename _Tp, _Lock_policy _Lp>
    inline _Del*
    get_deleter(const __shared_ptr<_Tp, _Lp>& __p) noexcept
    {

      return static_cast<_Del*>(__p._M_get_deleter(typeid(_Del)));



    }





  template<typename _Del, typename _Tp>
    inline _Del*
    get_deleter(const shared_ptr<_Tp>& __p) noexcept
    {

      return static_cast<_Del*>(__p._M_get_deleter(typeid(_Del)));



    }
# 121 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp>
    class shared_ptr : public __shared_ptr<_Tp>
    {
      template<typename... _Args>
 using _Constructible = typename enable_if<
   is_constructible<__shared_ptr<_Tp>, _Args...>::value
 >::type;

      template<typename _Arg>
 using _Assignable = typename enable_if<
   is_assignable<__shared_ptr<_Tp>&, _Arg>::value, shared_ptr&
 >::type;

    public:


      using element_type = typename __shared_ptr<_Tp>::element_type;
# 148 "/usr/include/c++/11/bits/shared_ptr.h" 3
      constexpr shared_ptr() noexcept : __shared_ptr<_Tp>() { }

      shared_ptr(const shared_ptr&) noexcept = default;







      template<typename _Yp, typename = _Constructible<_Yp*>>
 explicit
 shared_ptr(_Yp* __p) : __shared_ptr<_Tp>(__p) { }
# 175 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Yp, typename _Deleter,
        typename = _Constructible<_Yp*, _Deleter>>
 shared_ptr(_Yp* __p, _Deleter __d)
        : __shared_ptr<_Tp>(__p, std::move(__d)) { }
# 193 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Deleter>
 shared_ptr(nullptr_t __p, _Deleter __d)
        : __shared_ptr<_Tp>(__p, std::move(__d)) { }
# 212 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Yp, typename _Deleter, typename _Alloc,
        typename = _Constructible<_Yp*, _Deleter, _Alloc>>
 shared_ptr(_Yp* __p, _Deleter __d, _Alloc __a)
 : __shared_ptr<_Tp>(__p, std::move(__d), std::move(__a)) { }
# 232 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Deleter, typename _Alloc>
 shared_ptr(nullptr_t __p, _Deleter __d, _Alloc __a)
 : __shared_ptr<_Tp>(__p, std::move(__d), std::move(__a)) { }
# 256 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Yp>
 shared_ptr(const shared_ptr<_Yp>& __r, element_type* __p) noexcept
 : __shared_ptr<_Tp>(__r, __p) { }
# 294 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Yp,
        typename = _Constructible<const shared_ptr<_Yp>&>>
 shared_ptr(const shared_ptr<_Yp>& __r) noexcept
        : __shared_ptr<_Tp>(__r) { }






      shared_ptr(shared_ptr&& __r) noexcept
      : __shared_ptr<_Tp>(std::move(__r)) { }






      template<typename _Yp, typename = _Constructible<shared_ptr<_Yp>>>
 shared_ptr(shared_ptr<_Yp>&& __r) noexcept
 : __shared_ptr<_Tp>(std::move(__r)) { }
# 324 "/usr/include/c++/11/bits/shared_ptr.h" 3
      template<typename _Yp, typename = _Constructible<const weak_ptr<_Yp>&>>
 explicit shared_ptr(const weak_ptr<_Yp>& __r)
 : __shared_ptr<_Tp>(__r) { }


#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
      template<typename _Yp, typename = _Constructible<auto_ptr<_Yp>>>
 shared_ptr(auto_ptr<_Yp>&& __r);
#pragma GCC diagnostic pop




      template<typename _Yp, typename _Del,
        typename = _Constructible<unique_ptr<_Yp, _Del>>>
 shared_ptr(unique_ptr<_Yp, _Del>&& __r)
 : __shared_ptr<_Tp>(std::move(__r)) { }





      template<typename _Yp, typename _Del,
  _Constructible<unique_ptr<_Yp, _Del>, __sp_array_delete>* = 0>
 shared_ptr(unique_ptr<_Yp, _Del>&& __r)
 : __shared_ptr<_Tp>(std::move(__r), __sp_array_delete()) { }






      constexpr shared_ptr(nullptr_t) noexcept : shared_ptr() { }

      shared_ptr& operator=(const shared_ptr&) noexcept = default;

      template<typename _Yp>
 _Assignable<const shared_ptr<_Yp>&>
 operator=(const shared_ptr<_Yp>& __r) noexcept
 {
   this->__shared_ptr<_Tp>::operator=(__r);
   return *this;
 }


#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
      template<typename _Yp>
 _Assignable<auto_ptr<_Yp>>
 operator=(auto_ptr<_Yp>&& __r)
 {
   this->__shared_ptr<_Tp>::operator=(std::move(__r));
   return *this;
 }
#pragma GCC diagnostic pop


      shared_ptr&
      operator=(shared_ptr&& __r) noexcept
      {
 this->__shared_ptr<_Tp>::operator=(std::move(__r));
 return *this;
      }

      template<class _Yp>
 _Assignable<shared_ptr<_Yp>>
 operator=(shared_ptr<_Yp>&& __r) noexcept
 {
   this->__shared_ptr<_Tp>::operator=(std::move(__r));
   return *this;
 }

      template<typename _Yp, typename _Del>
 _Assignable<unique_ptr<_Yp, _Del>>
 operator=(unique_ptr<_Yp, _Del>&& __r)
 {
   this->__shared_ptr<_Tp>::operator=(std::move(__r));
   return *this;
 }

    private:

      template<typename _Alloc, typename... _Args>
 shared_ptr(_Sp_alloc_shared_tag<_Alloc> __tag, _Args&&... __args)
 : __shared_ptr<_Tp>(__tag, std::forward<_Args>(__args)...)
 { }

      template<typename _Yp, typename _Alloc, typename... _Args>
 friend shared_ptr<_Yp>
 allocate_shared(const _Alloc& __a, _Args&&... __args);


      shared_ptr(const weak_ptr<_Tp>& __r, std::nothrow_t) noexcept
      : __shared_ptr<_Tp>(__r, std::nothrow) { }

      friend class weak_ptr<_Tp>;
    };
# 435 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp, typename _Up>
    inline bool
    operator==(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    { return __a.get() == __b.get(); }


  template<typename _Tp>
    inline bool
    operator==(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    { return !__a; }
# 462 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp>
    inline bool
    operator==(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    { return !__a; }


  template<typename _Tp, typename _Up>
    inline bool
    operator!=(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    { return __a.get() != __b.get(); }


  template<typename _Tp>
    inline bool
    operator!=(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    { return (bool)__a; }


  template<typename _Tp>
    inline bool
    operator!=(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    { return (bool)__a; }


  template<typename _Tp, typename _Up>
    inline bool
    operator<(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    {
      using _Tp_elt = typename shared_ptr<_Tp>::element_type;
      using _Up_elt = typename shared_ptr<_Up>::element_type;
      using _Vp = typename common_type<_Tp_elt*, _Up_elt*>::type;
      return less<_Vp>()(__a.get(), __b.get());
    }


  template<typename _Tp>
    inline bool
    operator<(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    {
      using _Tp_elt = typename shared_ptr<_Tp>::element_type;
      return less<_Tp_elt*>()(__a.get(), nullptr);
    }


  template<typename _Tp>
    inline bool
    operator<(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    {
      using _Tp_elt = typename shared_ptr<_Tp>::element_type;
      return less<_Tp_elt*>()(nullptr, __a.get());
    }


  template<typename _Tp, typename _Up>
    inline bool
    operator<=(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    { return !(__b < __a); }


  template<typename _Tp>
    inline bool
    operator<=(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    { return !(nullptr < __a); }


  template<typename _Tp>
    inline bool
    operator<=(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    { return !(__a < nullptr); }


  template<typename _Tp, typename _Up>
    inline bool
    operator>(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    { return (__b < __a); }


  template<typename _Tp>
    inline bool
    operator>(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    { return nullptr < __a; }


  template<typename _Tp>
    inline bool
    operator>(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    { return __a < nullptr; }


  template<typename _Tp, typename _Up>
    inline bool
    operator>=(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
    { return !(__a < __b); }


  template<typename _Tp>
    inline bool
    operator>=(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
    { return !(__a < nullptr); }


  template<typename _Tp>
    inline bool
    operator>=(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
    { return !(nullptr < __a); }





  template<typename _Tp>
    inline void
    swap(shared_ptr<_Tp>& __a, shared_ptr<_Tp>& __b) noexcept
    { __a.swap(__b); }




  template<typename _Tp, typename _Up>
    inline shared_ptr<_Tp>
    static_pointer_cast(const shared_ptr<_Up>& __r) noexcept
    {
      using _Sp = shared_ptr<_Tp>;
      return _Sp(__r, static_cast<typename _Sp::element_type*>(__r.get()));
    }


  template<typename _Tp, typename _Up>
    inline shared_ptr<_Tp>
    const_pointer_cast(const shared_ptr<_Up>& __r) noexcept
    {
      using _Sp = shared_ptr<_Tp>;
      return _Sp(__r, const_cast<typename _Sp::element_type*>(__r.get()));
    }


  template<typename _Tp, typename _Up>
    inline shared_ptr<_Tp>
    dynamic_pointer_cast(const shared_ptr<_Up>& __r) noexcept
    {
      using _Sp = shared_ptr<_Tp>;
      if (auto* __p = dynamic_cast<typename _Sp::element_type*>(__r.get()))
 return _Sp(__r, __p);
      return _Sp();
    }
# 685 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp>
    class weak_ptr : public __weak_ptr<_Tp>
    {
      template<typename _Arg>
 using _Constructible = typename enable_if<
   is_constructible<__weak_ptr<_Tp>, _Arg>::value
 >::type;

      template<typename _Arg>
 using _Assignable = typename enable_if<
   is_assignable<__weak_ptr<_Tp>&, _Arg>::value, weak_ptr&
 >::type;

    public:
      constexpr weak_ptr() noexcept = default;

      template<typename _Yp,
        typename = _Constructible<const shared_ptr<_Yp>&>>
 weak_ptr(const shared_ptr<_Yp>& __r) noexcept
 : __weak_ptr<_Tp>(__r) { }

      weak_ptr(const weak_ptr&) noexcept = default;

      template<typename _Yp, typename = _Constructible<const weak_ptr<_Yp>&>>
 weak_ptr(const weak_ptr<_Yp>& __r) noexcept
 : __weak_ptr<_Tp>(__r) { }

      weak_ptr(weak_ptr&&) noexcept = default;

      template<typename _Yp, typename = _Constructible<weak_ptr<_Yp>>>
 weak_ptr(weak_ptr<_Yp>&& __r) noexcept
 : __weak_ptr<_Tp>(std::move(__r)) { }

      weak_ptr&
      operator=(const weak_ptr& __r) noexcept = default;

      template<typename _Yp>
 _Assignable<const weak_ptr<_Yp>&>
 operator=(const weak_ptr<_Yp>& __r) noexcept
 {
   this->__weak_ptr<_Tp>::operator=(__r);
   return *this;
 }

      template<typename _Yp>
 _Assignable<const shared_ptr<_Yp>&>
 operator=(const shared_ptr<_Yp>& __r) noexcept
 {
   this->__weak_ptr<_Tp>::operator=(__r);
   return *this;
 }

      weak_ptr&
      operator=(weak_ptr&& __r) noexcept = default;

      template<typename _Yp>
 _Assignable<weak_ptr<_Yp>>
 operator=(weak_ptr<_Yp>&& __r) noexcept
 {
   this->__weak_ptr<_Tp>::operator=(std::move(__r));
   return *this;
 }

      shared_ptr<_Tp>
      lock() const noexcept
      { return shared_ptr<_Tp>(*this, std::nothrow); }
    };
# 761 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp>
    inline void
    swap(weak_ptr<_Tp>& __a, weak_ptr<_Tp>& __b) noexcept
    { __a.swap(__b); }



  template<typename _Tp = void>
    struct owner_less;


  template<>
    struct owner_less<void> : _Sp_owner_less<void, void>
    { };


  template<typename _Tp>
    struct owner_less<shared_ptr<_Tp>>
    : public _Sp_owner_less<shared_ptr<_Tp>, weak_ptr<_Tp>>
    { };


  template<typename _Tp>
    struct owner_less<weak_ptr<_Tp>>
    : public _Sp_owner_less<weak_ptr<_Tp>, shared_ptr<_Tp>>
    { };




  template<typename _Tp>
    class enable_shared_from_this
    {
    protected:
      constexpr enable_shared_from_this() noexcept { }

      enable_shared_from_this(const enable_shared_from_this&) noexcept { }

      enable_shared_from_this&
      operator=(const enable_shared_from_this&) noexcept
      { return *this; }

      ~enable_shared_from_this() { }

    public:
      shared_ptr<_Tp>
      shared_from_this()
      { return shared_ptr<_Tp>(this->_M_weak_this); }

      shared_ptr<const _Tp>
      shared_from_this() const
      { return shared_ptr<const _Tp>(this->_M_weak_this); }
# 825 "/usr/include/c++/11/bits/shared_ptr.h" 3
    private:
      template<typename _Tp1>
 void
 _M_weak_assign(_Tp1* __p, const __shared_count<>& __n) const noexcept
 { _M_weak_this._M_assign(__p, __n); }


      friend const enable_shared_from_this*
      __enable_shared_from_this_base(const __shared_count<>&,
         const enable_shared_from_this* __p)
      { return __p; }

      template<typename, _Lock_policy>
 friend class __shared_ptr;

      mutable weak_ptr<_Tp> _M_weak_this;
    };
# 856 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp, typename _Alloc, typename... _Args>
    inline shared_ptr<_Tp>
    allocate_shared(const _Alloc& __a, _Args&&... __args)
    {
      return shared_ptr<_Tp>(_Sp_alloc_shared_tag<_Alloc>{__a},
        std::forward<_Args>(__args)...);
    }
# 871 "/usr/include/c++/11/bits/shared_ptr.h" 3
  template<typename _Tp, typename... _Args>
    inline shared_ptr<_Tp>
    make_shared(_Args&&... __args)
    {
      typedef typename std::remove_cv<_Tp>::type _Tp_nc;
      return std::allocate_shared<_Tp>(std::allocator<_Tp_nc>(),
           std::forward<_Args>(__args)...);
    }


  template<typename _Tp>
    struct hash<shared_ptr<_Tp>>
    : public __hash_base<size_t, shared_ptr<_Tp>>
    {
      size_t
      operator()(const shared_ptr<_Tp>& __s) const noexcept
      {
 return std::hash<typename shared_ptr<_Tp>::element_type*>()(__s.get());
      }
    };
# 916 "/usr/include/c++/11/bits/shared_ptr.h" 3

}
# 78 "/usr/include/c++/11/memory" 2 3
# 1 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 1 3
# 33 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
# 1 "/usr/include/c++/11/bits/atomic_base.h" 1 3
# 33 "/usr/include/c++/11/bits/atomic_base.h" 3
       
# 34 "/usr/include/c++/11/bits/atomic_base.h" 3



# 1 "/usr/include/c++/11/bits/atomic_lockfree_defines.h" 1 3
# 33 "/usr/include/c++/11/bits/atomic_lockfree_defines.h" 3
       
# 34 "/usr/include/c++/11/bits/atomic_lockfree_defines.h" 3
# 38 "/usr/include/c++/11/bits/atomic_base.h" 2 3
# 48 "/usr/include/c++/11/bits/atomic_base.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 78 "/usr/include/c++/11/bits/atomic_base.h" 3
  typedef enum memory_order
    {
      memory_order_relaxed,
      memory_order_consume,
      memory_order_acquire,
      memory_order_release,
      memory_order_acq_rel,
      memory_order_seq_cst
    } memory_order;


  enum __memory_order_modifier
    {
      __memory_order_mask = 0x0ffff,
      __memory_order_modifier_mask = 0xffff0000,
      __memory_order_hle_acquire = 0x10000,
      __memory_order_hle_release = 0x20000
    };

  constexpr memory_order
  operator|(memory_order __m, __memory_order_modifier __mod)
  {
    return memory_order(int(__m) | int(__mod));
  }

  constexpr memory_order
  operator&(memory_order __m, __memory_order_modifier __mod)
  {
    return memory_order(int(__m) & int(__mod));
  }


  constexpr memory_order
  __cmpexch_failure_order2(memory_order __m) noexcept
  {
    return __m == memory_order_acq_rel ? memory_order_acquire
      : __m == memory_order_release ? memory_order_relaxed : __m;
  }

  constexpr memory_order
  __cmpexch_failure_order(memory_order __m) noexcept
  {
    return memory_order(__cmpexch_failure_order2(__m & __memory_order_mask)
      | __memory_order_modifier(__m & __memory_order_modifier_mask));
  }

  inline __attribute__((__always_inline__)) void
  atomic_thread_fence(memory_order __m) noexcept
  { __atomic_thread_fence(int(__m)); }

  inline __attribute__((__always_inline__)) void
  atomic_signal_fence(memory_order __m) noexcept
  { __atomic_signal_fence(int(__m)); }


  template<typename _Tp>
    inline _Tp
    kill_dependency(_Tp __y) noexcept
    {
      _Tp __ret(__y);
      return __ret;
    }


  template<typename _IntTp>
    struct __atomic_base;
# 154 "/usr/include/c++/11/bits/atomic_base.h" 3
  template<typename _Tp>
    struct atomic;

  template<typename _Tp>
    struct atomic<_Tp*>;



    typedef bool __atomic_flag_data_type;
# 177 "/usr/include/c++/11/bits/atomic_base.h" 3
  extern "C" {

  struct __atomic_flag_base
  {
    __atomic_flag_data_type _M_i ;
  };

  }




  struct atomic_flag : public __atomic_flag_base
  {
    atomic_flag() noexcept = default;
    ~atomic_flag() noexcept = default;
    atomic_flag(const atomic_flag&) = delete;
    atomic_flag& operator=(const atomic_flag&) = delete;
    atomic_flag& operator=(const atomic_flag&) volatile = delete;


    constexpr atomic_flag(bool __i) noexcept
      : __atomic_flag_base{ _S_init(__i) }
    { }

    inline __attribute__((__always_inline__)) bool
    test_and_set(memory_order __m = memory_order_seq_cst) noexcept
    {
      return __atomic_test_and_set (&_M_i, int(__m));
    }

    inline __attribute__((__always_inline__)) bool
    test_and_set(memory_order __m = memory_order_seq_cst) volatile noexcept
    {
      return __atomic_test_and_set (&_M_i, int(__m));
    }
# 259 "/usr/include/c++/11/bits/atomic_base.h" 3
    inline __attribute__((__always_inline__)) void
    clear(memory_order __m = memory_order_seq_cst) noexcept
    {
      memory_order __b __attribute__ ((__unused__))
 = __m & __memory_order_mask;
      do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 264, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);
      do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 265, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
      do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 266, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

      __atomic_clear (&_M_i, int(__m));
    }

    inline __attribute__((__always_inline__)) void
    clear(memory_order __m = memory_order_seq_cst) volatile noexcept
    {
      memory_order __b __attribute__ ((__unused__))
 = __m & __memory_order_mask;
      do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 276, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);
      do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 277, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
      do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 278, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

      __atomic_clear (&_M_i, int(__m));
    }

  private:
    static constexpr __atomic_flag_data_type
    _S_init(bool __i)
    { return __i ? 1 : 0; }
  };
# 314 "/usr/include/c++/11/bits/atomic_base.h" 3
  template<typename _ITp>
    struct __atomic_base
    {
      using value_type = _ITp;
      using difference_type = value_type;

    private:
      typedef _ITp __int_type;

      static constexpr int _S_alignment =
 sizeof(_ITp) > alignof(_ITp) ? sizeof(_ITp) : alignof(_ITp);

      alignas(_S_alignment) __int_type _M_i ;

    public:
      __atomic_base() noexcept = default;
      ~__atomic_base() noexcept = default;
      __atomic_base(const __atomic_base&) = delete;
      __atomic_base& operator=(const __atomic_base&) = delete;
      __atomic_base& operator=(const __atomic_base&) volatile = delete;


      constexpr __atomic_base(__int_type __i) noexcept : _M_i (__i) { }

      operator __int_type() const noexcept
      { return load(); }

      operator __int_type() const volatile noexcept
      { return load(); }

      __int_type
      operator=(__int_type __i) noexcept
      {
 store(__i);
 return __i;
      }

      __int_type
      operator=(__int_type __i) volatile noexcept
      {
 store(__i);
 return __i;
      }

      __int_type
      operator++(int) noexcept
      { return fetch_add(1); }

      __int_type
      operator++(int) volatile noexcept
      { return fetch_add(1); }

      __int_type
      operator--(int) noexcept
      { return fetch_sub(1); }

      __int_type
      operator--(int) volatile noexcept
      { return fetch_sub(1); }

      __int_type
      operator++() noexcept
      { return __atomic_add_fetch(&_M_i, 1, int(memory_order_seq_cst)); }

      __int_type
      operator++() volatile noexcept
      { return __atomic_add_fetch(&_M_i, 1, int(memory_order_seq_cst)); }

      __int_type
      operator--() noexcept
      { return __atomic_sub_fetch(&_M_i, 1, int(memory_order_seq_cst)); }

      __int_type
      operator--() volatile noexcept
      { return __atomic_sub_fetch(&_M_i, 1, int(memory_order_seq_cst)); }

      __int_type
      operator+=(__int_type __i) noexcept
      { return __atomic_add_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator+=(__int_type __i) volatile noexcept
      { return __atomic_add_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator-=(__int_type __i) noexcept
      { return __atomic_sub_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator-=(__int_type __i) volatile noexcept
      { return __atomic_sub_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator&=(__int_type __i) noexcept
      { return __atomic_and_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator&=(__int_type __i) volatile noexcept
      { return __atomic_and_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator|=(__int_type __i) noexcept
      { return __atomic_or_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator|=(__int_type __i) volatile noexcept
      { return __atomic_or_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator^=(__int_type __i) noexcept
      { return __atomic_xor_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      __int_type
      operator^=(__int_type __i) volatile noexcept
      { return __atomic_xor_fetch(&_M_i, __i, int(memory_order_seq_cst)); }

      bool
      is_lock_free() const noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_i),
     reinterpret_cast<void *>(-_S_alignment));
      }

      bool
      is_lock_free() const volatile noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_i),
     reinterpret_cast<void *>(-_S_alignment));
      }

      inline __attribute__((__always_inline__)) void
      store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 451, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 452, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 453, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);

 __atomic_store_n(&_M_i, __i, int(__m));
      }

      inline __attribute__((__always_inline__)) void
      store(__int_type __i,
     memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 464, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 465, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 466, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);

 __atomic_store_n(&_M_i, __i, int(__m));
      }

      inline __attribute__((__always_inline__)) __int_type
      load(memory_order __m = memory_order_seq_cst) const noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 476, __PRETTY_FUNCTION__, "__b != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 477, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

 return __atomic_load_n(&_M_i, int(__m));
      }

      inline __attribute__((__always_inline__)) __int_type
      load(memory_order __m = memory_order_seq_cst) const volatile noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 487, __PRETTY_FUNCTION__, "__b != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 488, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

 return __atomic_load_n(&_M_i, int(__m));
      }

      inline __attribute__((__always_inline__)) __int_type
      exchange(__int_type __i,
        memory_order __m = memory_order_seq_cst) noexcept
      {
 return __atomic_exchange_n(&_M_i, __i, int(__m));
      }


      inline __attribute__((__always_inline__)) __int_type
      exchange(__int_type __i,
        memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return __atomic_exchange_n(&_M_i, __i, int(__m));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_weak(__int_type& __i1, __int_type __i2,
       memory_order __m1, memory_order __m2) noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 516, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 517, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 518, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1,
        int(__m1), int(__m2));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_weak(__int_type& __i1, __int_type __i2,
       memory_order __m1,
       memory_order __m2) volatile noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 533, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 534, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 535, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1,
        int(__m1), int(__m2));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_weak(__int_type& __i1, __int_type __i2,
       memory_order __m = memory_order_seq_cst) noexcept
      {
 return compare_exchange_weak(__i1, __i2, __m,
         __cmpexch_failure_order(__m));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_weak(__int_type& __i1, __int_type __i2,
     memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return compare_exchange_weak(__i1, __i2, __m,
         __cmpexch_failure_order(__m));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__int_type& __i1, __int_type __i2,
         memory_order __m1, memory_order __m2) noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 565, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 566, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 567, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0,
        int(__m1), int(__m2));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__int_type& __i1, __int_type __i2,
         memory_order __m1,
         memory_order __m2) volatile noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;

 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 583, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 584, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 585, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0,
        int(__m1), int(__m2));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__int_type& __i1, __int_type __i2,
         memory_order __m = memory_order_seq_cst) noexcept
      {
 return compare_exchange_strong(__i1, __i2, __m,
           __cmpexch_failure_order(__m));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__int_type& __i1, __int_type __i2,
   memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return compare_exchange_strong(__i1, __i2, __m,
           __cmpexch_failure_order(__m));
      }
# 632 "/usr/include/c++/11/bits/atomic_base.h" 3
      inline __attribute__((__always_inline__)) __int_type
      fetch_add(__int_type __i,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_add(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_add(__int_type __i,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_add(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_sub(__int_type __i,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_sub(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_sub(__int_type __i,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_sub(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_and(__int_type __i,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_and(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_and(__int_type __i,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_and(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_or(__int_type __i,
        memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_or(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_or(__int_type __i,
        memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_or(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_xor(__int_type __i,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_xor(&_M_i, __i, int(__m)); }

      inline __attribute__((__always_inline__)) __int_type
      fetch_xor(__int_type __i,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_xor(&_M_i, __i, int(__m)); }
    };



  template<typename _PTp>
    struct __atomic_base<_PTp*>
    {
    private:
      typedef _PTp* __pointer_type;

      __pointer_type _M_p ;


      constexpr ptrdiff_t
      _M_type_size(ptrdiff_t __d) const { return __d * sizeof(_PTp); }

      constexpr ptrdiff_t
      _M_type_size(ptrdiff_t __d) const volatile { return __d * sizeof(_PTp); }

    public:
      __atomic_base() noexcept = default;
      ~__atomic_base() noexcept = default;
      __atomic_base(const __atomic_base&) = delete;
      __atomic_base& operator=(const __atomic_base&) = delete;
      __atomic_base& operator=(const __atomic_base&) volatile = delete;


      constexpr __atomic_base(__pointer_type __p) noexcept : _M_p (__p) { }

      operator __pointer_type() const noexcept
      { return load(); }

      operator __pointer_type() const volatile noexcept
      { return load(); }

      __pointer_type
      operator=(__pointer_type __p) noexcept
      {
 store(__p);
 return __p;
      }

      __pointer_type
      operator=(__pointer_type __p) volatile noexcept
      {
 store(__p);
 return __p;
      }

      __pointer_type
      operator++(int) noexcept
      { return fetch_add(1); }

      __pointer_type
      operator++(int) volatile noexcept
      { return fetch_add(1); }

      __pointer_type
      operator--(int) noexcept
      { return fetch_sub(1); }

      __pointer_type
      operator--(int) volatile noexcept
      { return fetch_sub(1); }

      __pointer_type
      operator++() noexcept
      { return __atomic_add_fetch(&_M_p, _M_type_size(1),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator++() volatile noexcept
      { return __atomic_add_fetch(&_M_p, _M_type_size(1),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator--() noexcept
      { return __atomic_sub_fetch(&_M_p, _M_type_size(1),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator--() volatile noexcept
      { return __atomic_sub_fetch(&_M_p, _M_type_size(1),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator+=(ptrdiff_t __d) noexcept
      { return __atomic_add_fetch(&_M_p, _M_type_size(__d),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator+=(ptrdiff_t __d) volatile noexcept
      { return __atomic_add_fetch(&_M_p, _M_type_size(__d),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator-=(ptrdiff_t __d) noexcept
      { return __atomic_sub_fetch(&_M_p, _M_type_size(__d),
      int(memory_order_seq_cst)); }

      __pointer_type
      operator-=(ptrdiff_t __d) volatile noexcept
      { return __atomic_sub_fetch(&_M_p, _M_type_size(__d),
      int(memory_order_seq_cst)); }

      bool
      is_lock_free() const noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_p),
     reinterpret_cast<void *>(-__alignof(_M_p)));
      }

      bool
      is_lock_free() const volatile noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_p),
     reinterpret_cast<void *>(-__alignof(_M_p)));
      }

      inline __attribute__((__always_inline__)) void
      store(__pointer_type __p,
     memory_order __m = memory_order_seq_cst) noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;

 do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 809, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 810, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 811, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);

 __atomic_store_n(&_M_p, __p, int(__m));
      }

      inline __attribute__((__always_inline__)) void
      store(__pointer_type __p,
     memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_acquire), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 822, __PRETTY_FUNCTION__, "__b != memory_order_acquire"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 823, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_consume), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 824, __PRETTY_FUNCTION__, "__b != memory_order_consume"); } } while (false);

 __atomic_store_n(&_M_p, __p, int(__m));
      }

      inline __attribute__((__always_inline__)) __pointer_type
      load(memory_order __m = memory_order_seq_cst) const noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 834, __PRETTY_FUNCTION__, "__b != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 835, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

 return __atomic_load_n(&_M_p, int(__m));
      }

      inline __attribute__((__always_inline__)) __pointer_type
      load(memory_order __m = memory_order_seq_cst) const volatile noexcept
      {
 memory_order __b __attribute__ ((__unused__))
   = __m & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 845, __PRETTY_FUNCTION__, "__b != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 846, __PRETTY_FUNCTION__, "__b != memory_order_acq_rel"); } } while (false);

 return __atomic_load_n(&_M_p, int(__m));
      }

      inline __attribute__((__always_inline__)) __pointer_type
      exchange(__pointer_type __p,
        memory_order __m = memory_order_seq_cst) noexcept
      {
 return __atomic_exchange_n(&_M_p, __p, int(__m));
      }


      inline __attribute__((__always_inline__)) __pointer_type
      exchange(__pointer_type __p,
        memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return __atomic_exchange_n(&_M_p, __p, int(__m));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
         memory_order __m1,
         memory_order __m2) noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;
 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 875, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 876, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 877, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0,
        int(__m1), int(__m2));
      }

      inline __attribute__((__always_inline__)) bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
         memory_order __m1,
         memory_order __m2) volatile noexcept
      {
 memory_order __b2 __attribute__ ((__unused__))
   = __m2 & __memory_order_mask;
 memory_order __b1 __attribute__ ((__unused__))
   = __m1 & __memory_order_mask;

 do { { if (__builtin_expect(!bool(__b2 != memory_order_release), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 893, __PRETTY_FUNCTION__, "__b2 != memory_order_release"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 != memory_order_acq_rel), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 894, __PRETTY_FUNCTION__, "__b2 != memory_order_acq_rel"); } } while (false);
 do { { if (__builtin_expect(!bool(__b2 <= __b1), false)) std::__replacement_assert("/usr/include/c++/11/bits/atomic_base.h", 895, __PRETTY_FUNCTION__, "__b2 <= __b1"); } } while (false);

 return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0,
        int(__m1), int(__m2));
      }
# 926 "/usr/include/c++/11/bits/atomic_base.h" 3
      inline __attribute__((__always_inline__)) __pointer_type
      fetch_add(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_add(&_M_p, _M_type_size(__d), int(__m)); }

      inline __attribute__((__always_inline__)) __pointer_type
      fetch_add(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_add(&_M_p, _M_type_size(__d), int(__m)); }

      inline __attribute__((__always_inline__)) __pointer_type
      fetch_sub(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) noexcept
      { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), int(__m)); }

      inline __attribute__((__always_inline__)) __pointer_type
      fetch_sub(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), int(__m)); }
    };
# 1947 "/usr/include/c++/11/bits/atomic_base.h" 3

}
# 34 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 2 3

namespace std __attribute__ ((__visibility__ ("default")))
{

# 47 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  struct _Sp_locker
  {
    _Sp_locker(const _Sp_locker&) = delete;
    _Sp_locker& operator=(const _Sp_locker&) = delete;


    explicit
    _Sp_locker(const void*) noexcept;
    _Sp_locker(const void*, const void*) noexcept;
    ~_Sp_locker();

  private:
    unsigned char _M_key1;
    unsigned char _M_key2;



  };
# 74 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    atomic_is_lock_free(const __shared_ptr<_Tp, _Lp>* __p)
    {

      return __gthread_active_p() == 0;



    }

  template<typename _Tp>
    inline bool
    atomic_is_lock_free(const shared_ptr<_Tp>* __p)
    { return std::atomic_is_lock_free<_Tp, __default_lock_policy>(__p); }
# 101 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  template<typename _Tp>
    inline shared_ptr<_Tp>
    atomic_load_explicit(const shared_ptr<_Tp>* __p, memory_order)
    {
      _Sp_locker __lock{__p};
      return *__p;
    }

  template<typename _Tp>
    inline shared_ptr<_Tp>
    atomic_load(const shared_ptr<_Tp>* __p)
    { return std::atomic_load_explicit(__p, memory_order_seq_cst); }

  template<typename _Tp, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    atomic_load_explicit(const __shared_ptr<_Tp, _Lp>* __p, memory_order)
    {
      _Sp_locker __lock{__p};
      return *__p;
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    atomic_load(const __shared_ptr<_Tp, _Lp>* __p)
    { return std::atomic_load_explicit(__p, memory_order_seq_cst); }
# 137 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  template<typename _Tp>
    inline void
    atomic_store_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r,
     memory_order)
    {
      _Sp_locker __lock{__p};
      __p->swap(__r);
    }

  template<typename _Tp>
    inline void
    atomic_store(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
    { std::atomic_store_explicit(__p, std::move(__r), memory_order_seq_cst); }

  template<typename _Tp, _Lock_policy _Lp>
    inline void
    atomic_store_explicit(__shared_ptr<_Tp, _Lp>* __p,
     __shared_ptr<_Tp, _Lp> __r,
     memory_order)
    {
      _Sp_locker __lock{__p};
      __p->swap(__r);
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline void
    atomic_store(__shared_ptr<_Tp, _Lp>* __p, __shared_ptr<_Tp, _Lp> __r)
    { std::atomic_store_explicit(__p, std::move(__r), memory_order_seq_cst); }
# 174 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  template<typename _Tp>
    inline shared_ptr<_Tp>
    atomic_exchange_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r,
        memory_order)
    {
      _Sp_locker __lock{__p};
      __p->swap(__r);
      return __r;
    }

  template<typename _Tp>
    inline shared_ptr<_Tp>
    atomic_exchange(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
    {
      return std::atomic_exchange_explicit(__p, std::move(__r),
        memory_order_seq_cst);
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    atomic_exchange_explicit(__shared_ptr<_Tp, _Lp>* __p,
        __shared_ptr<_Tp, _Lp> __r,
        memory_order)
    {
      _Sp_locker __lock{__p};
      __p->swap(__r);
      return __r;
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline __shared_ptr<_Tp, _Lp>
    atomic_exchange(__shared_ptr<_Tp, _Lp>* __p, __shared_ptr<_Tp, _Lp> __r)
    {
      return std::atomic_exchange_explicit(__p, std::move(__r),
        memory_order_seq_cst);
    }
# 223 "/usr/include/c++/11/bits/shared_ptr_atomic.h" 3
  template<typename _Tp>
    bool
    atomic_compare_exchange_strong_explicit(shared_ptr<_Tp>* __p,
         shared_ptr<_Tp>* __v,
         shared_ptr<_Tp> __w,
         memory_order,
         memory_order)
    {
      shared_ptr<_Tp> __x;
      _Sp_locker __lock{__p, __v};
      owner_less<shared_ptr<_Tp>> __less;
      if (*__p == *__v && !__less(*__p, *__v) && !__less(*__v, *__p))
 {
   __x = std::move(*__p);
   *__p = std::move(__w);
   return true;
 }
      __x = std::move(*__v);
      *__v = *__p;
      return false;
    }

  template<typename _Tp>
    inline bool
    atomic_compare_exchange_strong(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
     shared_ptr<_Tp> __w)
    {
      return std::atomic_compare_exchange_strong_explicit(__p, __v,
   std::move(__w), memory_order_seq_cst, memory_order_seq_cst);
    }

  template<typename _Tp>
    inline bool
    atomic_compare_exchange_weak_explicit(shared_ptr<_Tp>* __p,
       shared_ptr<_Tp>* __v,
       shared_ptr<_Tp> __w,
       memory_order __success,
       memory_order __failure)
    {
      return std::atomic_compare_exchange_strong_explicit(__p, __v,
   std::move(__w), __success, __failure);
    }

  template<typename _Tp>
    inline bool
    atomic_compare_exchange_weak(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
     shared_ptr<_Tp> __w)
    {
      return std::atomic_compare_exchange_weak_explicit(__p, __v,
   std::move(__w), memory_order_seq_cst, memory_order_seq_cst);
    }

  template<typename _Tp, _Lock_policy _Lp>
    bool
    atomic_compare_exchange_strong_explicit(__shared_ptr<_Tp, _Lp>* __p,
         __shared_ptr<_Tp, _Lp>* __v,
         __shared_ptr<_Tp, _Lp> __w,
         memory_order,
         memory_order)
    {
      __shared_ptr<_Tp, _Lp> __x;
      _Sp_locker __lock{__p, __v};
      owner_less<__shared_ptr<_Tp, _Lp>> __less;
      if (*__p == *__v && !__less(*__p, *__v) && !__less(*__v, *__p))
 {
   __x = std::move(*__p);
   *__p = std::move(__w);
   return true;
 }
      __x = std::move(*__v);
      *__v = *__p;
      return false;
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    atomic_compare_exchange_strong(__shared_ptr<_Tp, _Lp>* __p,
       __shared_ptr<_Tp, _Lp>* __v,
       __shared_ptr<_Tp, _Lp> __w)
    {
      return std::atomic_compare_exchange_strong_explicit(__p, __v,
   std::move(__w), memory_order_seq_cst, memory_order_seq_cst);
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    atomic_compare_exchange_weak_explicit(__shared_ptr<_Tp, _Lp>* __p,
       __shared_ptr<_Tp, _Lp>* __v,
       __shared_ptr<_Tp, _Lp> __w,
       memory_order __success,
       memory_order __failure)
    {
      return std::atomic_compare_exchange_strong_explicit(__p, __v,
   std::move(__w), __success, __failure);
    }

  template<typename _Tp, _Lock_policy _Lp>
    inline bool
    atomic_compare_exchange_weak(__shared_ptr<_Tp, _Lp>* __p,
     __shared_ptr<_Tp, _Lp>* __v,
     __shared_ptr<_Tp, _Lp> __w)
    {
      return std::atomic_compare_exchange_weak_explicit(__p, __v,
   std::move(__w), memory_order_seq_cst, memory_order_seq_cst);
    }






}
# 79 "/usr/include/c++/11/memory" 2 3



# 1 "/usr/include/c++/11/backward/auto_ptr.h" 1 3
# 36 "/usr/include/c++/11/backward/auto_ptr.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 47 "/usr/include/c++/11/backward/auto_ptr.h" 3
  template<typename _Tp1>
    struct auto_ptr_ref
    {
      _Tp1* _M_ptr;

      explicit
      auto_ptr_ref(_Tp1* __p): _M_ptr(__p) { }
    } __attribute__ ((__deprecated__));

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
# 88 "/usr/include/c++/11/backward/auto_ptr.h" 3
  template<typename _Tp>
    class auto_ptr
    {
    private:
      _Tp* _M_ptr;

    public:

      typedef _Tp element_type;







      explicit
      auto_ptr(element_type* __p = 0) throw() : _M_ptr(__p) { }
# 114 "/usr/include/c++/11/backward/auto_ptr.h" 3
      auto_ptr(auto_ptr& __a) throw() : _M_ptr(__a.release()) { }
# 126 "/usr/include/c++/11/backward/auto_ptr.h" 3
      template<typename _Tp1>
        auto_ptr(auto_ptr<_Tp1>& __a) throw() : _M_ptr(__a.release()) { }
# 137 "/usr/include/c++/11/backward/auto_ptr.h" 3
      auto_ptr&
      operator=(auto_ptr& __a) throw()
      {
 reset(__a.release());
 return *this;
      }
# 154 "/usr/include/c++/11/backward/auto_ptr.h" 3
      template<typename _Tp1>
        auto_ptr&
        operator=(auto_ptr<_Tp1>& __a) throw()
        {
   reset(__a.release());
   return *this;
 }
# 172 "/usr/include/c++/11/backward/auto_ptr.h" 3
      ~auto_ptr() { delete _M_ptr; }
# 182 "/usr/include/c++/11/backward/auto_ptr.h" 3
      element_type&
      operator*() const throw()
      {
 do { { if (__builtin_expect(!bool(_M_ptr != 0), false)) std::__replacement_assert("/usr/include/c++/11/backward/auto_ptr.h", 185, __PRETTY_FUNCTION__, "_M_ptr != 0"); } } while (false);
 return *_M_ptr;
      }







      element_type*
      operator->() const throw()
      {
 do { { if (__builtin_expect(!bool(_M_ptr != 0), false)) std::__replacement_assert("/usr/include/c++/11/backward/auto_ptr.h", 198, __PRETTY_FUNCTION__, "_M_ptr != 0"); } } while (false);
 return _M_ptr;
      }
# 212 "/usr/include/c++/11/backward/auto_ptr.h" 3
      element_type*
      get() const throw() { return _M_ptr; }
# 226 "/usr/include/c++/11/backward/auto_ptr.h" 3
      element_type*
      release() throw()
      {
 element_type* __tmp = _M_ptr;
 _M_ptr = 0;
 return __tmp;
      }
# 241 "/usr/include/c++/11/backward/auto_ptr.h" 3
      void
      reset(element_type* __p = 0) throw()
      {
 if (__p != _M_ptr)
   {
     delete _M_ptr;
     _M_ptr = __p;
   }
      }
# 266 "/usr/include/c++/11/backward/auto_ptr.h" 3
      auto_ptr(auto_ptr_ref<element_type> __ref) throw()
      : _M_ptr(__ref._M_ptr) { }

      auto_ptr&
      operator=(auto_ptr_ref<element_type> __ref) throw()
      {
 if (__ref._M_ptr != this->get())
   {
     delete _M_ptr;
     _M_ptr = __ref._M_ptr;
   }
 return *this;
      }

      template<typename _Tp1>
        operator auto_ptr_ref<_Tp1>() throw()
        { return auto_ptr_ref<_Tp1>(this->release()); }

      template<typename _Tp1>
        operator auto_ptr<_Tp1>() throw()
        { return auto_ptr<_Tp1>(this->release()); }
    } __attribute__ ((__deprecated__ ("use '" "std::unique_ptr" "' instead")));



  template<>
    class auto_ptr<void>
    {
    public:
      typedef void element_type;
    } __attribute__ ((__deprecated__));


  template<_Lock_policy _Lp>
  template<typename _Tp>
    inline
    __shared_count<_Lp>::__shared_count(std::auto_ptr<_Tp>&& __r)
    : _M_pi(new _Sp_counted_ptr<_Tp*, _Lp>(__r.get()))
    { __r.release(); }

  template<typename _Tp, _Lock_policy _Lp>
  template<typename _Tp1, typename>
    inline
    __shared_ptr<_Tp, _Lp>::__shared_ptr(std::auto_ptr<_Tp1>&& __r)
    : _M_ptr(__r.get()), _M_refcount()
    {
     
      static_assert( sizeof(_Tp1) > 0, "incomplete type" );
      _Tp1* __tmp = __r.get();
      _M_refcount = __shared_count<_Lp>(std::move(__r));
      _M_enable_shared_from_this_with(__tmp);
    }

  template<typename _Tp>
  template<typename _Tp1, typename>
    inline
    shared_ptr<_Tp>::shared_ptr(std::auto_ptr<_Tp1>&& __r)
    : __shared_ptr<_Tp>(std::move(__r)) { }

  template<typename _Tp, typename _Dp>
  template<typename _Up, typename>
    inline
    unique_ptr<_Tp, _Dp>::unique_ptr(auto_ptr<_Up>&& __u) noexcept
    : _M_t(__u.release(), deleter_type()) { }


#pragma GCC diagnostic pop


}
# 83 "/usr/include/c++/11/memory" 2 3
# 91 "/usr/include/c++/11/memory" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 109 "/usr/include/c++/11/memory" 3
enum class pointer_safety { relaxed, preferred, strict };


inline void
declare_reachable(void*) { }


template <typename _Tp>
  inline _Tp*
  undeclare_reachable(_Tp* __p) { return __p; }


inline void
declare_no_pointers(char*, size_t) { }


inline void
undeclare_no_pointers(char*, size_t) { }


inline pointer_safety
get_pointer_safety() noexcept { return pointer_safety::relaxed; }



}
# 25 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2

# 1 "/usr/include/c++/11/vector" 1 3
# 58 "/usr/include/c++/11/vector" 3
       
# 59 "/usr/include/c++/11/vector" 3
# 67 "/usr/include/c++/11/vector" 3
# 1 "/usr/include/c++/11/bits/stl_vector.h" 1 3
# 77 "/usr/include/c++/11/bits/stl_vector.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{




  template<typename _Tp, typename _Alloc>
    struct _Vector_base
    {
      typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template
 rebind<_Tp>::other _Tp_alloc_type;
      typedef typename __gnu_cxx::__alloc_traits<_Tp_alloc_type>::pointer
        pointer;

      struct _Vector_impl_data
      {
 pointer _M_start;
 pointer _M_finish;
 pointer _M_end_of_storage;

 _Vector_impl_data() noexcept
 : _M_start(), _M_finish(), _M_end_of_storage()
 { }


 _Vector_impl_data(_Vector_impl_data&& __x) noexcept
 : _M_start(__x._M_start), _M_finish(__x._M_finish),
   _M_end_of_storage(__x._M_end_of_storage)
 { __x._M_start = __x._M_finish = __x._M_end_of_storage = pointer(); }


 void
 _M_copy_data(_Vector_impl_data const& __x) noexcept
 {
   _M_start = __x._M_start;
   _M_finish = __x._M_finish;
   _M_end_of_storage = __x._M_end_of_storage;
 }

 void
 _M_swap_data(_Vector_impl_data& __x) noexcept
 {


   _Vector_impl_data __tmp;
   __tmp._M_copy_data(*this);
   _M_copy_data(__x);
   __x._M_copy_data(__tmp);
 }
      };

      struct _Vector_impl
 : public _Tp_alloc_type, public _Vector_impl_data
      {
 _Vector_impl() noexcept(is_nothrow_default_constructible<_Tp_alloc_type>::value)

 : _Tp_alloc_type()
 { }

 _Vector_impl(_Tp_alloc_type const& __a) noexcept
 : _Tp_alloc_type(__a)
 { }




 _Vector_impl(_Vector_impl&& __x) noexcept
 : _Tp_alloc_type(std::move(__x)), _Vector_impl_data(std::move(__x))
 { }

 _Vector_impl(_Tp_alloc_type&& __a) noexcept
 : _Tp_alloc_type(std::move(__a))
 { }

 _Vector_impl(_Tp_alloc_type&& __a, _Vector_impl&& __rv) noexcept
 : _Tp_alloc_type(std::move(__a)), _Vector_impl_data(std::move(__rv))
 { }
# 270 "/usr/include/c++/11/bits/stl_vector.h" 3
      };

    public:
      typedef _Alloc allocator_type;

      _Tp_alloc_type&
      _M_get_Tp_allocator() noexcept
      { return this->_M_impl; }

      const _Tp_alloc_type&
      _M_get_Tp_allocator() const noexcept
      { return this->_M_impl; }

      allocator_type
      get_allocator() const noexcept
      { return allocator_type(_M_get_Tp_allocator()); }


      _Vector_base() = default;




      _Vector_base(const allocator_type& __a) noexcept
      : _M_impl(__a) { }



      _Vector_base(size_t __n)
      : _M_impl()
      { _M_create_storage(__n); }


      _Vector_base(size_t __n, const allocator_type& __a)
      : _M_impl(__a)
      { _M_create_storage(__n); }


      _Vector_base(_Vector_base&&) = default;



      _Vector_base(_Tp_alloc_type&& __a) noexcept
      : _M_impl(std::move(__a)) { }

      _Vector_base(_Vector_base&& __x, const allocator_type& __a)
      : _M_impl(__a)
      {
 if (__x.get_allocator() == __a)
   this->_M_impl._M_swap_data(__x._M_impl);
 else
   {
     size_t __n = __x._M_impl._M_finish - __x._M_impl._M_start;
     _M_create_storage(__n);
   }
      }


      _Vector_base(const allocator_type& __a, _Vector_base&& __x)
      : _M_impl(_Tp_alloc_type(__a), std::move(__x._M_impl))
      { }


      ~_Vector_base() noexcept
      {
 _M_deallocate(_M_impl._M_start,
        _M_impl._M_end_of_storage - _M_impl._M_start);
      }

    public:
      _Vector_impl _M_impl;

      pointer
      _M_allocate(size_t __n)
      {
 typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Tr;
 return __n != 0 ? _Tr::allocate(_M_impl, __n) : pointer();
      }

      void
      _M_deallocate(pointer __p, size_t __n)
      {
 typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Tr;
 if (__p)
   _Tr::deallocate(_M_impl, __p, __n);
      }

    protected:
      void
      _M_create_storage(size_t __n)
      {
 this->_M_impl._M_start = this->_M_allocate(__n);
 this->_M_impl._M_finish = this->_M_impl._M_start;
 this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
      }
    };
# 388 "/usr/include/c++/11/bits/stl_vector.h" 3
  template<typename _Tp, typename _Alloc = std::allocator<_Tp> >
    class vector : protected _Vector_base<_Tp, _Alloc>
    {
# 401 "/usr/include/c++/11/bits/stl_vector.h" 3
      static_assert(is_same<typename remove_cv<_Tp>::type, _Tp>::value,
   "std::vector must have a non-const, non-volatile value_type");

      static_assert(is_same<typename _Alloc::value_type, _Tp>::value,
   "std::vector must have the same value_type as its allocator");



      typedef _Vector_base<_Tp, _Alloc> _Base;
      typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
      typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Alloc_traits;

    public:
      typedef _Tp value_type;
      typedef typename _Base::pointer pointer;
      typedef typename _Alloc_traits::const_pointer const_pointer;
      typedef typename _Alloc_traits::reference reference;
      typedef typename _Alloc_traits::const_reference const_reference;
      typedef __gnu_cxx::__normal_iterator<pointer, vector> iterator;
      typedef __gnu_cxx::__normal_iterator<const_pointer, vector>
      const_iterator;
      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
      typedef std::reverse_iterator<iterator> reverse_iterator;
      typedef size_t size_type;
      typedef ptrdiff_t difference_type;
      typedef _Alloc allocator_type;

    private:

      static constexpr bool
      _S_nothrow_relocate(true_type)
      {
 return noexcept(std::__relocate_a(std::declval<pointer>(),
       std::declval<pointer>(),
       std::declval<pointer>(),
       std::declval<_Tp_alloc_type&>()));
      }

      static constexpr bool
      _S_nothrow_relocate(false_type)
      { return false; }

      static constexpr bool
      _S_use_relocate()
      {



 return _S_nothrow_relocate(__is_move_insertable<_Tp_alloc_type>{});
      }

      static pointer
      _S_do_relocate(pointer __first, pointer __last, pointer __result,
       _Tp_alloc_type& __alloc, true_type) noexcept
      {
 return std::__relocate_a(__first, __last, __result, __alloc);
      }

      static pointer
      _S_do_relocate(pointer, pointer, pointer __result,
       _Tp_alloc_type&, false_type) noexcept
      { return __result; }

      static pointer
      _S_relocate(pointer __first, pointer __last, pointer __result,
    _Tp_alloc_type& __alloc) noexcept
      {
 using __do_it = __bool_constant<_S_use_relocate()>;
 return _S_do_relocate(__first, __last, __result, __alloc, __do_it{});
      }


    protected:
      using _Base::_M_allocate;
      using _Base::_M_deallocate;
      using _Base::_M_impl;
      using _Base::_M_get_Tp_allocator;

    public:







      vector() = default;
# 496 "/usr/include/c++/11/bits/stl_vector.h" 3
      explicit
      vector(const allocator_type& __a) noexcept
      : _Base(__a) { }
# 509 "/usr/include/c++/11/bits/stl_vector.h" 3
      explicit
      vector(size_type __n, const allocator_type& __a = allocator_type())
      : _Base(_S_check_init_len(__n, __a), __a)
      { _M_default_initialize(__n); }
# 522 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector(size_type __n, const value_type& __value,
      const allocator_type& __a = allocator_type())
      : _Base(_S_check_init_len(__n, __a), __a)
      { _M_fill_initialize(__n, __value); }
# 553 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector(const vector& __x)
      : _Base(__x.size(),
 _Alloc_traits::_S_select_on_copy(__x._M_get_Tp_allocator()))
      {
 this->_M_impl._M_finish =
   std::__uninitialized_copy_a(__x.begin(), __x.end(),
          this->_M_impl._M_start,
          _M_get_Tp_allocator());
      }
# 572 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector(vector&&) noexcept = default;


      vector(const vector& __x, const allocator_type& __a)
      : _Base(__x.size(), __a)
      {
 this->_M_impl._M_finish =
   std::__uninitialized_copy_a(__x.begin(), __x.end(),
          this->_M_impl._M_start,
          _M_get_Tp_allocator());
      }

    private:
      vector(vector&& __rv, const allocator_type& __m, true_type) noexcept
      : _Base(__m, std::move(__rv))
      { }

      vector(vector&& __rv, const allocator_type& __m, false_type)
      : _Base(__m)
      {
 if (__rv.get_allocator() == __m)
   this->_M_impl._M_swap_data(__rv._M_impl);
 else if (!__rv.empty())
   {
     this->_M_create_storage(__rv.size());
     this->_M_impl._M_finish =
       std::__uninitialized_move_a(__rv.begin(), __rv.end(),
       this->_M_impl._M_start,
       _M_get_Tp_allocator());
     __rv.clear();
   }
      }

    public:

      vector(vector&& __rv, const allocator_type& __m)
      noexcept( noexcept(
 vector(std::declval<vector&&>(), std::declval<const allocator_type&>(),
        std::declval<typename _Alloc_traits::is_always_equal>())) )
      : vector(std::move(__rv), __m, typename _Alloc_traits::is_always_equal{})
      { }
# 625 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector(initializer_list<value_type> __l,
      const allocator_type& __a = allocator_type())
      : _Base(__a)
      {
 _M_range_initialize(__l.begin(), __l.end(),
       random_access_iterator_tag());
      }
# 651 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 vector(_InputIterator __first, _InputIterator __last,
        const allocator_type& __a = allocator_type())
 : _Base(__a)
 {
   _M_range_initialize(__first, __last,
         std::__iterator_category(__first));
 }
# 678 "/usr/include/c++/11/bits/stl_vector.h" 3
      ~vector() noexcept
      {
 std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
        _M_get_Tp_allocator());
 ;
      }
# 694 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector&
      operator=(const vector& __x);
# 708 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector&
      operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      {
 constexpr bool __move_storage =
   _Alloc_traits::_S_propagate_on_move_assign()
   || _Alloc_traits::_S_always_equal();
 _M_move_assign(std::move(__x), __bool_constant<__move_storage>());
 return *this;
      }
# 729 "/usr/include/c++/11/bits/stl_vector.h" 3
      vector&
      operator=(initializer_list<value_type> __l)
      {
 this->_M_assign_aux(__l.begin(), __l.end(),
       random_access_iterator_tag());
 return *this;
      }
# 748 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      assign(size_type __n, const value_type& __val)
      { _M_fill_assign(__n, __val); }
# 765 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 void
 assign(_InputIterator __first, _InputIterator __last)
 { _M_assign_dispatch(__first, __last, __false_type()); }
# 793 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      assign(initializer_list<value_type> __l)
      {
 this->_M_assign_aux(__l.begin(), __l.end(),
       random_access_iterator_tag());
      }



      using _Base::get_allocator;







      iterator
      begin() noexcept
      { return iterator(this->_M_impl._M_start); }






      const_iterator
      begin() const noexcept
      { return const_iterator(this->_M_impl._M_start); }






      iterator
      end() noexcept
      { return iterator(this->_M_impl._M_finish); }






      const_iterator
      end() const noexcept
      { return const_iterator(this->_M_impl._M_finish); }






      reverse_iterator
      rbegin() noexcept
      { return reverse_iterator(end()); }






      const_reverse_iterator
      rbegin() const noexcept
      { return const_reverse_iterator(end()); }






      reverse_iterator
      rend() noexcept
      { return reverse_iterator(begin()); }






      const_reverse_iterator
      rend() const noexcept
      { return const_reverse_iterator(begin()); }







      const_iterator
      cbegin() const noexcept
      { return const_iterator(this->_M_impl._M_start); }






      const_iterator
      cend() const noexcept
      { return const_iterator(this->_M_impl._M_finish); }






      const_reverse_iterator
      crbegin() const noexcept
      { return const_reverse_iterator(end()); }






      const_reverse_iterator
      crend() const noexcept
      { return const_reverse_iterator(begin()); }




      size_type
      size() const noexcept
      { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }


      size_type
      max_size() const noexcept
      { return _S_max_size(_M_get_Tp_allocator()); }
# 936 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      resize(size_type __new_size)
      {
 if (__new_size > size())
   _M_default_append(__new_size - size());
 else if (__new_size < size())
   _M_erase_at_end(this->_M_impl._M_start + __new_size);
      }
# 956 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      resize(size_type __new_size, const value_type& __x)
      {
 if (__new_size > size())
   _M_fill_insert(end(), __new_size - size(), __x);
 else if (__new_size < size())
   _M_erase_at_end(this->_M_impl._M_start + __new_size);
      }
# 988 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      shrink_to_fit()
      { _M_shrink_to_fit(); }






      size_type
      capacity() const noexcept
      { return size_type(this->_M_impl._M_end_of_storage
    - this->_M_impl._M_start); }





      bool
      empty() const noexcept
      { return begin() == end(); }
# 1027 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      reserve(size_type __n);
# 1042 "/usr/include/c++/11/bits/stl_vector.h" 3
      reference
      operator[](size_type __n) noexcept
      {
 do { { if (__builtin_expect(!bool(__n < this->size()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1045, __PRETTY_FUNCTION__, "__n < this->size()"); } } while (false);
 return *(this->_M_impl._M_start + __n);
      }
# 1060 "/usr/include/c++/11/bits/stl_vector.h" 3
      const_reference
      operator[](size_type __n) const noexcept
      {
 do { { if (__builtin_expect(!bool(__n < this->size()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1063, __PRETTY_FUNCTION__, "__n < this->size()"); } } while (false);
 return *(this->_M_impl._M_start + __n);
      }

    protected:

      void
      _M_range_check(size_type __n) const
      {
 if (__n >= this->size())
   __throw_out_of_range_fmt(("vector::_M_range_check: __n " "(which is %zu) >= this->size() " "(which is %zu)")

                            ,
       __n, this->size());
      }

    public:
# 1091 "/usr/include/c++/11/bits/stl_vector.h" 3
      reference
      at(size_type __n)
      {
 _M_range_check(__n);
 return (*this)[__n];
      }
# 1109 "/usr/include/c++/11/bits/stl_vector.h" 3
      const_reference
      at(size_type __n) const
      {
 _M_range_check(__n);
 return (*this)[__n];
      }





      reference
      front() noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1123, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return *begin();
      }





      const_reference
      front() const noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1134, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return *begin();
      }





      reference
      back() noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1145, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return *(end() - 1);
      }





      const_reference
      back() const noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1156, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 return *(end() - 1);
      }
# 1167 "/usr/include/c++/11/bits/stl_vector.h" 3
      _Tp*
      data() noexcept
      { return _M_data_ptr(this->_M_impl._M_start); }

      const _Tp*
      data() const noexcept
      { return _M_data_ptr(this->_M_impl._M_start); }
# 1186 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      push_back(const value_type& __x)
      {
 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
   {
     ;
     _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
         __x);
     ++this->_M_impl._M_finish;
     ;
   }
 else
   _M_realloc_insert(end(), __x);
      }


      void
      push_back(value_type&& __x)
      { emplace_back(std::move(__x)); }

      template<typename... _Args>



 void

 emplace_back(_Args&&... __args);
# 1224 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      pop_back() noexcept
      {
 do { { if (__builtin_expect(!bool(!this->empty()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1227, __PRETTY_FUNCTION__, "!this->empty()"); } } while (false);
 --this->_M_impl._M_finish;
 _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish);
 ;
      }
# 1246 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename... _Args>
 iterator
 emplace(const_iterator __position, _Args&&... __args)
 { return _M_emplace_aux(__position, std::forward<_Args>(__args)...); }
# 1262 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator
      insert(const_iterator __position, const value_type& __x);
# 1292 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator
      insert(const_iterator __position, value_type&& __x)
      { return _M_insert_rval(__position, std::move(__x)); }
# 1309 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator
      insert(const_iterator __position, initializer_list<value_type> __l)
      {
 auto __offset = __position - cbegin();
 _M_range_insert(begin() + __offset, __l.begin(), __l.end(),
   std::random_access_iterator_tag());
 return begin() + __offset;
      }
# 1334 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator
      insert(const_iterator __position, size_type __n, const value_type& __x)
      {
 difference_type __offset = __position - cbegin();
 _M_fill_insert(begin() + __offset, __n, __x);
 return begin() + __offset;
      }
# 1376 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 iterator
 insert(const_iterator __position, _InputIterator __first,
        _InputIterator __last)
 {
   difference_type __offset = __position - cbegin();
   _M_insert_dispatch(begin() + __offset,
        __first, __last, __false_type());
   return begin() + __offset;
 }
# 1428 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator

      erase(const_iterator __position)
      { return _M_erase(begin() + (__position - cbegin())); }
# 1455 "/usr/include/c++/11/bits/stl_vector.h" 3
      iterator

      erase(const_iterator __first, const_iterator __last)
      {
 const auto __beg = begin();
 const auto __cbeg = cbegin();
 return _M_erase(__beg + (__first - __cbeg), __beg + (__last - __cbeg));
      }
# 1479 "/usr/include/c++/11/bits/stl_vector.h" 3
      void
      swap(vector& __x) noexcept
      {

 do { { if (__builtin_expect(!bool(_Alloc_traits::propagate_on_container_swap::value || _M_get_Tp_allocator() == __x._M_get_Tp_allocator()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_vector.h", 1483, __PRETTY_FUNCTION__, "_Alloc_traits::propagate_on_container_swap::value || _M_get_Tp_allocator() == __x._M_get_Tp_allocator()"); } } while (false)
                                                          ;

 this->_M_impl._M_swap_data(__x._M_impl);
 _Alloc_traits::_S_on_swap(_M_get_Tp_allocator(),
      __x._M_get_Tp_allocator());
      }







      void
      clear() noexcept
      { _M_erase_at_end(this->_M_impl._M_start); }

    protected:




      template<typename _ForwardIterator>
 pointer
 _M_allocate_and_copy(size_type __n,
        _ForwardIterator __first, _ForwardIterator __last)
 {
   pointer __result = this->_M_allocate(__n);
   if (true)
     {
       std::__uninitialized_copy_a(__first, __last, __result,
       _M_get_Tp_allocator());
       return __result;
     }
   if (false)
     {
       _M_deallocate(__result, __n);
       ;
     }
 }
# 1556 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename _InputIterator>
 void
 _M_range_initialize(_InputIterator __first, _InputIterator __last,
       std::input_iterator_tag)
 {
   if (true) {
     for (; __first != __last; ++__first)

       emplace_back(*__first);



   } if (false) {
     clear();
     ;
   }
 }


      template<typename _ForwardIterator>
 void
 _M_range_initialize(_ForwardIterator __first, _ForwardIterator __last,
       std::forward_iterator_tag)
 {
   const size_type __n = std::distance(__first, __last);
   this->_M_impl._M_start
     = this->_M_allocate(_S_check_init_len(__n, _M_get_Tp_allocator()));
   this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
   this->_M_impl._M_finish =
     std::__uninitialized_copy_a(__first, __last,
     this->_M_impl._M_start,
     _M_get_Tp_allocator());
 }



      void
      _M_fill_initialize(size_type __n, const value_type& __value)
      {
 this->_M_impl._M_finish =
   std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
     _M_get_Tp_allocator());
      }



      void
      _M_default_initialize(size_type __n)
      {
 this->_M_impl._M_finish =
   std::__uninitialized_default_n_a(this->_M_impl._M_start, __n,
        _M_get_Tp_allocator());
      }
# 1618 "/usr/include/c++/11/bits/stl_vector.h" 3
      template<typename _Integer>
 void
 _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
 { _M_fill_assign(__n, __val); }


      template<typename _InputIterator>
 void
 _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
      __false_type)
 { _M_assign_aux(__first, __last, std::__iterator_category(__first)); }


      template<typename _InputIterator>
 void
 _M_assign_aux(_InputIterator __first, _InputIterator __last,
        std::input_iterator_tag);


      template<typename _ForwardIterator>
 void
 _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
        std::forward_iterator_tag);



      void
      _M_fill_assign(size_type __n, const value_type& __val);







      template<typename _Integer>
 void
 _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __val,
      __true_type)
 { _M_fill_insert(__pos, __n, __val); }


      template<typename _InputIterator>
 void
 _M_insert_dispatch(iterator __pos, _InputIterator __first,
      _InputIterator __last, __false_type)
 {
   _M_range_insert(__pos, __first, __last,
     std::__iterator_category(__first));
 }


      template<typename _InputIterator>
 void
 _M_range_insert(iterator __pos, _InputIterator __first,
   _InputIterator __last, std::input_iterator_tag);


      template<typename _ForwardIterator>
 void
 _M_range_insert(iterator __pos, _ForwardIterator __first,
   _ForwardIterator __last, std::forward_iterator_tag);



      void
      _M_fill_insert(iterator __pos, size_type __n, const value_type& __x);



      void
      _M_default_append(size_type __n);

      bool
      _M_shrink_to_fit();
# 1705 "/usr/include/c++/11/bits/stl_vector.h" 3
      struct _Temporary_value
      {
 template<typename... _Args>
   explicit
   _Temporary_value(vector* __vec, _Args&&... __args) : _M_this(__vec)
   {
     _Alloc_traits::construct(_M_this->_M_impl, _M_ptr(),
         std::forward<_Args>(__args)...);
   }

 ~_Temporary_value()
 { _Alloc_traits::destroy(_M_this->_M_impl, _M_ptr()); }

 value_type&
 _M_val() { return *_M_ptr(); }

      private:
 _Tp*
 _M_ptr() { return reinterpret_cast<_Tp*>(&__buf); }

 vector* _M_this;
 typename aligned_storage<sizeof(_Tp), alignof(_Tp)>::type __buf;
      };



      template<typename _Arg>
 void
 _M_insert_aux(iterator __position, _Arg&& __arg);

      template<typename... _Args>
 void
 _M_realloc_insert(iterator __position, _Args&&... __args);


      iterator
      _M_insert_rval(const_iterator __position, value_type&& __v);


      template<typename... _Args>
 iterator
 _M_emplace_aux(const_iterator __position, _Args&&... __args);


      iterator
      _M_emplace_aux(const_iterator __position, value_type&& __v)
      { return _M_insert_rval(__position, std::move(__v)); }



      size_type
      _M_check_len(size_type __n, const char* __s) const
      {
 if (max_size() - size() < __n)
   __throw_length_error((__s));

 const size_type __len = size() + (std::max)(size(), __n);
 return (__len < size() || __len > max_size()) ? max_size() : __len;
      }


      static size_type
      _S_check_init_len(size_type __n, const allocator_type& __a)
      {
 if (__n > _S_max_size(_Tp_alloc_type(__a)))
   __throw_length_error(
       ("cannot create std::vector larger than max_size()"));
 return __n;
      }

      static size_type
      _S_max_size(const _Tp_alloc_type& __a) noexcept
      {



 const size_t __diffmax
   = __gnu_cxx::__numeric_traits<ptrdiff_t>::__max / sizeof(_Tp);
 const size_t __allocmax = _Alloc_traits::max_size(__a);
 return (std::min)(__diffmax, __allocmax);
      }





      void
      _M_erase_at_end(pointer __pos) noexcept
      {
 if (size_type __n = this->_M_impl._M_finish - __pos)
   {
     std::_Destroy(__pos, this->_M_impl._M_finish,
     _M_get_Tp_allocator());
     this->_M_impl._M_finish = __pos;
     ;
   }
      }

      iterator
      _M_erase(iterator __position);

      iterator
      _M_erase(iterator __first, iterator __last);


    private:



      void
      _M_move_assign(vector&& __x, true_type) noexcept
      {
 vector __tmp(get_allocator());
 this->_M_impl._M_swap_data(__x._M_impl);
 __tmp._M_impl._M_swap_data(__x._M_impl);
 std::__alloc_on_move(_M_get_Tp_allocator(), __x._M_get_Tp_allocator());
      }



      void
      _M_move_assign(vector&& __x, false_type)
      {
 if (__x._M_get_Tp_allocator() == this->_M_get_Tp_allocator())
   _M_move_assign(std::move(__x), true_type());
 else
   {


     this->_M_assign_aux(std::make_move_iterator(__x.begin()),
           std::make_move_iterator(__x.end()),
    std::random_access_iterator_tag());
     __x.clear();
   }
      }


      template<typename _Up>
 _Up*
 _M_data_ptr(_Up* __ptr) const noexcept
 { return __ptr; }


      template<typename _Ptr>
 typename std::pointer_traits<_Ptr>::element_type*
 _M_data_ptr(_Ptr __ptr) const
 { return empty() ? nullptr : std::__to_address(__ptr); }
# 1868 "/usr/include/c++/11/bits/stl_vector.h" 3
    };
# 1890 "/usr/include/c++/11/bits/stl_vector.h" 3
  template<typename _Tp, typename _Alloc>
    inline bool
    operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return (__x.size() == __y.size()
       && std::equal(__x.begin(), __x.end(), __y.begin())); }
# 1928 "/usr/include/c++/11/bits/stl_vector.h" 3
  template<typename _Tp, typename _Alloc>
    inline bool
    operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return std::lexicographical_compare(__x.begin(), __x.end(),
       __y.begin(), __y.end()); }


  template<typename _Tp, typename _Alloc>
    inline bool
    operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return !(__x == __y); }


  template<typename _Tp, typename _Alloc>
    inline bool
    operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return __y < __x; }


  template<typename _Tp, typename _Alloc>
    inline bool
    operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return !(__y < __x); }


  template<typename _Tp, typename _Alloc>
    inline bool
    operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
    { return !(__x < __y); }



  template<typename _Tp, typename _Alloc>
    inline void
    swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y)
    noexcept(noexcept(__x.swap(__y)))
    { __x.swap(__y); }


# 1982 "/usr/include/c++/11/bits/stl_vector.h" 3

}
# 68 "/usr/include/c++/11/vector" 2 3
# 1 "/usr/include/c++/11/bits/stl_bvector.h" 1 3
# 64 "/usr/include/c++/11/bits/stl_bvector.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{



  typedef unsigned long _Bit_type;
  enum { _S_word_bit = int(8 * sizeof(_Bit_type)) };

  struct _Bit_reference
  {
    _Bit_type * _M_p;
    _Bit_type _M_mask;

    _Bit_reference(_Bit_type * __x, _Bit_type __y)
    : _M_p(__x), _M_mask(__y) { }

    _Bit_reference() noexcept : _M_p(0), _M_mask(0) { }


    _Bit_reference(const _Bit_reference&) = default;


    operator bool() const noexcept
    { return !!(*_M_p & _M_mask); }

    _Bit_reference&
    operator=(bool __x) noexcept
    {
      if (__x)
 *_M_p |= _M_mask;
      else
 *_M_p &= ~_M_mask;
      return *this;
    }

    _Bit_reference&
    operator=(const _Bit_reference& __x) noexcept
    { return *this = bool(__x); }

    bool
    operator==(const _Bit_reference& __x) const
    { return bool(*this) == bool(__x); }

    bool
    operator<(const _Bit_reference& __x) const
    { return !bool(*this) && bool(__x); }

    void
    flip() noexcept
    { *_M_p ^= _M_mask; }
  };


  inline void
  swap(_Bit_reference __x, _Bit_reference __y) noexcept
  {
    bool __tmp = __x;
    __x = __y;
    __y = __tmp;
  }

  inline void
  swap(_Bit_reference __x, bool& __y) noexcept
  {
    bool __tmp = __x;
    __x = __y;
    __y = __tmp;
  }

  inline void
  swap(bool& __x, _Bit_reference __y) noexcept
  {
    bool __tmp = __x;
    __x = __y;
    __y = __tmp;
  }


  struct _Bit_iterator_base
  : public std::iterator<std::random_access_iterator_tag, bool>
  {
    _Bit_type * _M_p;
    unsigned int _M_offset;

    _Bit_iterator_base(_Bit_type * __x, unsigned int __y)
    : _M_p(__x), _M_offset(__y) { }

    void
    _M_bump_up()
    {
      if (_M_offset++ == int(_S_word_bit) - 1)
 {
   _M_offset = 0;
   ++_M_p;
 }
    }

    void
    _M_bump_down()
    {
      if (_M_offset-- == 0)
 {
   _M_offset = int(_S_word_bit) - 1;
   --_M_p;
 }
    }

    void
    _M_incr(ptrdiff_t __i)
    {
      difference_type __n = __i + _M_offset;
      _M_p += __n / int(_S_word_bit);
      __n = __n % int(_S_word_bit);
      if (__n < 0)
 {
   __n += int(_S_word_bit);
   --_M_p;
 }
      _M_offset = static_cast<unsigned int>(__n);
    }

    friend bool
    operator==(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    { return __x._M_p == __y._M_p && __x._M_offset == __y._M_offset; }
# 199 "/usr/include/c++/11/bits/stl_bvector.h" 3
    friend bool
    operator<(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    {
      return __x._M_p < __y._M_p
     || (__x._M_p == __y._M_p && __x._M_offset < __y._M_offset);
    }

    friend bool
    operator!=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    { return !(__x == __y); }

    friend bool
    operator>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    { return __y < __x; }

    friend bool
    operator<=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    { return !(__y < __x); }

    friend bool
    operator>=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    { return !(__x < __y); }


    friend ptrdiff_t
    operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
    {
      return (int(_S_word_bit) * (__x._M_p - __y._M_p)
       + __x._M_offset - __y._M_offset);
    }
  };

  struct _Bit_iterator : public _Bit_iterator_base
  {
    typedef _Bit_reference reference;



    typedef _Bit_reference* pointer;

    typedef _Bit_iterator iterator;

    _Bit_iterator() : _Bit_iterator_base(0, 0) { }

    _Bit_iterator(_Bit_type * __x, unsigned int __y)
    : _Bit_iterator_base(__x, __y) { }

    iterator
    _M_const_cast() const
    { return *this; }

    reference
    operator*() const
    { return reference(_M_p, 1UL << _M_offset); }

    iterator&
    operator++()
    {
      _M_bump_up();
      return *this;
    }

    iterator
    operator++(int)
    {
      iterator __tmp = *this;
      _M_bump_up();
      return __tmp;
    }

    iterator&
    operator--()
    {
      _M_bump_down();
      return *this;
    }

    iterator
    operator--(int)
    {
      iterator __tmp = *this;
      _M_bump_down();
      return __tmp;
    }

    iterator&
    operator+=(difference_type __i)
    {
      _M_incr(__i);
      return *this;
    }

    iterator&
    operator-=(difference_type __i)
    {
      *this += -__i;
      return *this;
    }

    reference
    operator[](difference_type __i) const
    { return *(*this + __i); }

    friend iterator
    operator+(const iterator& __x, difference_type __n)
    {
      iterator __tmp = __x;
      __tmp += __n;
      return __tmp;
    }

    friend iterator
    operator+(difference_type __n, const iterator& __x)
    { return __x + __n; }

    friend iterator
    operator-(const iterator& __x, difference_type __n)
    {
      iterator __tmp = __x;
      __tmp -= __n;
      return __tmp;
    }
  };

  struct _Bit_const_iterator : public _Bit_iterator_base
  {
    typedef bool reference;
    typedef bool const_reference;



    typedef const bool* pointer;

    typedef _Bit_const_iterator const_iterator;

    _Bit_const_iterator() : _Bit_iterator_base(0, 0) { }

    _Bit_const_iterator(_Bit_type * __x, unsigned int __y)
    : _Bit_iterator_base(__x, __y) { }

    _Bit_const_iterator(const _Bit_iterator& __x)
    : _Bit_iterator_base(__x._M_p, __x._M_offset) { }

    _Bit_iterator
    _M_const_cast() const
    { return _Bit_iterator(_M_p, _M_offset); }

    const_reference
    operator*() const
    { return _Bit_reference(_M_p, 1UL << _M_offset); }

    const_iterator&
    operator++()
    {
      _M_bump_up();
      return *this;
    }

    const_iterator
    operator++(int)
    {
      const_iterator __tmp = *this;
      _M_bump_up();
      return __tmp;
    }

    const_iterator&
    operator--()
    {
      _M_bump_down();
      return *this;
    }

    const_iterator
    operator--(int)
    {
      const_iterator __tmp = *this;
      _M_bump_down();
      return __tmp;
    }

    const_iterator&
    operator+=(difference_type __i)
    {
      _M_incr(__i);
      return *this;
    }

    const_iterator&
    operator-=(difference_type __i)
    {
      *this += -__i;
      return *this;
    }

    const_reference
    operator[](difference_type __i) const
    { return *(*this + __i); }

    friend const_iterator
    operator+(const const_iterator& __x, difference_type __n)
    {
      const_iterator __tmp = __x;
      __tmp += __n;
      return __tmp;
    }

    friend const_iterator
    operator-(const const_iterator& __x, difference_type __n)
    {
      const_iterator __tmp = __x;
      __tmp -= __n;
      return __tmp;
    }

    friend const_iterator
    operator+(difference_type __n, const const_iterator& __x)
    { return __x + __n; }
  };

  template<typename _Alloc>
    struct _Bvector_base
    {
      typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template
        rebind<_Bit_type>::other _Bit_alloc_type;
      typedef typename __gnu_cxx::__alloc_traits<_Bit_alloc_type>
 _Bit_alloc_traits;
      typedef typename _Bit_alloc_traits::pointer _Bit_pointer;

      struct _Bvector_impl_data
      {

 _Bit_iterator _M_start;
# 440 "/usr/include/c++/11/bits/stl_bvector.h" 3
 _Bit_iterator _M_finish;
 _Bit_pointer _M_end_of_storage;

 _Bvector_impl_data() noexcept
 : _M_start(), _M_finish(), _M_end_of_storage()
 { }


 _Bvector_impl_data(const _Bvector_impl_data&) = default;
 _Bvector_impl_data&
 operator=(const _Bvector_impl_data&) = default;

 _Bvector_impl_data(_Bvector_impl_data&& __x) noexcept
 : _Bvector_impl_data(__x)
 { __x._M_reset(); }

 void
 _M_move_data(_Bvector_impl_data&& __x) noexcept
 {
   *this = __x;
   __x._M_reset();
 }


 void
 _M_reset() noexcept
 { *this = _Bvector_impl_data(); }

 void
 _M_swap_data(_Bvector_impl_data& __x) noexcept
 {


   std::swap(*this, __x);
 }
      };

      struct _Bvector_impl
 : public _Bit_alloc_type, public _Bvector_impl_data
      {
 _Bvector_impl() noexcept(is_nothrow_default_constructible<_Bit_alloc_type>::value)

 : _Bit_alloc_type()
 { }

 _Bvector_impl(const _Bit_alloc_type& __a) noexcept
 : _Bit_alloc_type(__a)
 { }




 _Bvector_impl(_Bvector_impl&& __x) noexcept
 : _Bit_alloc_type(std::move(__x)), _Bvector_impl_data(std::move(__x))
 { }

 _Bvector_impl(_Bit_alloc_type&& __a, _Bvector_impl&& __x) noexcept
 : _Bit_alloc_type(std::move(__a)), _Bvector_impl_data(std::move(__x))
 { }


 _Bit_type*
 _M_end_addr() const noexcept
 {
   if (this->_M_end_of_storage)
     return std::__addressof(this->_M_end_of_storage[-1]) + 1;
   return 0;
 }
      };

    public:
      typedef _Alloc allocator_type;

      _Bit_alloc_type&
      _M_get_Bit_allocator() noexcept
      { return this->_M_impl; }

      const _Bit_alloc_type&
      _M_get_Bit_allocator() const noexcept
      { return this->_M_impl; }

      allocator_type
      get_allocator() const noexcept
      { return allocator_type(_M_get_Bit_allocator()); }


      _Bvector_base() = default;




      _Bvector_base(const allocator_type& __a)
      : _M_impl(__a) { }


      _Bvector_base(_Bvector_base&&) = default;

      _Bvector_base(_Bvector_base&& __x, const allocator_type& __a) noexcept
      : _M_impl(_Bit_alloc_type(__a), std::move(__x._M_impl))
      { }


      ~_Bvector_base()
      { this->_M_deallocate(); }

    protected:
      _Bvector_impl _M_impl;

      _Bit_pointer
      _M_allocate(size_t __n)
      { return _Bit_alloc_traits::allocate(_M_impl, _S_nword(__n)); }

      void
      _M_deallocate()
      {
 if (_M_impl._M_start._M_p)
   {
     const size_t __n = _M_impl._M_end_addr() - _M_impl._M_start._M_p;
     _Bit_alloc_traits::deallocate(_M_impl,
       _M_impl._M_end_of_storage - __n,
       __n);
     _M_impl._M_reset();
   }
      }


      void
      _M_move_data(_Bvector_base&& __x) noexcept
      { _M_impl._M_move_data(std::move(__x._M_impl)); }


      static size_t
      _S_nword(size_t __n)
      { return (__n + int(_S_word_bit) - 1) / int(_S_word_bit); }
    };



}




namespace std __attribute__ ((__visibility__ ("default")))
{


# 607 "/usr/include/c++/11/bits/stl_bvector.h" 3
  template<typename _Alloc>
    class vector<bool, _Alloc> : protected _Bvector_base<_Alloc>
    {
      typedef _Bvector_base<_Alloc> _Base;
      typedef typename _Base::_Bit_pointer _Bit_pointer;
      typedef typename _Base::_Bit_alloc_traits _Bit_alloc_traits;


      friend struct std::hash<vector>;


    public:
      typedef bool value_type;
      typedef size_t size_type;
      typedef ptrdiff_t difference_type;
      typedef _Bit_reference reference;
      typedef bool const_reference;
      typedef _Bit_reference* pointer;
      typedef const bool* const_pointer;
      typedef _Bit_iterator iterator;
      typedef _Bit_const_iterator const_iterator;
      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
      typedef std::reverse_iterator<iterator> reverse_iterator;
      typedef _Alloc allocator_type;

      allocator_type
      get_allocator() const
      { return _Base::get_allocator(); }

    protected:
      using _Base::_M_allocate;
      using _Base::_M_deallocate;
      using _Base::_S_nword;
      using _Base::_M_get_Bit_allocator;

    public:

      vector() = default;




      explicit
      vector(const allocator_type& __a)
      : _Base(__a) { }


      explicit
      vector(size_type __n, const allocator_type& __a = allocator_type())
      : vector(__n, false, __a)
      { }

      vector(size_type __n, const bool& __value,
      const allocator_type& __a = allocator_type())





      : _Base(__a)
      {
 _M_initialize(__n);
 _M_initialize_value(__value);
      }

      vector(const vector& __x)
      : _Base(_Bit_alloc_traits::_S_select_on_copy(__x._M_get_Bit_allocator()))
      {
 _M_initialize(__x.size());
 _M_copy_aligned(__x.begin(), __x.end(), begin());
      }


      vector(vector&&) = default;

    private:
      vector(vector&& __x, const allocator_type& __a, true_type) noexcept
      : _Base(std::move(__x), __a)
      { }

      vector(vector&& __x, const allocator_type& __a, false_type)
      : _Base(__a)
      {
 if (__x.get_allocator() == __a)
   this->_M_move_data(std::move(__x));
 else
   {
     _M_initialize(__x.size());
     _M_copy_aligned(__x.begin(), __x.end(), begin());
     __x.clear();
   }
      }

    public:
      vector(vector&& __x, const allocator_type& __a)
      noexcept(_Bit_alloc_traits::_S_always_equal())
      : vector(std::move(__x), __a,
        typename _Bit_alloc_traits::is_always_equal{})
      { }

      vector(const vector& __x, const allocator_type& __a)
      : _Base(__a)
      {
 _M_initialize(__x.size());
 _M_copy_aligned(__x.begin(), __x.end(), begin());
      }

      vector(initializer_list<bool> __l,
      const allocator_type& __a = allocator_type())
      : _Base(__a)
      {
 _M_initialize_range(__l.begin(), __l.end(),
       random_access_iterator_tag());
      }



      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 vector(_InputIterator __first, _InputIterator __last,
        const allocator_type& __a = allocator_type())
 : _Base(__a)
 {
   _M_initialize_range(__first, __last,
         std::__iterator_category(__first));
 }
# 745 "/usr/include/c++/11/bits/stl_bvector.h" 3
      ~vector() noexcept { }

      vector&
      operator=(const vector& __x)
      {
 if (&__x == this)
   return *this;

 if (_Bit_alloc_traits::_S_propagate_on_copy_assign())
   {
     if (this->_M_get_Bit_allocator() != __x._M_get_Bit_allocator())
       {
  this->_M_deallocate();
  std::__alloc_on_copy(_M_get_Bit_allocator(),
         __x._M_get_Bit_allocator());
  _M_initialize(__x.size());
       }
     else
       std::__alloc_on_copy(_M_get_Bit_allocator(),
       __x._M_get_Bit_allocator());
   }

 if (__x.size() > capacity())
   {
     this->_M_deallocate();
     _M_initialize(__x.size());
   }
 this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
        begin());
 return *this;
      }


      vector&
      operator=(vector&& __x) noexcept(_Bit_alloc_traits::_S_nothrow_move())
      {
 if (_Bit_alloc_traits::_S_propagate_on_move_assign()
     || this->_M_get_Bit_allocator() == __x._M_get_Bit_allocator())
   {
     this->_M_deallocate();
     this->_M_move_data(std::move(__x));
     std::__alloc_on_move(_M_get_Bit_allocator(),
     __x._M_get_Bit_allocator());
   }
 else
   {
     if (__x.size() > capacity())
       {
  this->_M_deallocate();
  _M_initialize(__x.size());
       }
     this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
            begin());
     __x.clear();
   }
 return *this;
      }

      vector&
      operator=(initializer_list<bool> __l)
      {
 this->assign(__l.begin(), __l.end());
 return *this;
      }






      void
      assign(size_type __n, const bool& __x)
      { _M_fill_assign(__n, __x); }


      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 void
 assign(_InputIterator __first, _InputIterator __last)
 { _M_assign_aux(__first, __last, std::__iterator_category(__first)); }
# 837 "/usr/include/c++/11/bits/stl_bvector.h" 3
      void
      assign(initializer_list<bool> __l)
      { _M_assign_aux(__l.begin(), __l.end(), random_access_iterator_tag()); }


      iterator
      begin() noexcept
      { return iterator(this->_M_impl._M_start._M_p, 0); }

      const_iterator
      begin() const noexcept
      { return const_iterator(this->_M_impl._M_start._M_p, 0); }

      iterator
      end() noexcept
      { return this->_M_impl._M_finish; }

      const_iterator
      end() const noexcept
      { return this->_M_impl._M_finish; }

      reverse_iterator
      rbegin() noexcept
      { return reverse_iterator(end()); }

      const_reverse_iterator
      rbegin() const noexcept
      { return const_reverse_iterator(end()); }

      reverse_iterator
      rend() noexcept
      { return reverse_iterator(begin()); }

      const_reverse_iterator
      rend() const noexcept
      { return const_reverse_iterator(begin()); }


      const_iterator
      cbegin() const noexcept
      { return const_iterator(this->_M_impl._M_start._M_p, 0); }

      const_iterator
      cend() const noexcept
      { return this->_M_impl._M_finish; }

      const_reverse_iterator
      crbegin() const noexcept
      { return const_reverse_iterator(end()); }

      const_reverse_iterator
      crend() const noexcept
      { return const_reverse_iterator(begin()); }


      size_type
      size() const noexcept
      { return size_type(end() - begin()); }

      size_type
      max_size() const noexcept
      {
 const size_type __isize =
   __gnu_cxx::__numeric_traits<difference_type>::__max
   - int(_S_word_bit) + 1;
 const size_type __asize
   = _Bit_alloc_traits::max_size(_M_get_Bit_allocator());
 return (__asize <= __isize / int(_S_word_bit)
  ? __asize * int(_S_word_bit) : __isize);
      }

      size_type
      capacity() const noexcept
      { return size_type(const_iterator(this->_M_impl._M_end_addr(), 0)
    - begin()); }

      bool
      empty() const noexcept
      { return begin() == end(); }

      reference
      operator[](size_type __n)
      { return begin()[__n]; }

      const_reference
      operator[](size_type __n) const
      { return begin()[__n]; }

    protected:
      void
      _M_range_check(size_type __n) const
      {
 if (__n >= this->size())
   __throw_out_of_range_fmt(("vector<bool>::_M_range_check: __n " "(which is %zu) >= this->size() " "(which is %zu)")

                            ,
       __n, this->size());
      }

    public:
      reference
      at(size_type __n)
      { _M_range_check(__n); return (*this)[__n]; }

      const_reference
      at(size_type __n) const
      { _M_range_check(__n); return (*this)[__n]; }

      void
      reserve(size_type __n)
      {
 if (__n > max_size())
   __throw_length_error(("vector::reserve"));
 if (capacity() < __n)
   _M_reallocate(__n);
      }

      reference
      front()
      { return *begin(); }

      const_reference
      front() const
      { return *begin(); }

      reference
      back()
      { return *(end() - 1); }

      const_reference
      back() const
      { return *(end() - 1); }






      void
      data() noexcept { }

      void
      push_back(bool __x)
      {
 if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr())
   *this->_M_impl._M_finish++ = __x;
 else
   _M_insert_aux(end(), __x);
      }

      void
      swap(vector& __x) noexcept
      {

 do { { if (__builtin_expect(!bool(_Bit_alloc_traits::propagate_on_container_swap::value || _M_get_Bit_allocator() == __x._M_get_Bit_allocator()), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_bvector.h", 991, __PRETTY_FUNCTION__, "_Bit_alloc_traits::propagate_on_container_swap::value || _M_get_Bit_allocator() == __x._M_get_Bit_allocator()"); } } while (false)
                                                            ;

 this->_M_impl._M_swap_data(__x._M_impl);
 _Bit_alloc_traits::_S_on_swap(_M_get_Bit_allocator(),
          __x._M_get_Bit_allocator());
      }


      static void
      swap(reference __x, reference __y) noexcept
      {
 bool __tmp = __x;
 __x = __y;
 __y = __tmp;
      }

      iterator

      insert(const_iterator __position, const bool& __x = bool())



      {
 const difference_type __n = __position - begin();
 if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr()
     && __position == end())
   *this->_M_impl._M_finish++ = __x;
 else
   _M_insert_aux(__position._M_const_cast(), __x);
 return begin() + __n;
      }


      template<typename _InputIterator,
        typename = std::_RequireInputIter<_InputIterator>>
 iterator
 insert(const_iterator __position,
        _InputIterator __first, _InputIterator __last)
 {
   difference_type __offset = __position - cbegin();
   _M_insert_range(__position._M_const_cast(),
     __first, __last,
     std::__iterator_category(__first));
   return begin() + __offset;
 }
# 1050 "/usr/include/c++/11/bits/stl_bvector.h" 3
      iterator
      insert(const_iterator __position, size_type __n, const bool& __x)
      {
 difference_type __offset = __position - cbegin();
 _M_fill_insert(__position._M_const_cast(), __n, __x);
 return begin() + __offset;
      }







      iterator
      insert(const_iterator __p, initializer_list<bool> __l)
      { return this->insert(__p, __l.begin(), __l.end()); }


      void
      pop_back()
      { --this->_M_impl._M_finish; }

      iterator

      erase(const_iterator __position)



      { return _M_erase(__position._M_const_cast()); }

      iterator

      erase(const_iterator __first, const_iterator __last)



      { return _M_erase(__first._M_const_cast(), __last._M_const_cast()); }

      void
      resize(size_type __new_size, bool __x = bool())
      {
 if (__new_size < size())
   _M_erase_at_end(begin() + difference_type(__new_size));
 else
   insert(end(), __new_size - size(), __x);
      }


      void
      shrink_to_fit()
      { _M_shrink_to_fit(); }


      void
      flip() noexcept
      {
 _Bit_type * const __end = this->_M_impl._M_end_addr();
 for (_Bit_type * __p = this->_M_impl._M_start._M_p; __p != __end; ++__p)
   *__p = ~*__p;
      }

      void
      clear() noexcept
      { _M_erase_at_end(begin()); }


      template<typename... _Args>



 void

 emplace_back(_Args&&... __args)
 {
   push_back(bool(__args...));



 }

      template<typename... _Args>
 iterator
 emplace(const_iterator __pos, _Args&&... __args)
 { return insert(__pos, bool(__args...)); }


    protected:

      iterator
      _M_copy_aligned(const_iterator __first, const_iterator __last,
        iterator __result)
      {
 _Bit_type* __q = std::copy(__first._M_p, __last._M_p, __result._M_p);
 return std::copy(const_iterator(__last._M_p, 0), __last,
    iterator(__q, 0));
      }

      void
      _M_initialize(size_type __n)
      {
 if (__n)
   {
     _Bit_pointer __q = this->_M_allocate(__n);
     this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
     iterator __start = iterator(std::__addressof(*__q), 0);
     this->_M_impl._M_start = __start;
     this->_M_impl._M_finish = __start + difference_type(__n);
   }
      }

      void
      _M_initialize_value(bool __x)
      {
 if (_Bit_type* __p = this->_M_impl._M_start._M_p)
   __builtin_memset(__p, __x ? ~0 : 0,
      (this->_M_impl._M_end_addr() - __p)
      * sizeof(_Bit_type));
      }

      void
      _M_reallocate(size_type __n);


      bool
      _M_shrink_to_fit();
# 1197 "/usr/include/c++/11/bits/stl_bvector.h" 3
      template<typename _InputIterator>
 void
 _M_initialize_range(_InputIterator __first, _InputIterator __last,
       std::input_iterator_tag)
 {
   for (; __first != __last; ++__first)
     push_back(*__first);
 }

      template<typename _ForwardIterator>
 void
 _M_initialize_range(_ForwardIterator __first, _ForwardIterator __last,
       std::forward_iterator_tag)
 {
   const size_type __n = std::distance(__first, __last);
   _M_initialize(__n);
   std::copy(__first, __last, begin());
 }
# 1231 "/usr/include/c++/11/bits/stl_bvector.h" 3
      void
      _M_fill_assign(size_t __n, bool __x)
      {
 if (__n > size())
   {
     _M_initialize_value(__x);
     insert(end(), __n - size(), __x);
   }
 else
   {
     _M_erase_at_end(begin() + __n);
     _M_initialize_value(__x);
   }
      }

      template<typename _InputIterator>
 void
 _M_assign_aux(_InputIterator __first, _InputIterator __last,
        std::input_iterator_tag)
 {
   iterator __cur = begin();
   for (; __first != __last && __cur != end(); ++__cur, (void)++__first)
     *__cur = *__first;
   if (__first == __last)
     _M_erase_at_end(__cur);
   else
     insert(end(), __first, __last);
 }

      template<typename _ForwardIterator>
 void
 _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
        std::forward_iterator_tag)
 {
   const size_type __len = std::distance(__first, __last);
   if (__len < size())
     _M_erase_at_end(std::copy(__first, __last, begin()));
   else
     {
       _ForwardIterator __mid = __first;
       std::advance(__mid, size());
       std::copy(__first, __mid, begin());
       insert(end(), __mid, __last);
     }
 }
# 1295 "/usr/include/c++/11/bits/stl_bvector.h" 3
      void
      _M_fill_insert(iterator __position, size_type __n, bool __x);

      template<typename _InputIterator>
 void
 _M_insert_range(iterator __pos, _InputIterator __first,
   _InputIterator __last, std::input_iterator_tag)
 {
   for (; __first != __last; ++__first)
     {
       __pos = insert(__pos, *__first);
       ++__pos;
     }
 }

      template<typename _ForwardIterator>
 void
 _M_insert_range(iterator __position, _ForwardIterator __first,
   _ForwardIterator __last, std::forward_iterator_tag);

      void
      _M_insert_aux(iterator __position, bool __x);

      size_type
      _M_check_len(size_type __n, const char* __s) const
      {
 if (max_size() - size() < __n)
   __throw_length_error((__s));

 const size_type __len = size() + std::max(size(), __n);
 return (__len < size() || __len > max_size()) ? max_size() : __len;
      }

      void
      _M_erase_at_end(iterator __pos)
      { this->_M_impl._M_finish = __pos; }

      iterator
      _M_erase(iterator __pos);

      iterator
      _M_erase(iterator __first, iterator __last);
  };



  inline void
  __fill_bvector(std::_Bit_type * __v,
   unsigned int __first, unsigned int __last, bool __x)
  {
    using std::_Bit_type;
    using std::_S_word_bit;
    const _Bit_type __fmask = ~0ul << __first;
    const _Bit_type __lmask = ~0ul >> (_S_word_bit - __last);
    const _Bit_type __mask = __fmask & __lmask;

    if (__x)
      *__v |= __mask;
    else
      *__v &= ~__mask;
  }

  inline void
  __fill_a1(std::_Bit_iterator __first,
     std::_Bit_iterator __last, const bool& __x)
  {
    using std::_Bit_type;
    using std::_S_word_bit;
    if (__first._M_p != __last._M_p)
      {
 _Bit_type* __first_p = __first._M_p;
 if (__first._M_offset != 0)
   __fill_bvector(__first_p++, __first._M_offset, _S_word_bit, __x);

 __builtin_memset(__first_p, __x ? ~0 : 0,
    (__last._M_p - __first_p) * sizeof(_Bit_type));

 if (__last._M_offset != 0)
   __fill_bvector(__last._M_p, 0, __last._M_offset, __x);
      }
    else if (__first._M_offset != __last._M_offset)
      __fill_bvector(__first._M_p, __first._M_offset, __last._M_offset, __x);
  }




  template<typename _Alloc>
    struct hash<std::vector<bool, _Alloc>>
    : public __hash_base<size_t, std::vector<bool, _Alloc>>
    {
      size_t
      operator()(const std::vector<bool, _Alloc>&) const noexcept;
    };



}
# 69 "/usr/include/c++/11/vector" 2 3



# 1 "/usr/include/c++/11/bits/vector.tcc" 1 3
# 59 "/usr/include/c++/11/bits/vector.tcc" 3
namespace std __attribute__ ((__visibility__ ("default")))
{



  template<typename _Tp, typename _Alloc>
    void
    vector<_Tp, _Alloc>::
    reserve(size_type __n)
    {
      if (__n > this->max_size())
 __throw_length_error(("vector::reserve"));
      if (this->capacity() < __n)
 {
   const size_type __old_size = size();
   pointer __tmp;

   if (_S_use_relocate())
     {
       __tmp = this->_M_allocate(__n);
       _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish,
     __tmp, _M_get_Tp_allocator());
     }
   else

     {
       __tmp = _M_allocate_and_copy(__n,
  std::__make_move_if_noexcept_iterator(this->_M_impl._M_start),
  std::__make_move_if_noexcept_iterator(this->_M_impl._M_finish));
       std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
       _M_get_Tp_allocator());
     }
   ;
   _M_deallocate(this->_M_impl._M_start,
   this->_M_impl._M_end_of_storage
   - this->_M_impl._M_start);
   this->_M_impl._M_start = __tmp;
   this->_M_impl._M_finish = __tmp + __old_size;
   this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
 }
    }


  template<typename _Tp, typename _Alloc>
    template<typename... _Args>



      void

      vector<_Tp, _Alloc>::
      emplace_back(_Args&&... __args)
      {
 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
   {
     ;
     _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
         std::forward<_Args>(__args)...);
     ++this->_M_impl._M_finish;
     ;
   }
 else
   _M_realloc_insert(end(), std::forward<_Args>(__args)...);



      }


  template<typename _Tp, typename _Alloc>
    typename vector<_Tp, _Alloc>::iterator
    vector<_Tp, _Alloc>::

    insert(const_iterator __position, const value_type& __x)



    {
      const size_type __n = __position - begin();
      if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
 if (__position == end())
   {
     ;
     _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
         __x);
     ++this->_M_impl._M_finish;
     ;
   }
 else
   {

     const auto __pos = begin() + (__position - cbegin());


     _Temporary_value __x_copy(this, __x);
     _M_insert_aux(__pos, std::move(__x_copy._M_val()));



   }
      else

 _M_realloc_insert(begin() + (__position - cbegin()), __x);




      return iterator(this->_M_impl._M_start + __n);
    }

  template<typename _Tp, typename _Alloc>
    typename vector<_Tp, _Alloc>::iterator
    vector<_Tp, _Alloc>::
    _M_erase(iterator __position)
    {
      if (__position + 1 != end())
 std::move(__position + 1, end(), __position);
      --this->_M_impl._M_finish;
      _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish);
      ;
      return __position;
    }

  template<typename _Tp, typename _Alloc>
    typename vector<_Tp, _Alloc>::iterator
    vector<_Tp, _Alloc>::
    _M_erase(iterator __first, iterator __last)
    {
      if (__first != __last)
 {
   if (__last != end())
     std::move(__last, end(), __first);
   _M_erase_at_end(__first.base() + (end() - __last));
 }
      return __first;
    }

  template<typename _Tp, typename _Alloc>
    vector<_Tp, _Alloc>&
    vector<_Tp, _Alloc>::
    operator=(const vector<_Tp, _Alloc>& __x)
    {
      if (&__x != this)
 {
   ;

   if (_Alloc_traits::_S_propagate_on_copy_assign())
     {
       if (!_Alloc_traits::_S_always_equal()
           && _M_get_Tp_allocator() != __x._M_get_Tp_allocator())
         {

    this->clear();
    _M_deallocate(this->_M_impl._M_start,
    this->_M_impl._M_end_of_storage
    - this->_M_impl._M_start);
    this->_M_impl._M_start = nullptr;
    this->_M_impl._M_finish = nullptr;
    this->_M_impl._M_end_of_storage = nullptr;
  }
       std::__alloc_on_copy(_M_get_Tp_allocator(),
       __x._M_get_Tp_allocator());
     }

   const size_type __xlen = __x.size();
   if (__xlen > capacity())
     {
       pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(),
         __x.end());
       std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
       _M_get_Tp_allocator());
       _M_deallocate(this->_M_impl._M_start,
       this->_M_impl._M_end_of_storage
       - this->_M_impl._M_start);
       this->_M_impl._M_start = __tmp;
       this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen;
     }
   else if (size() >= __xlen)
     {
       std::_Destroy(std::copy(__x.begin(), __x.end(), begin()),
       end(), _M_get_Tp_allocator());
     }
   else
     {
       std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(),
   this->_M_impl._M_start);
       std::__uninitialized_copy_a(__x._M_impl._M_start + size(),
       __x._M_impl._M_finish,
       this->_M_impl._M_finish,
       _M_get_Tp_allocator());
     }
   this->_M_impl._M_finish = this->_M_impl._M_start + __xlen;
 }
      return *this;
    }

  template<typename _Tp, typename _Alloc>
    void
    vector<_Tp, _Alloc>::
    _M_fill_assign(size_t __n, const value_type& __val)
    {
      if (__n > capacity())
 {
   vector __tmp(__n, __val, _M_get_Tp_allocator());
   __tmp._M_impl._M_swap_data(this->_M_impl);
 }
      else if (__n > size())
 {
   std::fill(begin(), end(), __val);
   const size_type __add = __n - size();
   ;
   this->_M_impl._M_finish =
     std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
       __add, __val, _M_get_Tp_allocator());
   ;
 }
      else
        _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val));
    }

  template<typename _Tp, typename _Alloc>
    template<typename _InputIterator>
      void
      vector<_Tp, _Alloc>::
      _M_assign_aux(_InputIterator __first, _InputIterator __last,
      std::input_iterator_tag)
      {
 pointer __cur(this->_M_impl._M_start);
 for (; __first != __last && __cur != this->_M_impl._M_finish;
      ++__cur, (void)++__first)
   *__cur = *__first;
 if (__first == __last)
   _M_erase_at_end(__cur);
 else
   _M_range_insert(end(), __first, __last,
     std::__iterator_category(__first));
      }

  template<typename _Tp, typename _Alloc>
    template<typename _ForwardIterator>
      void
      vector<_Tp, _Alloc>::
      _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
      std::forward_iterator_tag)
      {
 const size_type __len = std::distance(__first, __last);

 if (__len > capacity())
   {
     _S_check_init_len(__len, _M_get_Tp_allocator());
     pointer __tmp(_M_allocate_and_copy(__len, __first, __last));
     std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
     _M_get_Tp_allocator());
     ;
     _M_deallocate(this->_M_impl._M_start,
     this->_M_impl._M_end_of_storage
     - this->_M_impl._M_start);
     this->_M_impl._M_start = __tmp;
     this->_M_impl._M_finish = this->_M_impl._M_start + __len;
     this->_M_impl._M_end_of_storage = this->_M_impl._M_finish;
   }
 else if (size() >= __len)
   _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start));
 else
   {
     _ForwardIterator __mid = __first;
     std::advance(__mid, size());
     std::copy(__first, __mid, this->_M_impl._M_start);
     const size_type __attribute__((__unused__)) __n = __len - size();
     ;
     this->_M_impl._M_finish =
       std::__uninitialized_copy_a(__mid, __last,
       this->_M_impl._M_finish,
       _M_get_Tp_allocator());
     ;
   }
      }


  template<typename _Tp, typename _Alloc>
    auto
    vector<_Tp, _Alloc>::
    _M_insert_rval(const_iterator __position, value_type&& __v) -> iterator
    {
      const auto __n = __position - cbegin();
      if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
 if (__position == cend())
   {
     ;
     _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
         std::move(__v));
     ++this->_M_impl._M_finish;
     ;
   }
 else
   _M_insert_aux(begin() + __n, std::move(__v));
      else
 _M_realloc_insert(begin() + __n, std::move(__v));

      return iterator(this->_M_impl._M_start + __n);
    }

  template<typename _Tp, typename _Alloc>
    template<typename... _Args>
      auto
      vector<_Tp, _Alloc>::
      _M_emplace_aux(const_iterator __position, _Args&&... __args)
      -> iterator
      {
 const auto __n = __position - cbegin();
 if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
   if (__position == cend())
     {
       ;
       _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
           std::forward<_Args>(__args)...);
       ++this->_M_impl._M_finish;
       ;
     }
   else
     {



       _Temporary_value __tmp(this, std::forward<_Args>(__args)...);
       _M_insert_aux(begin() + __n, std::move(__tmp._M_val()));
     }
 else
   _M_realloc_insert(begin() + __n, std::forward<_Args>(__args)...);

 return iterator(this->_M_impl._M_start + __n);
      }

  template<typename _Tp, typename _Alloc>
    template<typename _Arg>
      void
      vector<_Tp, _Alloc>::
      _M_insert_aux(iterator __position, _Arg&& __arg)






    {
      ;
      _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
          std::move(*(this->_M_impl._M_finish - 1)));
      ++this->_M_impl._M_finish;
      ;



      std::move_backward(__position.base(), this->_M_impl._M_finish - 2, this->_M_impl._M_finish - 1)

                                     ;



      *__position = std::forward<_Arg>(__arg);

    }


  template<typename _Tp, typename _Alloc>
    template<typename... _Args>
      void
      vector<_Tp, _Alloc>::
      _M_realloc_insert(iterator __position, _Args&&... __args)






    {
      const size_type __len =
 _M_check_len(size_type(1), "vector::_M_realloc_insert");
      pointer __old_start = this->_M_impl._M_start;
      pointer __old_finish = this->_M_impl._M_finish;
      const size_type __elems_before = __position - begin();
      pointer __new_start(this->_M_allocate(__len));
      pointer __new_finish(__new_start);
      if (true)
 {





   _Alloc_traits::construct(this->_M_impl,
       __new_start + __elems_before,

       std::forward<_Args>(__args)...);



   __new_finish = pointer();


   if (_S_use_relocate())
     {
       __new_finish = _S_relocate(__old_start, __position.base(),
      __new_start, _M_get_Tp_allocator());

       ++__new_finish;

       __new_finish = _S_relocate(__position.base(), __old_finish,
      __new_finish, _M_get_Tp_allocator());
     }
   else

     {
       __new_finish
  = std::__uninitialized_move_if_noexcept_a
  (__old_start, __position.base(),
   __new_start, _M_get_Tp_allocator());

       ++__new_finish;

       __new_finish
  = std::__uninitialized_move_if_noexcept_a
  (__position.base(), __old_finish,
   __new_finish, _M_get_Tp_allocator());
     }
 }
      if (false)
 {
   if (!__new_finish)
     _Alloc_traits::destroy(this->_M_impl,
       __new_start + __elems_before);
   else
     std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator());
   _M_deallocate(__new_start, __len);
   ;
 }

      if (!_S_use_relocate())

 std::_Destroy(__old_start, __old_finish, _M_get_Tp_allocator());
      ;
      _M_deallocate(__old_start,
      this->_M_impl._M_end_of_storage - __old_start);
      this->_M_impl._M_start = __new_start;
      this->_M_impl._M_finish = __new_finish;
      this->_M_impl._M_end_of_storage = __new_start + __len;
    }

  template<typename _Tp, typename _Alloc>
    void
    vector<_Tp, _Alloc>::
    _M_fill_insert(iterator __position, size_type __n, const value_type& __x)
    {
      if (__n != 0)
 {
   if (size_type(this->_M_impl._M_end_of_storage
   - this->_M_impl._M_finish) >= __n)
     {



       _Temporary_value __tmp(this, __x);
       value_type& __x_copy = __tmp._M_val();

       const size_type __elems_after = end() - __position;
       pointer __old_finish(this->_M_impl._M_finish);
       if (__elems_after > __n)
  {
    ;
    std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
           this->_M_impl._M_finish,
           this->_M_impl._M_finish,
           _M_get_Tp_allocator());
    this->_M_impl._M_finish += __n;
    ;
    std::move_backward(__position.base(), __old_finish - __n, __old_finish)
                                        ;
    std::fill(__position.base(), __position.base() + __n,
       __x_copy);
  }
       else
  {
    ;
    this->_M_impl._M_finish =
      std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
        __n - __elems_after,
        __x_copy,
        _M_get_Tp_allocator());
    ;
    std::__uninitialized_move_a(__position.base(), __old_finish,
           this->_M_impl._M_finish,
           _M_get_Tp_allocator());
    this->_M_impl._M_finish += __elems_after;
    ;
    std::fill(__position.base(), __old_finish, __x_copy);
  }
     }
   else
     {
       const size_type __len =
  _M_check_len(__n, "vector::_M_fill_insert");
       const size_type __elems_before = __position - begin();
       pointer __new_start(this->_M_allocate(__len));
       pointer __new_finish(__new_start);
       if (true)
  {

    std::__uninitialized_fill_n_a(__new_start + __elems_before,
      __n, __x,
      _M_get_Tp_allocator());
    __new_finish = pointer();

    __new_finish
      = std::__uninitialized_move_if_noexcept_a
      (this->_M_impl._M_start, __position.base(),
       __new_start, _M_get_Tp_allocator());

    __new_finish += __n;

    __new_finish
      = std::__uninitialized_move_if_noexcept_a
      (__position.base(), this->_M_impl._M_finish,
       __new_finish, _M_get_Tp_allocator());
  }
       if (false)
  {
    if (!__new_finish)
      std::_Destroy(__new_start + __elems_before,
      __new_start + __elems_before + __n,
      _M_get_Tp_allocator());
    else
      std::_Destroy(__new_start, __new_finish,
      _M_get_Tp_allocator());
    _M_deallocate(__new_start, __len);
    ;
  }
       std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
       _M_get_Tp_allocator());
       ;
       _M_deallocate(this->_M_impl._M_start,
       this->_M_impl._M_end_of_storage
       - this->_M_impl._M_start);
       this->_M_impl._M_start = __new_start;
       this->_M_impl._M_finish = __new_finish;
       this->_M_impl._M_end_of_storage = __new_start + __len;
     }
 }
    }


  template<typename _Tp, typename _Alloc>
    void
    vector<_Tp, _Alloc>::
    _M_default_append(size_type __n)
    {
      if (__n != 0)
 {
   const size_type __size = size();
   size_type __navail = size_type(this->_M_impl._M_end_of_storage
      - this->_M_impl._M_finish);

   if (__size > max_size() || __navail > max_size() - __size)
     __builtin_unreachable();

   if (__navail >= __n)
     {
       ;
       this->_M_impl._M_finish =
  std::__uninitialized_default_n_a(this->_M_impl._M_finish,
       __n, _M_get_Tp_allocator());
       ;
     }
   else
     {
       const size_type __len =
  _M_check_len(__n, "vector::_M_default_append");
       pointer __new_start(this->_M_allocate(__len));
       if (_S_use_relocate())
  {
    if (true)
      {
        std::__uninitialized_default_n_a(__new_start + __size,
         __n, _M_get_Tp_allocator());
      }
    if (false)
      {
        _M_deallocate(__new_start, __len);
        ;
      }
    _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish,
         __new_start, _M_get_Tp_allocator());
  }
       else
  {
    pointer __destroy_from = pointer();
    if (true)
      {
        std::__uninitialized_default_n_a(__new_start + __size,
         __n, _M_get_Tp_allocator());
        __destroy_from = __new_start + __size;
        std::__uninitialized_move_if_noexcept_a(
         this->_M_impl._M_start, this->_M_impl._M_finish,
         __new_start, _M_get_Tp_allocator());
      }
    if (false)
      {
        if (__destroy_from)
   std::_Destroy(__destroy_from, __destroy_from + __n,
          _M_get_Tp_allocator());
        _M_deallocate(__new_start, __len);
        ;
      }
    std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    _M_get_Tp_allocator());
  }
       ;
       _M_deallocate(this->_M_impl._M_start,
       this->_M_impl._M_end_of_storage
       - this->_M_impl._M_start);
       this->_M_impl._M_start = __new_start;
       this->_M_impl._M_finish = __new_start + __size + __n;
       this->_M_impl._M_end_of_storage = __new_start + __len;
     }
 }
    }

  template<typename _Tp, typename _Alloc>
    bool
    vector<_Tp, _Alloc>::
    _M_shrink_to_fit()
    {
      if (capacity() == size())
 return false;
      ;
      return std::__shrink_to_fit_aux<vector>::_S_do_it(*this);
    }


  template<typename _Tp, typename _Alloc>
    template<typename _InputIterator>
      void
      vector<_Tp, _Alloc>::
      _M_range_insert(iterator __pos, _InputIterator __first,
        _InputIterator __last, std::input_iterator_tag)
      {
 if (__pos == end())
   {
     for (; __first != __last; ++__first)
       insert(end(), *__first);
   }
 else if (__first != __last)
   {
     vector __tmp(__first, __last, _M_get_Tp_allocator());
     insert(__pos,
     std::make_move_iterator(__tmp.begin()),
     std::make_move_iterator(__tmp.end()));
   }
      }

  template<typename _Tp, typename _Alloc>
    template<typename _ForwardIterator>
      void
      vector<_Tp, _Alloc>::
      _M_range_insert(iterator __position, _ForwardIterator __first,
        _ForwardIterator __last, std::forward_iterator_tag)
      {
 if (__first != __last)
   {
     const size_type __n = std::distance(__first, __last);
     if (size_type(this->_M_impl._M_end_of_storage
     - this->_M_impl._M_finish) >= __n)
       {
  const size_type __elems_after = end() - __position;
  pointer __old_finish(this->_M_impl._M_finish);
  if (__elems_after > __n)
    {
      ;
      std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
      this->_M_impl._M_finish,
      this->_M_impl._M_finish,
      _M_get_Tp_allocator());
      this->_M_impl._M_finish += __n;
      ;
      std::move_backward(__position.base(), __old_finish - __n, __old_finish)
                                          ;
      std::copy(__first, __last, __position);
    }
  else
    {
      _ForwardIterator __mid = __first;
      std::advance(__mid, __elems_after);
      ;
      std::__uninitialized_copy_a(__mid, __last,
      this->_M_impl._M_finish,
      _M_get_Tp_allocator());
      this->_M_impl._M_finish += __n - __elems_after;
      ;
      std::__uninitialized_move_a(__position.base(),
      __old_finish,
      this->_M_impl._M_finish,
      _M_get_Tp_allocator());
      this->_M_impl._M_finish += __elems_after;
      ;
      std::copy(__first, __mid, __position);
    }
       }
     else
       {
  const size_type __len =
    _M_check_len(__n, "vector::_M_range_insert");
  pointer __new_start(this->_M_allocate(__len));
  pointer __new_finish(__new_start);
  if (true)
    {
      __new_finish
        = std::__uninitialized_move_if_noexcept_a
        (this->_M_impl._M_start, __position.base(),
         __new_start, _M_get_Tp_allocator());
      __new_finish
        = std::__uninitialized_copy_a(__first, __last,
          __new_finish,
          _M_get_Tp_allocator());
      __new_finish
        = std::__uninitialized_move_if_noexcept_a
        (__position.base(), this->_M_impl._M_finish,
         __new_finish, _M_get_Tp_allocator());
    }
  if (false)
    {
      std::_Destroy(__new_start, __new_finish,
      _M_get_Tp_allocator());
      _M_deallocate(__new_start, __len);
      ;
    }
  std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
         _M_get_Tp_allocator());
  ;
  _M_deallocate(this->_M_impl._M_start,
         this->_M_impl._M_end_of_storage
         - this->_M_impl._M_start);
  this->_M_impl._M_start = __new_start;
  this->_M_impl._M_finish = __new_finish;
  this->_M_impl._M_end_of_storage = __new_start + __len;
       }
   }
      }



  template<typename _Alloc>
    void
    vector<bool, _Alloc>::
    _M_reallocate(size_type __n)
    {
      _Bit_pointer __q = this->_M_allocate(__n);
      iterator __start(std::__addressof(*__q), 0);
      iterator __finish(_M_copy_aligned(begin(), end(), __start));
      this->_M_deallocate();
      this->_M_impl._M_start = __start;
      this->_M_impl._M_finish = __finish;
      this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
    }

  template<typename _Alloc>
    void
    vector<bool, _Alloc>::
    _M_fill_insert(iterator __position, size_type __n, bool __x)
    {
      if (__n == 0)
 return;
      if (capacity() - size() >= __n)
 {
   std::copy_backward(__position, end(),
        this->_M_impl._M_finish + difference_type(__n));
   std::fill(__position, __position + difference_type(__n), __x);
   this->_M_impl._M_finish += difference_type(__n);
 }
      else
 {
   const size_type __len =
     _M_check_len(__n, "vector<bool>::_M_fill_insert");
   _Bit_pointer __q = this->_M_allocate(__len);
   iterator __start(std::__addressof(*__q), 0);
   iterator __i = _M_copy_aligned(begin(), __position, __start);
   std::fill(__i, __i + difference_type(__n), __x);
   iterator __finish = std::copy(__position, end(),
     __i + difference_type(__n));
   this->_M_deallocate();
   this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
   this->_M_impl._M_start = __start;
   this->_M_impl._M_finish = __finish;
 }
    }

  template<typename _Alloc>
    template<typename _ForwardIterator>
      void
      vector<bool, _Alloc>::
      _M_insert_range(iterator __position, _ForwardIterator __first,
        _ForwardIterator __last, std::forward_iterator_tag)
      {
 if (__first != __last)
   {
     size_type __n = std::distance(__first, __last);
     if (capacity() - size() >= __n)
       {
  std::copy_backward(__position, end(),
       this->_M_impl._M_finish
       + difference_type(__n));
  std::copy(__first, __last, __position);
  this->_M_impl._M_finish += difference_type(__n);
       }
     else
       {
  const size_type __len =
    _M_check_len(__n, "vector<bool>::_M_insert_range");
  _Bit_pointer __q = this->_M_allocate(__len);
  iterator __start(std::__addressof(*__q), 0);
  iterator __i = _M_copy_aligned(begin(), __position, __start);
  __i = std::copy(__first, __last, __i);
  iterator __finish = std::copy(__position, end(), __i);
  this->_M_deallocate();
  this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
  this->_M_impl._M_start = __start;
  this->_M_impl._M_finish = __finish;
       }
   }
      }

  template<typename _Alloc>
    void
    vector<bool, _Alloc>::
    _M_insert_aux(iterator __position, bool __x)
    {
      if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr())
 {
   std::copy_backward(__position, this->_M_impl._M_finish,
        this->_M_impl._M_finish + 1);
   *__position = __x;
   ++this->_M_impl._M_finish;
 }
      else
 {
   const size_type __len =
     _M_check_len(size_type(1), "vector<bool>::_M_insert_aux");
   _Bit_pointer __q = this->_M_allocate(__len);
   iterator __start(std::__addressof(*__q), 0);
   iterator __i = _M_copy_aligned(begin(), __position, __start);
   *__i++ = __x;
   iterator __finish = std::copy(__position, end(), __i);
   this->_M_deallocate();
   this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
   this->_M_impl._M_start = __start;
   this->_M_impl._M_finish = __finish;
 }
    }

  template<typename _Alloc>
    typename vector<bool, _Alloc>::iterator
    vector<bool, _Alloc>::
    _M_erase(iterator __position)
    {
      if (__position + 1 != end())
        std::copy(__position + 1, end(), __position);
      --this->_M_impl._M_finish;
      return __position;
    }

  template<typename _Alloc>
    typename vector<bool, _Alloc>::iterator
    vector<bool, _Alloc>::
    _M_erase(iterator __first, iterator __last)
    {
      if (__first != __last)
 _M_erase_at_end(std::copy(__last, end(), __first));
      return __first;
    }


  template<typename _Alloc>
    bool
    vector<bool, _Alloc>::
    _M_shrink_to_fit()
    {
      if (capacity() - size() < int(_S_word_bit))
 return false;
      if (true)
 {
   _M_reallocate(size());
   return true;
 }
      if (false)
 { return false; }
    }




}



namespace std __attribute__ ((__visibility__ ("default")))
{


  template<typename _Alloc>
    size_t
    hash<std::vector<bool, _Alloc>>::
    operator()(const std::vector<bool, _Alloc>& __b) const noexcept
    {
      size_t __hash = 0;
      using std::_S_word_bit;
      using std::_Bit_type;

      const size_t __words = __b.size() / _S_word_bit;
      if (__words)
 {
   const size_t __clength = __words * sizeof(_Bit_type);
   __hash = std::_Hash_impl::hash(__b._M_impl._M_start._M_p, __clength);
 }

      const size_t __extrabits = __b.size() % _S_word_bit;
      if (__extrabits)
 {
   _Bit_type __hiword = *__b._M_impl._M_finish._M_p;
   __hiword &= ~((~static_cast<_Bit_type>(0)) << __extrabits);

   const size_t __clength
     = (__extrabits + 8 - 1) / 8;
   if (__words)
     __hash = std::_Hash_impl::hash(&__hiword, __clength, __hash);
   else
     __hash = std::_Hash_impl::hash(&__hiword, __clength);
 }

      return __hash;
    }


}
# 73 "/usr/include/c++/11/vector" 2 3
# 27 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2

# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h"
# 1 "/usr/include/c++/11/algorithm" 1 3
# 58 "/usr/include/c++/11/algorithm" 3
       
# 59 "/usr/include/c++/11/algorithm" 3



# 1 "/usr/include/c++/11/bits/stl_algo.h" 1 3
# 59 "/usr/include/c++/11/bits/stl_algo.h" 3
# 1 "/usr/include/c++/11/cstdlib" 1 3
# 39 "/usr/include/c++/11/cstdlib" 3
       
# 40 "/usr/include/c++/11/cstdlib" 3
# 60 "/usr/include/c++/11/bits/stl_algo.h" 2 3
# 1 "/usr/include/c++/11/bits/algorithmfwd.h" 1 3
# 33 "/usr/include/c++/11/bits/algorithmfwd.h" 3
       
# 34 "/usr/include/c++/11/bits/algorithmfwd.h" 3
# 42 "/usr/include/c++/11/bits/algorithmfwd.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 199 "/usr/include/c++/11/bits/algorithmfwd.h" 3
  template<typename _IIter, typename _Predicate>
   
    bool
    all_of(_IIter, _IIter, _Predicate);

  template<typename _IIter, typename _Predicate>
   
    bool
    any_of(_IIter, _IIter, _Predicate);


  template<typename _FIter, typename _Tp>
   
    bool
    binary_search(_FIter, _FIter, const _Tp&);

  template<typename _FIter, typename _Tp, typename _Compare>
   
    bool
    binary_search(_FIter, _FIter, const _Tp&, _Compare);
# 232 "/usr/include/c++/11/bits/algorithmfwd.h" 3
  template<typename _IIter, typename _OIter>
   
    _OIter
    copy(_IIter, _IIter, _OIter);

  template<typename _BIter1, typename _BIter2>
   
    _BIter2
    copy_backward(_BIter1, _BIter1, _BIter2);


  template<typename _IIter, typename _OIter, typename _Predicate>
   
    _OIter
    copy_if(_IIter, _IIter, _OIter, _Predicate);

  template<typename _IIter, typename _Size, typename _OIter>
   
    _OIter
    copy_n(_IIter, _Size, _OIter);





  template<typename _FIter, typename _Tp>
   
    pair<_FIter, _FIter>
    equal_range(_FIter, _FIter, const _Tp&);

  template<typename _FIter, typename _Tp, typename _Compare>
   
    pair<_FIter, _FIter>
    equal_range(_FIter, _FIter, const _Tp&, _Compare);

  template<typename _FIter, typename _Tp>
   
    void
    fill(_FIter, _FIter, const _Tp&);

  template<typename _OIter, typename _Size, typename _Tp>
   
    _OIter
    fill_n(_OIter, _Size, const _Tp&);



  template<typename _FIter1, typename _FIter2>
   
    _FIter1
    find_end(_FIter1, _FIter1, _FIter2, _FIter2);

  template<typename _FIter1, typename _FIter2, typename _BinaryPredicate>
   
    _FIter1
    find_end(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate);





  template<typename _IIter, typename _Predicate>
   
    _IIter
    find_if_not(_IIter, _IIter, _Predicate);






  template<typename _IIter1, typename _IIter2>
   
    bool
    includes(_IIter1, _IIter1, _IIter2, _IIter2);

  template<typename _IIter1, typename _IIter2, typename _Compare>
   
    bool
    includes(_IIter1, _IIter1, _IIter2, _IIter2, _Compare);

  template<typename _BIter>
    void
    inplace_merge(_BIter, _BIter, _BIter);

  template<typename _BIter, typename _Compare>
    void
    inplace_merge(_BIter, _BIter, _BIter, _Compare);


  template<typename _RAIter>
   
    bool
    is_heap(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    bool
    is_heap(_RAIter, _RAIter, _Compare);

  template<typename _RAIter>
   
    _RAIter
    is_heap_until(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    _RAIter
    is_heap_until(_RAIter, _RAIter, _Compare);

  template<typename _IIter, typename _Predicate>
   
    bool
    is_partitioned(_IIter, _IIter, _Predicate);

  template<typename _FIter1, typename _FIter2>
   
    bool
    is_permutation(_FIter1, _FIter1, _FIter2);

  template<typename _FIter1, typename _FIter2,
    typename _BinaryPredicate>
   
    bool
    is_permutation(_FIter1, _FIter1, _FIter2, _BinaryPredicate);

  template<typename _FIter>
   
    bool
    is_sorted(_FIter, _FIter);

  template<typename _FIter, typename _Compare>
   
    bool
    is_sorted(_FIter, _FIter, _Compare);

  template<typename _FIter>
   
    _FIter
    is_sorted_until(_FIter, _FIter);

  template<typename _FIter, typename _Compare>
   
    _FIter
    is_sorted_until(_FIter, _FIter, _Compare);


  template<typename _FIter1, typename _FIter2>
   
    void
    iter_swap(_FIter1, _FIter2);

  template<typename _FIter, typename _Tp>
   
    _FIter
    lower_bound(_FIter, _FIter, const _Tp&);

  template<typename _FIter, typename _Tp, typename _Compare>
   
    _FIter
    lower_bound(_FIter, _FIter, const _Tp&, _Compare);

  template<typename _RAIter>
   
    void
    make_heap(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    make_heap(_RAIter, _RAIter, _Compare);

  template<typename _Tp>
   
    const _Tp&
    max(const _Tp&, const _Tp&);

  template<typename _Tp, typename _Compare>
   
    const _Tp&
    max(const _Tp&, const _Tp&, _Compare);




  template<typename _Tp>
   
    const _Tp&
    min(const _Tp&, const _Tp&);

  template<typename _Tp, typename _Compare>
   
    const _Tp&
    min(const _Tp&, const _Tp&, _Compare);




  template<typename _Tp>
   
    pair<const _Tp&, const _Tp&>
    minmax(const _Tp&, const _Tp&);

  template<typename _Tp, typename _Compare>
   
    pair<const _Tp&, const _Tp&>
    minmax(const _Tp&, const _Tp&, _Compare);

  template<typename _FIter>
   
    pair<_FIter, _FIter>
    minmax_element(_FIter, _FIter);

  template<typename _FIter, typename _Compare>
   
    pair<_FIter, _FIter>
    minmax_element(_FIter, _FIter, _Compare);

  template<typename _Tp>
   
    _Tp
    min(initializer_list<_Tp>);

  template<typename _Tp, typename _Compare>
   
    _Tp
    min(initializer_list<_Tp>, _Compare);

  template<typename _Tp>
   
    _Tp
    max(initializer_list<_Tp>);

  template<typename _Tp, typename _Compare>
   
    _Tp
    max(initializer_list<_Tp>, _Compare);

  template<typename _Tp>
   
    pair<_Tp, _Tp>
    minmax(initializer_list<_Tp>);

  template<typename _Tp, typename _Compare>
   
    pair<_Tp, _Tp>
    minmax(initializer_list<_Tp>, _Compare);




  template<typename _BIter>
   
    bool
    next_permutation(_BIter, _BIter);

  template<typename _BIter, typename _Compare>
   
    bool
    next_permutation(_BIter, _BIter, _Compare);


  template<typename _IIter, typename _Predicate>
   
    bool
    none_of(_IIter, _IIter, _Predicate);





  template<typename _IIter, typename _RAIter>
   
    _RAIter
    partial_sort_copy(_IIter, _IIter, _RAIter, _RAIter);

  template<typename _IIter, typename _RAIter, typename _Compare>
   
    _RAIter
    partial_sort_copy(_IIter, _IIter, _RAIter, _RAIter, _Compare);




  template<typename _IIter, typename _OIter1,
    typename _OIter2, typename _Predicate>
   
    pair<_OIter1, _OIter2>
    partition_copy(_IIter, _IIter, _OIter1, _OIter2, _Predicate);

  template<typename _FIter, typename _Predicate>
   
    _FIter
    partition_point(_FIter, _FIter, _Predicate);


  template<typename _RAIter>
   
    void
    pop_heap(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    pop_heap(_RAIter, _RAIter, _Compare);

  template<typename _BIter>
   
    bool
    prev_permutation(_BIter, _BIter);

  template<typename _BIter, typename _Compare>
   
    bool
    prev_permutation(_BIter, _BIter, _Compare);

  template<typename _RAIter>
   
    void
    push_heap(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    push_heap(_RAIter, _RAIter, _Compare);



  template<typename _FIter, typename _Tp>
   
    _FIter
    remove(_FIter, _FIter, const _Tp&);

  template<typename _FIter, typename _Predicate>
   
    _FIter
    remove_if(_FIter, _FIter, _Predicate);

  template<typename _IIter, typename _OIter, typename _Tp>
   
    _OIter
    remove_copy(_IIter, _IIter, _OIter, const _Tp&);

  template<typename _IIter, typename _OIter, typename _Predicate>
   
    _OIter
    remove_copy_if(_IIter, _IIter, _OIter, _Predicate);



  template<typename _IIter, typename _OIter, typename _Tp>
   
    _OIter
    replace_copy(_IIter, _IIter, _OIter, const _Tp&, const _Tp&);

  template<typename _Iter, typename _OIter, typename _Predicate, typename _Tp>
   
    _OIter
    replace_copy_if(_Iter, _Iter, _OIter, _Predicate, const _Tp&);



  template<typename _BIter>
   
    void
    reverse(_BIter, _BIter);

  template<typename _BIter, typename _OIter>
   
    _OIter
    reverse_copy(_BIter, _BIter, _OIter);

  inline namespace _V2
  {
    template<typename _FIter>
     
      _FIter
      rotate(_FIter, _FIter, _FIter);
  }

  template<typename _FIter, typename _OIter>
   
    _OIter
    rotate_copy(_FIter, _FIter, _FIter, _OIter);
# 625 "/usr/include/c++/11/bits/algorithmfwd.h" 3
  template<typename _RAIter, typename _UGenerator>
    void
    shuffle(_RAIter, _RAIter, _UGenerator&&);


  template<typename _RAIter>
   
    void
    sort_heap(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    sort_heap(_RAIter, _RAIter, _Compare);

  template<typename _BIter, typename _Predicate>
    _BIter
    stable_partition(_BIter, _BIter, _Predicate);
# 658 "/usr/include/c++/11/bits/algorithmfwd.h" 3
  template<typename _FIter1, typename _FIter2>
   
    _FIter2
    swap_ranges(_FIter1, _FIter1, _FIter2);



  template<typename _FIter>
   
    _FIter
    unique(_FIter, _FIter);

  template<typename _FIter, typename _BinaryPredicate>
   
    _FIter
    unique(_FIter, _FIter, _BinaryPredicate);



  template<typename _FIter, typename _Tp>
   
    _FIter
    upper_bound(_FIter, _FIter, const _Tp&);

  template<typename _FIter, typename _Tp, typename _Compare>
   
    _FIter
    upper_bound(_FIter, _FIter, const _Tp&, _Compare);



  template<typename _FIter>
   
    _FIter
    adjacent_find(_FIter, _FIter);

  template<typename _FIter, typename _BinaryPredicate>
   
    _FIter
    adjacent_find(_FIter, _FIter, _BinaryPredicate);

  template<typename _IIter, typename _Tp>
   
    typename iterator_traits<_IIter>::difference_type
    count(_IIter, _IIter, const _Tp&);

  template<typename _IIter, typename _Predicate>
   
    typename iterator_traits<_IIter>::difference_type
    count_if(_IIter, _IIter, _Predicate);

  template<typename _IIter1, typename _IIter2>
   
    bool
    equal(_IIter1, _IIter1, _IIter2);

  template<typename _IIter1, typename _IIter2, typename _BinaryPredicate>
   
    bool
    equal(_IIter1, _IIter1, _IIter2, _BinaryPredicate);

  template<typename _IIter, typename _Tp>
   
    _IIter
    find(_IIter, _IIter, const _Tp&);

  template<typename _FIter1, typename _FIter2>
   
    _FIter1
    find_first_of(_FIter1, _FIter1, _FIter2, _FIter2);

  template<typename _FIter1, typename _FIter2, typename _BinaryPredicate>
   
    _FIter1
    find_first_of(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate);

  template<typename _IIter, typename _Predicate>
   
    _IIter
    find_if(_IIter, _IIter, _Predicate);

  template<typename _IIter, typename _Funct>
   
    _Funct
    for_each(_IIter, _IIter, _Funct);

  template<typename _FIter, typename _Generator>
   
    void
    generate(_FIter, _FIter, _Generator);

  template<typename _OIter, typename _Size, typename _Generator>
   
    _OIter
    generate_n(_OIter, _Size, _Generator);

  template<typename _IIter1, typename _IIter2>
   
    bool
    lexicographical_compare(_IIter1, _IIter1, _IIter2, _IIter2);

  template<typename _IIter1, typename _IIter2, typename _Compare>
   
    bool
    lexicographical_compare(_IIter1, _IIter1, _IIter2, _IIter2, _Compare);

  template<typename _FIter>
   
    _FIter
    max_element(_FIter, _FIter);

  template<typename _FIter, typename _Compare>
   
    _FIter
    max_element(_FIter, _FIter, _Compare);

  template<typename _IIter1, typename _IIter2, typename _OIter>
   
    _OIter
    merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _Compare>
   
    _OIter
    merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare);

  template<typename _FIter>
   
    _FIter
    min_element(_FIter, _FIter);

  template<typename _FIter, typename _Compare>
   
    _FIter
    min_element(_FIter, _FIter, _Compare);

  template<typename _IIter1, typename _IIter2>
   
    pair<_IIter1, _IIter2>
    mismatch(_IIter1, _IIter1, _IIter2);

  template<typename _IIter1, typename _IIter2, typename _BinaryPredicate>
   
    pair<_IIter1, _IIter2>
    mismatch(_IIter1, _IIter1, _IIter2, _BinaryPredicate);

  template<typename _RAIter>
   
    void
    nth_element(_RAIter, _RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    nth_element(_RAIter, _RAIter, _RAIter, _Compare);

  template<typename _RAIter>
   
    void
    partial_sort(_RAIter, _RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    partial_sort(_RAIter, _RAIter, _RAIter, _Compare);

  template<typename _BIter, typename _Predicate>
   
    _BIter
    partition(_BIter, _BIter, _Predicate);

  template<typename _RAIter>
    void
    random_shuffle(_RAIter, _RAIter);

  template<typename _RAIter, typename _Generator>
    void
    random_shuffle(_RAIter, _RAIter,

     _Generator&&);




  template<typename _FIter, typename _Tp>
   
    void
    replace(_FIter, _FIter, const _Tp&, const _Tp&);

  template<typename _FIter, typename _Predicate, typename _Tp>
   
    void
    replace_if(_FIter, _FIter, _Predicate, const _Tp&);

  template<typename _FIter1, typename _FIter2>
   
    _FIter1
    search(_FIter1, _FIter1, _FIter2, _FIter2);

  template<typename _FIter1, typename _FIter2, typename _BinaryPredicate>
   
    _FIter1
    search(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate);

  template<typename _FIter, typename _Size, typename _Tp>
   
    _FIter
    search_n(_FIter, _FIter, _Size, const _Tp&);

  template<typename _FIter, typename _Size, typename _Tp,
    typename _BinaryPredicate>
   
    _FIter
    search_n(_FIter, _FIter, _Size, const _Tp&, _BinaryPredicate);

  template<typename _IIter1, typename _IIter2, typename _OIter>
   
    _OIter
    set_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _Compare>
   
    _OIter
    set_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare);

  template<typename _IIter1, typename _IIter2, typename _OIter>
   
    _OIter
    set_intersection(_IIter1, _IIter1, _IIter2, _IIter2, _OIter);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _Compare>
   
    _OIter
    set_intersection(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare);

  template<typename _IIter1, typename _IIter2, typename _OIter>
   
    _OIter
    set_symmetric_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _Compare>
   
    _OIter
    set_symmetric_difference(_IIter1, _IIter1, _IIter2, _IIter2,
        _OIter, _Compare);

  template<typename _IIter1, typename _IIter2, typename _OIter>
   
    _OIter
    set_union(_IIter1, _IIter1, _IIter2, _IIter2, _OIter);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _Compare>
   
    _OIter
    set_union(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare);

  template<typename _RAIter>
   
    void
    sort(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
   
    void
    sort(_RAIter, _RAIter, _Compare);

  template<typename _RAIter>
    void
    stable_sort(_RAIter, _RAIter);

  template<typename _RAIter, typename _Compare>
    void
    stable_sort(_RAIter, _RAIter, _Compare);

  template<typename _IIter, typename _OIter, typename _UnaryOperation>
   
    _OIter
    transform(_IIter, _IIter, _OIter, _UnaryOperation);

  template<typename _IIter1, typename _IIter2, typename _OIter,
    typename _BinaryOperation>
   
    _OIter
    transform(_IIter1, _IIter1, _IIter2, _OIter, _BinaryOperation);

  template<typename _IIter, typename _OIter>
   
    _OIter
    unique_copy(_IIter, _IIter, _OIter);

  template<typename _IIter, typename _OIter, typename _BinaryPredicate>
   
    _OIter
    unique_copy(_IIter, _IIter, _OIter, _BinaryPredicate);



}
# 61 "/usr/include/c++/11/bits/stl_algo.h" 2 3
# 1 "/usr/include/c++/11/bits/stl_heap.h" 1 3
# 62 "/usr/include/c++/11/bits/stl_heap.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{







  template<typename _RandomAccessIterator, typename _Distance,
    typename _Compare>
   
    _Distance
    __is_heap_until(_RandomAccessIterator __first, _Distance __n,
      _Compare& __comp)
    {
      _Distance __parent = 0;
      for (_Distance __child = 1; __child < __n; ++__child)
 {
   if (__comp(__first + __parent, __first + __child))
     return __child;
   if ((__child & 1) == 0)
     ++__parent;
 }
      return __n;
    }



  template<typename _RandomAccessIterator, typename _Distance>
   
    inline bool
    __is_heap(_RandomAccessIterator __first, _Distance __n)
    {
      __gnu_cxx::__ops::_Iter_less_iter __comp;
      return std::__is_heap_until(__first, __n, __comp) == __n;
    }

  template<typename _RandomAccessIterator, typename _Compare,
    typename _Distance>
   
    inline bool
    __is_heap(_RandomAccessIterator __first, _Compare __comp, _Distance __n)
    {
      typedef __decltype(__comp) _Cmp;
      __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
      return std::__is_heap_until(__first, __n, __cmp) == __n;
    }

  template<typename _RandomAccessIterator>
   
    inline bool
    __is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    { return std::__is_heap(__first, std::distance(__first, __last)); }

  template<typename _RandomAccessIterator, typename _Compare>
   
    inline bool
    __is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
       _Compare __comp)
    {
      return std::__is_heap(__first, std::move(__comp),
       std::distance(__first, __last));
    }




  template<typename _RandomAccessIterator, typename _Distance, typename _Tp,
    typename _Compare>
   
    void
    __push_heap(_RandomAccessIterator __first,
  _Distance __holeIndex, _Distance __topIndex, _Tp __value,
  _Compare& __comp)
    {
      _Distance __parent = (__holeIndex - 1) / 2;
      while (__holeIndex > __topIndex && __comp(__first + __parent, __value))
 {
   *(__first + __holeIndex) = std::move(*(__first + __parent));
   __holeIndex = __parent;
   __parent = (__holeIndex - 1) / 2;
 }
      *(__first + __holeIndex) = std::move(__value);
    }
# 158 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
   _ValueType;
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
   _DistanceType;


     

     
      ;
      ;
      ;

      __gnu_cxx::__ops::_Iter_less_val __comp;
      _ValueType __value = std::move(*(__last - 1));
      std::__push_heap(__first, _DistanceType((__last - __first) - 1),
         _DistanceType(0), std::move(__value), __comp);
    }
# 194 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
       _Compare __comp)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
   _ValueType;
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
   _DistanceType;


     

      ;
      ;
      ;

      __decltype(__gnu_cxx::__ops::__iter_comp_val(std::move(__comp)))
 __cmp(std::move(__comp));
      _ValueType __value = std::move(*(__last - 1));
      std::__push_heap(__first, _DistanceType((__last - __first) - 1),
         _DistanceType(0), std::move(__value), __cmp);
    }

  template<typename _RandomAccessIterator, typename _Distance,
    typename _Tp, typename _Compare>
   
    void
    __adjust_heap(_RandomAccessIterator __first, _Distance __holeIndex,
    _Distance __len, _Tp __value, _Compare __comp)
    {
      const _Distance __topIndex = __holeIndex;
      _Distance __secondChild = __holeIndex;
      while (__secondChild < (__len - 1) / 2)
 {
   __secondChild = 2 * (__secondChild + 1);
   if (__comp(__first + __secondChild,
       __first + (__secondChild - 1)))
     __secondChild--;
   *(__first + __holeIndex) = std::move(*(__first + __secondChild));
   __holeIndex = __secondChild;
 }
      if ((__len & 1) == 0 && __secondChild == (__len - 2) / 2)
 {
   __secondChild = 2 * (__secondChild + 1);
   *(__first + __holeIndex) = std::move(*(__first + (__secondChild - 1)))
                                  ;
   __holeIndex = __secondChild - 1;
 }
      __decltype(__gnu_cxx::__ops::__iter_comp_val(std::move(__comp)))
 __cmp(std::move(__comp));
      std::__push_heap(__first, __holeIndex, __topIndex,
         std::move(__value), __cmp);
    }

  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    __pop_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
        _RandomAccessIterator __result, _Compare& __comp)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
 _ValueType;
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
 _DistanceType;

      _ValueType __value = std::move(*__result);
      *__result = std::move(*__first);
      std::__adjust_heap(__first, _DistanceType(0),
    _DistanceType(__last - __first),
    std::move(__value), __comp);
    }
# 279 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    pop_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      do { { if (__builtin_expect(!bool(__first != __last), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_heap.h", 289, __PRETTY_FUNCTION__, "__first != __last"); } } while (false);
      ;
      ;
      ;

      if (__last - __first > 1)
 {
   --__last;
   __gnu_cxx::__ops::_Iter_less_iter __comp;
   std::__pop_heap(__first, __last, __last, __comp);
 }
    }
# 313 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    pop_heap(_RandomAccessIterator __first,
      _RandomAccessIterator __last, _Compare __comp)
    {

     

      ;
      ;
      do { { if (__builtin_expect(!bool(__first != __last), false)) std::__replacement_assert("/usr/include/c++/11/bits/stl_heap.h", 324, __PRETTY_FUNCTION__, "__first != __last"); } } while (false);
      ;

      if (__last - __first > 1)
 {
   typedef __decltype(__comp) _Cmp;
   __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
   --__last;
   std::__pop_heap(__first, __last, __last, __cmp);
 }
    }

  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
  _Compare& __comp)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
   _ValueType;
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
   _DistanceType;

      if (__last - __first < 2)
 return;

      const _DistanceType __len = __last - __first;
      _DistanceType __parent = (__len - 2) / 2;
      while (true)
 {
   _ValueType __value = std::move(*(__first + __parent));
   std::__adjust_heap(__first, __parent, __len, std::move(__value),
        __comp);
   if (__parent == 0)
     return;
   __parent--;
 }
    }
# 371 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      ;
      ;

      __gnu_cxx::__ops::_Iter_less_iter __comp;
      std::__make_heap(__first, __last, __comp);
    }
# 398 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
       _Compare __comp)
    {

     

      ;
      ;

      typedef __decltype(__comp) _Cmp;
      __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
      std::__make_heap(__first, __last, __cmp);
    }

  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
  _Compare& __comp)
    {
      while (__last - __first > 1)
 {
   --__last;
   std::__pop_heap(__first, __last, __last, __comp);
 }
    }
# 436 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      ;
      ;
      ;

      __gnu_cxx::__ops::_Iter_less_iter __comp;
      std::__sort_heap(__first, __last, __comp);
    }
# 464 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
       _Compare __comp)
    {

     

      ;
      ;
      ;

      typedef __decltype(__comp) _Cmp;
      __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
      std::__sort_heap(__first, __last, __cmp);
    }
# 493 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline _RandomAccessIterator
    is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      ;
      ;

      __gnu_cxx::__ops::_Iter_less_iter __comp;
      return __first +
 std::__is_heap_until(__first, std::distance(__first, __last), __comp);
    }
# 522 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline _RandomAccessIterator
    is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last,
    _Compare __comp)
    {

     

      ;
      ;

      typedef __decltype(__comp) _Cmp;
      __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
      return __first
 + std::__is_heap_until(__first, std::distance(__first, __last), __cmp);
    }
# 547 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator>
   
    inline bool
    is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
    { return std::is_heap_until(__first, __last) == __last; }
# 561 "/usr/include/c++/11/bits/stl_heap.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline bool
    is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last,
     _Compare __comp)
    {

     

      ;
      ;

      const auto __dist = std::distance(__first, __last);
      typedef __decltype(__comp) _Cmp;
      __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(std::move(__comp));
      return std::__is_heap_until(__first, __dist, __cmp) == __dist;
    }



}
# 62 "/usr/include/c++/11/bits/stl_algo.h" 2 3




# 1 "/usr/include/c++/11/bits/uniform_int_dist.h" 1 3
# 40 "/usr/include/c++/11/bits/uniform_int_dist.h" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 57 "/usr/include/c++/11/bits/uniform_int_dist.h" 3
  namespace __detail
  {



    template<typename _Tp>
      constexpr bool
      _Power_of_2(_Tp __x)
      {
 return ((__x - 1) & __x) == 0;
      }
  }






  template<typename _IntType = int>
    class uniform_int_distribution
    {
      static_assert(std::is_integral<_IntType>::value,
      "template argument must be an integral type");

    public:

      typedef _IntType result_type;

      struct param_type
      {
 typedef uniform_int_distribution<_IntType> distribution_type;

 param_type() : param_type(0) { }

 explicit
 param_type(_IntType __a,
     _IntType __b = __gnu_cxx::__int_traits<_IntType>::__max)
 : _M_a(__a), _M_b(__b)
 {
   do { { if (__builtin_expect(!bool(_M_a <= _M_b), false)) std::__replacement_assert("/usr/include/c++/11/bits/uniform_int_dist.h", 96, __PRETTY_FUNCTION__, "_M_a <= _M_b"); } } while (false);
 }

 result_type
 a() const
 { return _M_a; }

 result_type
 b() const
 { return _M_b; }

 friend bool
 operator==(const param_type& __p1, const param_type& __p2)
 { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; }

 friend bool
 operator!=(const param_type& __p1, const param_type& __p2)
 { return !(__p1 == __p2); }

      private:
 _IntType _M_a;
 _IntType _M_b;
      };

    public:



      uniform_int_distribution() : uniform_int_distribution(0) { }




      explicit
      uniform_int_distribution(_IntType __a,
          _IntType __b
     = __gnu_cxx::__int_traits<_IntType>::__max)
      : _M_param(__a, __b)
      { }

      explicit
      uniform_int_distribution(const param_type& __p)
      : _M_param(__p)
      { }






      void
      reset() { }

      result_type
      a() const
      { return _M_param.a(); }

      result_type
      b() const
      { return _M_param.b(); }




      param_type
      param() const
      { return _M_param; }





      void
      param(const param_type& __param)
      { _M_param = __param; }




      result_type
      min() const
      { return this->a(); }




      result_type
      max() const
      { return this->b(); }




      template<typename _UniformRandomBitGenerator>
 result_type
 operator()(_UniformRandomBitGenerator& __urng)
        { return this->operator()(__urng, _M_param); }

      template<typename _UniformRandomBitGenerator>
 result_type
 operator()(_UniformRandomBitGenerator& __urng,
     const param_type& __p);

      template<typename _ForwardIterator,
        typename _UniformRandomBitGenerator>
 void
 __generate(_ForwardIterator __f, _ForwardIterator __t,
     _UniformRandomBitGenerator& __urng)
 { this->__generate(__f, __t, __urng, _M_param); }

      template<typename _ForwardIterator,
        typename _UniformRandomBitGenerator>
 void
 __generate(_ForwardIterator __f, _ForwardIterator __t,
     _UniformRandomBitGenerator& __urng,
     const param_type& __p)
 { this->__generate_impl(__f, __t, __urng, __p); }

      template<typename _UniformRandomBitGenerator>
 void
 __generate(result_type* __f, result_type* __t,
     _UniformRandomBitGenerator& __urng,
     const param_type& __p)
 { this->__generate_impl(__f, __t, __urng, __p); }





      friend bool
      operator==(const uniform_int_distribution& __d1,
   const uniform_int_distribution& __d2)
      { return __d1._M_param == __d2._M_param; }

    private:
      template<typename _ForwardIterator,
        typename _UniformRandomBitGenerator>
 void
 __generate_impl(_ForwardIterator __f, _ForwardIterator __t,
   _UniformRandomBitGenerator& __urng,
   const param_type& __p);

      param_type _M_param;




      template<typename _Wp, typename _Urbg, typename _Up>
 static _Up
 _S_nd(_Urbg& __g, _Up __range)
 {
   using _Up_traits = __gnu_cxx::__int_traits<_Up>;
   using _Wp_traits = __gnu_cxx::__int_traits<_Wp>;
   static_assert(!_Up_traits::__is_signed, "U must be unsigned");
   static_assert(!_Wp_traits::__is_signed, "W must be unsigned");
   static_assert(_Wp_traits::__digits == (2 * _Up_traits::__digits),
   "W must be twice as wide as U");




   _Wp __product = _Wp(__g()) * _Wp(__range);
   _Up __low = _Up(__product);
   if (__low < __range)
     {
       _Up __threshold = -__range % __range;
       while (__low < __threshold)
  {
    __product = _Wp(__g()) * _Wp(__range);
    __low = _Up(__product);
  }
     }
   return __product >> _Up_traits::__digits;
 }
    };

  template<typename _IntType>
    template<typename _UniformRandomBitGenerator>
      typename uniform_int_distribution<_IntType>::result_type
      uniform_int_distribution<_IntType>::
      operator()(_UniformRandomBitGenerator& __urng,
   const param_type& __param)
      {
 typedef typename _UniformRandomBitGenerator::result_type _Gresult_type;
 typedef typename make_unsigned<result_type>::type __utype;
 typedef typename common_type<_Gresult_type, __utype>::type __uctype;

 constexpr __uctype __urngmin = _UniformRandomBitGenerator::min();
 constexpr __uctype __urngmax = _UniformRandomBitGenerator::max();
 static_assert( __urngmin < __urngmax,
     "Uniform random bit generator must define min() < max()");
 constexpr __uctype __urngrange = __urngmax - __urngmin;

 const __uctype __urange
   = __uctype(__param.b()) - __uctype(__param.a());

 __uctype __ret;
 if (__urngrange > __urange)
   {


     const __uctype __uerange = __urange + 1;



     if (__urngrange == 0xffffffffffffffffUL)
       {


  long unsigned int __u64erange = __uerange;
  __ret = _S_nd<unsigned __int128>(__urng, __u64erange);
       }
     else

     if (__urngrange == 0xffffffffU)
       {


  unsigned int __u32erange = __uerange;
  __ret = _S_nd<long unsigned int>(__urng, __u32erange);
       }
     else

       {

  const __uctype __scaling = __urngrange / __uerange;
  const __uctype __past = __uerange * __scaling;
  do
    __ret = __uctype(__urng()) - __urngmin;
  while (__ret >= __past);
  __ret /= __scaling;
       }
   }
 else if (__urngrange < __urange)
   {
# 346 "/usr/include/c++/11/bits/uniform_int_dist.h" 3
     __uctype __tmp;
     do
       {
  const __uctype __uerngrange = __urngrange + 1;
  __tmp = (__uerngrange * operator()
    (__urng, param_type(0, __urange / __uerngrange)));
  __ret = __tmp + (__uctype(__urng()) - __urngmin);
       }
     while (__ret > __urange || __ret < __tmp);
   }
 else
   __ret = __uctype(__urng()) - __urngmin;

 return __ret + __param.a();
      }


  template<typename _IntType>
    template<typename _ForwardIterator,
      typename _UniformRandomBitGenerator>
      void
      uniform_int_distribution<_IntType>::
      __generate_impl(_ForwardIterator __f, _ForwardIterator __t,
        _UniformRandomBitGenerator& __urng,
        const param_type& __param)
      {

 typedef typename _UniformRandomBitGenerator::result_type _Gresult_type;
 typedef typename make_unsigned<result_type>::type __utype;
 typedef typename common_type<_Gresult_type, __utype>::type __uctype;

 static_assert( __urng.min() < __urng.max(),
     "Uniform random bit generator must define min() < max()");

 constexpr __uctype __urngmin = __urng.min();
 constexpr __uctype __urngmax = __urng.max();
 constexpr __uctype __urngrange = __urngmax - __urngmin;
 const __uctype __urange
   = __uctype(__param.b()) - __uctype(__param.a());

 __uctype __ret;

 if (__urngrange > __urange)
   {
     if (__detail::_Power_of_2(__urngrange + 1)
  && __detail::_Power_of_2(__urange + 1))
       {
  while (__f != __t)
    {
      __ret = __uctype(__urng()) - __urngmin;
      *__f++ = (__ret & __urange) + __param.a();
    }
       }
     else
       {

  const __uctype __uerange = __urange + 1;
  const __uctype __scaling = __urngrange / __uerange;
  const __uctype __past = __uerange * __scaling;
  while (__f != __t)
    {
      do
        __ret = __uctype(__urng()) - __urngmin;
      while (__ret >= __past);
      *__f++ = __ret / __scaling + __param.a();
    }
       }
   }
 else if (__urngrange < __urange)
   {
# 431 "/usr/include/c++/11/bits/uniform_int_dist.h" 3
     __uctype __tmp;
     while (__f != __t)
       {
  do
    {
      constexpr __uctype __uerngrange = __urngrange + 1;
      __tmp = (__uerngrange * operator()
        (__urng, param_type(0, __urange / __uerngrange)));
      __ret = __tmp + (__uctype(__urng()) - __urngmin);
    }
  while (__ret > __urange || __ret < __tmp);
  *__f++ = __ret;
       }
   }
 else
   while (__f != __t)
     *__f++ = __uctype(__urng()) - __urngmin + __param.a();
      }




}
# 67 "/usr/include/c++/11/bits/stl_algo.h" 2 3




namespace std __attribute__ ((__visibility__ ("default")))
{



  template<typename _Iterator, typename _Compare>
   
    void
    __move_median_to_first(_Iterator __result,_Iterator __a, _Iterator __b,
      _Iterator __c, _Compare __comp)
    {
      if (__comp(__a, __b))
 {
   if (__comp(__b, __c))
     std::iter_swap(__result, __b);
   else if (__comp(__a, __c))
     std::iter_swap(__result, __c);
   else
     std::iter_swap(__result, __a);
 }
      else if (__comp(__a, __c))
 std::iter_swap(__result, __a);
      else if (__comp(__b, __c))
 std::iter_swap(__result, __c);
      else
 std::iter_swap(__result, __b);
    }


  template<typename _InputIterator, typename _Predicate>
   
    inline _InputIterator
    __find_if_not(_InputIterator __first, _InputIterator __last,
    _Predicate __pred)
    {
      return std::__find_if(__first, __last,
       __gnu_cxx::__ops::__negate(__pred),
       std::__iterator_category(__first));
    }




  template<typename _InputIterator, typename _Predicate, typename _Distance>
   
    _InputIterator
    __find_if_not_n(_InputIterator __first, _Distance& __len, _Predicate __pred)
    {
      for (; __len; --__len, (void) ++__first)
 if (!__pred(__first))
   break;
      return __first;
    }
# 138 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    _ForwardIterator1
    __search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
      _ForwardIterator2 __first2, _ForwardIterator2 __last2,
      _BinaryPredicate __predicate)
    {

      if (__first1 == __last1 || __first2 == __last2)
 return __first1;


      _ForwardIterator2 __p1(__first2);
      if (++__p1 == __last2)
 return std::__find_if(__first1, __last1,
  __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2));


      _ForwardIterator1 __current = __first1;

      for (;;)
 {
   __first1 =
     std::__find_if(__first1, __last1,
  __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2));

   if (__first1 == __last1)
     return __last1;

   _ForwardIterator2 __p = __p1;
   __current = __first1;
   if (++__current == __last1)
     return __last1;

   while (__predicate(__current, __p))
     {
       if (++__p == __last2)
  return __first1;
       if (++__current == __last1)
  return __last1;
     }
   ++__first1;
 }
      return __first1;
    }






  template<typename _ForwardIterator, typename _Integer,
    typename _UnaryPredicate>
   
    _ForwardIterator
    __search_n_aux(_ForwardIterator __first, _ForwardIterator __last,
     _Integer __count, _UnaryPredicate __unary_pred,
     std::forward_iterator_tag)
    {
      __first = std::__find_if(__first, __last, __unary_pred);
      while (__first != __last)
 {
   typename iterator_traits<_ForwardIterator>::difference_type
     __n = __count;
   _ForwardIterator __i = __first;
   ++__i;
   while (__i != __last && __n != 1 && __unary_pred(__i))
     {
       ++__i;
       --__n;
     }
   if (__n == 1)
     return __first;
   if (__i == __last)
     return __last;
   __first = std::__find_if(++__i, __last, __unary_pred);
 }
      return __last;
    }





  template<typename _RandomAccessIter, typename _Integer,
    typename _UnaryPredicate>
   
    _RandomAccessIter
    __search_n_aux(_RandomAccessIter __first, _RandomAccessIter __last,
     _Integer __count, _UnaryPredicate __unary_pred,
     std::random_access_iterator_tag)
    {
      typedef typename std::iterator_traits<_RandomAccessIter>::difference_type
 _DistanceType;

      _DistanceType __tailSize = __last - __first;
      _DistanceType __remainder = __count;

      while (__remainder <= __tailSize)
 {
   __first += __remainder;
   __tailSize -= __remainder;


   _RandomAccessIter __backTrack = __first;
   while (__unary_pred(--__backTrack))
     {
       if (--__remainder == 0)
  return (__first - __count);
     }
   __remainder = __count + 1 - (__first - __backTrack);
 }
      return __last;
    }

  template<typename _ForwardIterator, typename _Integer,
    typename _UnaryPredicate>
   
    _ForwardIterator
    __search_n(_ForwardIterator __first, _ForwardIterator __last,
        _Integer __count,
        _UnaryPredicate __unary_pred)
    {
      if (__count <= 0)
 return __first;

      if (__count == 1)
 return std::__find_if(__first, __last, __unary_pred);

      return std::__search_n_aux(__first, __last, __count, __unary_pred,
     std::__iterator_category(__first));
    }


  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    _ForwardIterator1
    __find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
        _ForwardIterator2 __first2, _ForwardIterator2 __last2,
        forward_iterator_tag, forward_iterator_tag,
        _BinaryPredicate __comp)
    {
      if (__first2 == __last2)
 return __last1;

      _ForwardIterator1 __result = __last1;
      while (1)
 {
   _ForwardIterator1 __new_result
     = std::__search(__first1, __last1, __first2, __last2, __comp);
   if (__new_result == __last1)
     return __result;
   else
     {
       __result = __new_result;
       __first1 = __new_result;
       ++__first1;
     }
 }
    }


  template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
    typename _BinaryPredicate>
   
    _BidirectionalIterator1
    __find_end(_BidirectionalIterator1 __first1,
        _BidirectionalIterator1 __last1,
        _BidirectionalIterator2 __first2,
        _BidirectionalIterator2 __last2,
        bidirectional_iterator_tag, bidirectional_iterator_tag,
        _BinaryPredicate __comp)
    {

     

     


      typedef reverse_iterator<_BidirectionalIterator1> _RevIterator1;
      typedef reverse_iterator<_BidirectionalIterator2> _RevIterator2;

      _RevIterator1 __rlast1(__first1);
      _RevIterator2 __rlast2(__first2);
      _RevIterator1 __rresult = std::__search(_RevIterator1(__last1), __rlast1,
           _RevIterator2(__last2), __rlast2,
           __comp);

      if (__rresult == __rlast1)
 return __last1;
      else
 {
   _BidirectionalIterator1 __result = __rresult.base();
   std::advance(__result, -std::distance(__first2, __last2));
   return __result;
 }
    }
# 364 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2>
   
    inline _ForwardIterator1
    find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
      _ForwardIterator2 __first2, _ForwardIterator2 __last2)
    {

     
     
     


      ;
      ;

      return std::__find_end(__first1, __last1, __first2, __last2,
        std::__iterator_category(__first1),
        std::__iterator_category(__first2),
        __gnu_cxx::__ops::__iter_equal_to_iter());
    }
# 413 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    inline _ForwardIterator1
    find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
      _ForwardIterator2 __first2, _ForwardIterator2 __last2,
      _BinaryPredicate __comp)
    {

     
     
     


      ;
      ;

      return std::__find_end(__first1, __last1, __first2, __last2,
        std::__iterator_category(__first1),
        std::__iterator_category(__first2),
        __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 449 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline bool
    all_of(_InputIterator __first, _InputIterator __last, _Predicate __pred)
    { return __last == std::find_if_not(__first, __last, __pred); }
# 467 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline bool
    none_of(_InputIterator __first, _InputIterator __last, _Predicate __pred)
    { return __last == std::find_if(__first, __last, __pred); }
# 486 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline bool
    any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred)
    { return !std::none_of(__first, __last, __pred); }
# 502 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline _InputIterator
    find_if_not(_InputIterator __first, _InputIterator __last,
  _Predicate __pred)
    {

     
     

      ;
      return std::__find_if_not(__first, __last,
    __gnu_cxx::__ops::__pred_iter(__pred));
    }
# 527 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline bool
    is_partitioned(_InputIterator __first, _InputIterator __last,
     _Predicate __pred)
    {
      __first = std::find_if_not(__first, __last, __pred);
      if (__first == __last)
 return true;
      ++__first;
      return std::none_of(__first, __last, __pred);
    }
# 549 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Predicate>
   
    _ForwardIterator
    partition_point(_ForwardIterator __first, _ForwardIterator __last,
      _Predicate __pred)
    {

     
     



      ;

      typedef typename iterator_traits<_ForwardIterator>::difference_type
 _DistanceType;

      _DistanceType __len = std::distance(__first, __last);

      while (__len > 0)
 {
   _DistanceType __half = __len >> 1;
   _ForwardIterator __middle = __first;
   std::advance(__middle, __half);
   if (__pred(*__middle))
     {
       __first = __middle;
       ++__first;
       __len = __len - __half - 1;
     }
   else
     __len = __half;
 }
      return __first;
    }


  template<typename _InputIterator, typename _OutputIterator,
    typename _Predicate>
   
    _OutputIterator
    __remove_copy_if(_InputIterator __first, _InputIterator __last,
       _OutputIterator __result, _Predicate __pred)
    {
      for (; __first != __last; ++__first)
 if (!__pred(__first))
   {
     *__result = *__first;
     ++__result;
   }
      return __result;
    }
# 616 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator, typename _Tp>
   
    inline _OutputIterator
    remove_copy(_InputIterator __first, _InputIterator __last,
  _OutputIterator __result, const _Tp& __value)
    {

     
     

     

      ;

      return std::__remove_copy_if(__first, __last, __result,
 __gnu_cxx::__ops::__iter_equals_val(__value));
    }
# 649 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator,
    typename _Predicate>
   
    inline _OutputIterator
    remove_copy_if(_InputIterator __first, _InputIterator __last,
     _OutputIterator __result, _Predicate __pred)
    {

     
     

     

      ;

      return std::__remove_copy_if(__first, __last, __result,
       __gnu_cxx::__ops::__pred_iter(__pred));
    }
# 684 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator,
    typename _Predicate>
   
    _OutputIterator
    copy_if(_InputIterator __first, _InputIterator __last,
     _OutputIterator __result, _Predicate __pred)
    {

     
     

     

      ;

      for (; __first != __last; ++__first)
 if (__pred(*__first))
   {
     *__result = *__first;
     ++__result;
   }
      return __result;
    }

  template<typename _InputIterator, typename _Size, typename _OutputIterator>
   
    _OutputIterator
    __copy_n(_InputIterator __first, _Size __n,
      _OutputIterator __result, input_iterator_tag)
    {
      return std::__niter_wrap(__result,
          __copy_n_a(__first, __n,
       std::__niter_base(__result), true));
    }

  template<typename _RandomAccessIterator, typename _Size,
    typename _OutputIterator>
   
    inline _OutputIterator
    __copy_n(_RandomAccessIterator __first, _Size __n,
      _OutputIterator __result, random_access_iterator_tag)
    { return std::copy(__first, __first + __n, __result); }
# 740 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Size, typename _OutputIterator>
   
    inline _OutputIterator
    copy_n(_InputIterator __first, _Size __n, _OutputIterator __result)
    {

     
     


      const auto __n2 = std::__size_to_integer(__n);
      if (__n2 <= 0)
 return __result;

      ;
      ;

      return std::__copy_n(__first, __n2, __result,
      std::__iterator_category(__first));
    }
# 776 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator1,
    typename _OutputIterator2, typename _Predicate>
   
    pair<_OutputIterator1, _OutputIterator2>
    partition_copy(_InputIterator __first, _InputIterator __last,
     _OutputIterator1 __out_true, _OutputIterator2 __out_false,
     _Predicate __pred)
    {

     
     

     

     

      ;

      for (; __first != __last; ++__first)
 if (__pred(*__first))
   {
     *__out_true = *__first;
     ++__out_true;
   }
 else
   {
     *__out_false = *__first;
     ++__out_false;
   }

      return pair<_OutputIterator1, _OutputIterator2>(__out_true, __out_false);
    }


  template<typename _ForwardIterator, typename _Predicate>
   
    _ForwardIterator
    __remove_if(_ForwardIterator __first, _ForwardIterator __last,
  _Predicate __pred)
    {
      __first = std::__find_if(__first, __last, __pred);
      if (__first == __last)
 return __first;
      _ForwardIterator __result = __first;
      ++__first;
      for (; __first != __last; ++__first)
 if (!__pred(__first))
   {
     *__result = std::move(*__first);
     ++__result;
   }
      return __result;
    }
# 847 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    inline _ForwardIterator
    remove(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __value)
    {

     

     

      ;

      return std::__remove_if(__first, __last,
  __gnu_cxx::__ops::__iter_equals_val(__value));
    }
# 881 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Predicate>
   
    inline _ForwardIterator
    remove_if(_ForwardIterator __first, _ForwardIterator __last,
       _Predicate __pred)
    {

     

     

      ;

      return std::__remove_if(__first, __last,
         __gnu_cxx::__ops::__pred_iter(__pred));
    }

  template<typename _ForwardIterator, typename _BinaryPredicate>
   
    _ForwardIterator
    __adjacent_find(_ForwardIterator __first, _ForwardIterator __last,
      _BinaryPredicate __binary_pred)
    {
      if (__first == __last)
 return __last;
      _ForwardIterator __next = __first;
      while (++__next != __last)
 {
   if (__binary_pred(__first, __next))
     return __first;
   __first = __next;
 }
      return __last;
    }

  template<typename _ForwardIterator, typename _BinaryPredicate>
   
    _ForwardIterator
    __unique(_ForwardIterator __first, _ForwardIterator __last,
      _BinaryPredicate __binary_pred)
    {

      __first = std::__adjacent_find(__first, __last, __binary_pred);
      if (__first == __last)
 return __last;


      _ForwardIterator __dest = __first;
      ++__first;
      while (++__first != __last)
 if (!__binary_pred(__dest, __first))
   *++__dest = std::move(*__first);
      return ++__dest;
    }
# 950 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline _ForwardIterator
    unique(_ForwardIterator __first, _ForwardIterator __last)
    {

     

     

      ;

      return std::__unique(__first, __last,
      __gnu_cxx::__ops::__iter_equal_to_iter());
    }
# 981 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _BinaryPredicate>
   
    inline _ForwardIterator
    unique(_ForwardIterator __first, _ForwardIterator __last,
    _BinaryPredicate __binary_pred)
    {

     

     


      ;

      return std::__unique(__first, __last,
      __gnu_cxx::__ops::__iter_comp_iter(__binary_pred));
    }







  template<typename _ForwardIterator, typename _OutputIterator,
    typename _BinaryPredicate>
   
    _OutputIterator
    __unique_copy(_ForwardIterator __first, _ForwardIterator __last,
    _OutputIterator __result, _BinaryPredicate __binary_pred,
    forward_iterator_tag, output_iterator_tag)
    {

     



      _ForwardIterator __next = __first;
      *__result = *__first;
      while (++__next != __last)
 if (!__binary_pred(__first, __next))
   {
     __first = __next;
     *++__result = *__first;
   }
      return ++__result;
    }







  template<typename _InputIterator, typename _OutputIterator,
    typename _BinaryPredicate>
   
    _OutputIterator
    __unique_copy(_InputIterator __first, _InputIterator __last,
    _OutputIterator __result, _BinaryPredicate __binary_pred,
    input_iterator_tag, output_iterator_tag)
    {

     



      typename iterator_traits<_InputIterator>::value_type __value = *__first;
      __decltype(__gnu_cxx::__ops::__iter_comp_val(__binary_pred))
 __rebound_pred
 = __gnu_cxx::__ops::__iter_comp_val(__binary_pred);
      *__result = __value;
      while (++__first != __last)
 if (!__rebound_pred(__first, __value))
   {
     __value = *__first;
     *++__result = __value;
   }
      return ++__result;
    }







  template<typename _InputIterator, typename _ForwardIterator,
    typename _BinaryPredicate>
   
    _ForwardIterator
    __unique_copy(_InputIterator __first, _InputIterator __last,
    _ForwardIterator __result, _BinaryPredicate __binary_pred,
    input_iterator_tag, forward_iterator_tag)
    {

     


      *__result = *__first;
      while (++__first != __last)
 if (!__binary_pred(__result, __first))
   *++__result = *__first;
      return ++__result;
    }






  template<typename _BidirectionalIterator>
   
    void
    __reverse(_BidirectionalIterator __first, _BidirectionalIterator __last,
       bidirectional_iterator_tag)
    {
      while (true)
 if (__first == __last || __first == --__last)
   return;
 else
   {
     std::iter_swap(__first, __last);
     ++__first;
   }
    }






  template<typename _RandomAccessIterator>
   
    void
    __reverse(_RandomAccessIterator __first, _RandomAccessIterator __last,
       random_access_iterator_tag)
    {
      if (__first == __last)
 return;
      --__last;
      while (__first < __last)
 {
   std::iter_swap(__first, __last);
   ++__first;
   --__last;
 }
    }
# 1142 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator>
   
    inline void
    reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
    {

     

      ;
      std::__reverse(__first, __last, std::__iterator_category(__first));
    }
# 1170 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator, typename _OutputIterator>
   
    _OutputIterator
    reverse_copy(_BidirectionalIterator __first, _BidirectionalIterator __last,
   _OutputIterator __result)
    {

     

     

      ;

      while (__first != __last)
 {
   --__last;
   *__result = *__last;
   ++__result;
 }
      return __result;
    }





  template<typename _EuclideanRingElement>
   
    _EuclideanRingElement
    __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n)
    {
      while (__n != 0)
 {
   _EuclideanRingElement __t = __m % __n;
   __m = __n;
   __n = __t;
 }
      return __m;
    }

  inline namespace _V2
  {


  template<typename _ForwardIterator>
   
    _ForwardIterator
    __rotate(_ForwardIterator __first,
      _ForwardIterator __middle,
      _ForwardIterator __last,
      forward_iterator_tag)
    {
      if (__first == __middle)
 return __last;
      else if (__last == __middle)
 return __first;

      _ForwardIterator __first2 = __middle;
      do
 {
   std::iter_swap(__first, __first2);
   ++__first;
   ++__first2;
   if (__first == __middle)
     __middle = __first2;
 }
      while (__first2 != __last);

      _ForwardIterator __ret = __first;

      __first2 = __middle;

      while (__first2 != __last)
 {
   std::iter_swap(__first, __first2);
   ++__first;
   ++__first2;
   if (__first == __middle)
     __middle = __first2;
   else if (__first2 == __last)
     __first2 = __middle;
 }
      return __ret;
    }


  template<typename _BidirectionalIterator>
   
    _BidirectionalIterator
    __rotate(_BidirectionalIterator __first,
      _BidirectionalIterator __middle,
      _BidirectionalIterator __last,
       bidirectional_iterator_tag)
    {

     


      if (__first == __middle)
 return __last;
      else if (__last == __middle)
 return __first;

      std::__reverse(__first, __middle, bidirectional_iterator_tag());
      std::__reverse(__middle, __last, bidirectional_iterator_tag());

      while (__first != __middle && __middle != __last)
 {
   std::iter_swap(__first, --__last);
   ++__first;
 }

      if (__first == __middle)
 {
   std::__reverse(__middle, __last, bidirectional_iterator_tag());
   return __last;
 }
      else
 {
   std::__reverse(__first, __middle, bidirectional_iterator_tag());
   return __first;
 }
    }


  template<typename _RandomAccessIterator>
   
    _RandomAccessIterator
    __rotate(_RandomAccessIterator __first,
      _RandomAccessIterator __middle,
      _RandomAccessIterator __last,
      random_access_iterator_tag)
    {

     


      if (__first == __middle)
 return __last;
      else if (__last == __middle)
 return __first;

      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
 _Distance;
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
 _ValueType;

      _Distance __n = __last - __first;
      _Distance __k = __middle - __first;

      if (__k == __n - __k)
 {
   std::swap_ranges(__first, __middle, __middle);
   return __middle;
 }

      _RandomAccessIterator __p = __first;
      _RandomAccessIterator __ret = __first + (__last - __middle);

      for (;;)
 {
   if (__k < __n - __k)
     {
       if (__is_pod(_ValueType) && __k == 1)
  {
    _ValueType __t = std::move(*__p);
    std::move(__p + 1, __p + __n, __p);
    *(__p + __n - 1) = std::move(__t);
    return __ret;
  }
       _RandomAccessIterator __q = __p + __k;
       for (_Distance __i = 0; __i < __n - __k; ++ __i)
  {
    std::iter_swap(__p, __q);
    ++__p;
    ++__q;
  }
       __n %= __k;
       if (__n == 0)
  return __ret;
       std::swap(__n, __k);
       __k = __n - __k;
     }
   else
     {
       __k = __n - __k;
       if (__is_pod(_ValueType) && __k == 1)
  {
    _ValueType __t = std::move(*(__p + __n - 1));
    std::move_backward(__p, __p + __n - 1, __p + __n);
    *__p = std::move(__t);
    return __ret;
  }
       _RandomAccessIterator __q = __p + __n;
       __p = __q - __k;
       for (_Distance __i = 0; __i < __n - __k; ++ __i)
  {
    --__p;
    --__q;
    std::iter_swap(__p, __q);
  }
       __n %= __k;
       if (__n == 0)
  return __ret;
       std::swap(__n, __k);
     }
 }
    }
# 1402 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline _ForwardIterator
    rotate(_ForwardIterator __first, _ForwardIterator __middle,
    _ForwardIterator __last)
    {

     

      ;
      ;

      return std::__rotate(__first, __middle, __last,
      std::__iterator_category(__first));
    }

  }
# 1440 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _OutputIterator>
   
    inline _OutputIterator
    rotate_copy(_ForwardIterator __first, _ForwardIterator __middle,
  _ForwardIterator __last, _OutputIterator __result)
    {

     
     

      ;
      ;

      return std::copy(__first, __middle,
         std::copy(__middle, __last, __result));
    }


  template<typename _ForwardIterator, typename _Predicate>
   
    _ForwardIterator
    __partition(_ForwardIterator __first, _ForwardIterator __last,
  _Predicate __pred, forward_iterator_tag)
    {
      if (__first == __last)
 return __first;

      while (__pred(*__first))
 if (++__first == __last)
   return __first;

      _ForwardIterator __next = __first;

      while (++__next != __last)
 if (__pred(*__next))
   {
     std::iter_swap(__first, __next);
     ++__first;
   }

      return __first;
    }


  template<typename _BidirectionalIterator, typename _Predicate>
   
    _BidirectionalIterator
    __partition(_BidirectionalIterator __first, _BidirectionalIterator __last,
  _Predicate __pred, bidirectional_iterator_tag)
    {
      while (true)
 {
   while (true)
     if (__first == __last)
       return __first;
     else if (__pred(*__first))
       ++__first;
     else
       break;
   --__last;
   while (true)
     if (__first == __last)
       return __first;
     else if (!bool(__pred(*__last)))
       --__last;
     else
       break;
   std::iter_swap(__first, __last);
   ++__first;
 }
    }
# 1520 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Pointer, typename _Predicate,
    typename _Distance>
    _ForwardIterator
    __stable_partition_adaptive(_ForwardIterator __first,
    _ForwardIterator __last,
    _Predicate __pred, _Distance __len,
    _Pointer __buffer,
    _Distance __buffer_size)
    {
      if (__len == 1)
 return __first;

      if (__len <= __buffer_size)
 {
   _ForwardIterator __result1 = __first;
   _Pointer __result2 = __buffer;




   *__result2 = std::move(*__first);
   ++__result2;
   ++__first;
   for (; __first != __last; ++__first)
     if (__pred(__first))
       {
  *__result1 = std::move(*__first);
  ++__result1;
       }
     else
       {
  *__result2 = std::move(*__first);
  ++__result2;
       }

   std::move(__buffer, __result2, __result1);
   return __result1;
 }

      _ForwardIterator __middle = __first;
      std::advance(__middle, __len / 2);
      _ForwardIterator __left_split =
 std::__stable_partition_adaptive(__first, __middle, __pred,
      __len / 2, __buffer,
      __buffer_size);



      _Distance __right_len = __len - __len / 2;
      _ForwardIterator __right_split =
 std::__find_if_not_n(__middle, __right_len, __pred);

      if (__right_len)
 __right_split =
   std::__stable_partition_adaptive(__right_split, __last, __pred,
        __right_len,
        __buffer, __buffer_size);

      return std::rotate(__left_split, __middle, __right_split);
    }

  template<typename _ForwardIterator, typename _Predicate>
    _ForwardIterator
    __stable_partition(_ForwardIterator __first, _ForwardIterator __last,
         _Predicate __pred)
    {
      __first = std::__find_if_not(__first, __last, __pred);

      if (__first == __last)
 return __first;

      typedef typename iterator_traits<_ForwardIterator>::value_type
 _ValueType;
      typedef typename iterator_traits<_ForwardIterator>::difference_type
 _DistanceType;

      _Temporary_buffer<_ForwardIterator, _ValueType>
 __buf(__first, std::distance(__first, __last));
      return
 std::__stable_partition_adaptive(__first, __last, __pred,
      _DistanceType(__buf.requested_size()),
      __buf.begin(),
      _DistanceType(__buf.size()));
    }
# 1622 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Predicate>
    inline _ForwardIterator
    stable_partition(_ForwardIterator __first, _ForwardIterator __last,
       _Predicate __pred)
    {

     

     

      ;

      return std::__stable_partition(__first, __last,
         __gnu_cxx::__ops::__pred_iter(__pred));
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __heap_select(_RandomAccessIterator __first,
    _RandomAccessIterator __middle,
    _RandomAccessIterator __last, _Compare __comp)
    {
      std::__make_heap(__first, __middle, __comp);
      for (_RandomAccessIterator __i = __middle; __i < __last; ++__i)
 if (__comp(__i, __first))
   std::__pop_heap(__first, __middle, __i, __comp);
    }



  template<typename _InputIterator, typename _RandomAccessIterator,
    typename _Compare>
   
    _RandomAccessIterator
    __partial_sort_copy(_InputIterator __first, _InputIterator __last,
   _RandomAccessIterator __result_first,
   _RandomAccessIterator __result_last,
   _Compare __comp)
    {
      typedef typename iterator_traits<_InputIterator>::value_type
 _InputValueType;
      typedef iterator_traits<_RandomAccessIterator> _RItTraits;
      typedef typename _RItTraits::difference_type _DistanceType;

      if (__result_first == __result_last)
 return __result_last;
      _RandomAccessIterator __result_real_last = __result_first;
      while (__first != __last && __result_real_last != __result_last)
 {
   *__result_real_last = *__first;
   ++__result_real_last;
   ++__first;
 }

      std::__make_heap(__result_first, __result_real_last, __comp);
      while (__first != __last)
 {
   if (__comp(__first, __result_first))
     std::__adjust_heap(__result_first, _DistanceType(0),
          _DistanceType(__result_real_last
          - __result_first),
          _InputValueType(*__first), __comp);
   ++__first;
 }
      std::__sort_heap(__result_first, __result_real_last, __comp);
      return __result_real_last;
    }
# 1710 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _RandomAccessIterator>
   
    inline _RandomAccessIterator
    partial_sort_copy(_InputIterator __first, _InputIterator __last,
        _RandomAccessIterator __result_first,
        _RandomAccessIterator __result_last)
    {
# 1725 "/usr/include/c++/11/bits/stl_algo.h" 3
     
     

     

     
      ;
      ;
      ;

      return std::__partial_sort_copy(__first, __last,
          __result_first, __result_last,
          __gnu_cxx::__ops::__iter_less_iter());
    }
# 1760 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _RandomAccessIterator,
    typename _Compare>
   
    inline _RandomAccessIterator
    partial_sort_copy(_InputIterator __first, _InputIterator __last,
        _RandomAccessIterator __result_first,
        _RandomAccessIterator __result_last,
        _Compare __comp)
    {
# 1777 "/usr/include/c++/11/bits/stl_algo.h" 3
     
     

     

     

     

      ;
      ;
      ;

      return std::__partial_sort_copy(__first, __last,
          __result_first, __result_last,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __unguarded_linear_insert(_RandomAccessIterator __last,
         _Compare __comp)
    {
      typename iterator_traits<_RandomAccessIterator>::value_type
 __val = std::move(*__last);
      _RandomAccessIterator __next = __last;
      --__next;
      while (__comp(__val, __next))
 {
   *__last = std::move(*__next);
   __last = __next;
   --__next;
 }
      *__last = std::move(__val);
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __insertion_sort(_RandomAccessIterator __first,
       _RandomAccessIterator __last, _Compare __comp)
    {
      if (__first == __last) return;

      for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
 {
   if (__comp(__i, __first))
     {
       typename iterator_traits<_RandomAccessIterator>::value_type
  __val = std::move(*__i);
       std::move_backward(__first, __i, __i + 1);
       *__first = std::move(__val);
     }
   else
     std::__unguarded_linear_insert(__i,
    __gnu_cxx::__ops::__val_comp_iter(__comp));
 }
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    __unguarded_insertion_sort(_RandomAccessIterator __first,
          _RandomAccessIterator __last, _Compare __comp)
    {
      for (_RandomAccessIterator __i = __first; __i != __last; ++__i)
 std::__unguarded_linear_insert(__i,
    __gnu_cxx::__ops::__val_comp_iter(__comp));
    }





  enum { _S_threshold = 16 };


  template<typename _RandomAccessIterator, typename _Compare>
   
    void
    __final_insertion_sort(_RandomAccessIterator __first,
      _RandomAccessIterator __last, _Compare __comp)
    {
      if (__last - __first > int(_S_threshold))
 {
   std::__insertion_sort(__first, __first + int(_S_threshold), __comp);
   std::__unguarded_insertion_sort(__first + int(_S_threshold), __last,
       __comp);
 }
      else
 std::__insertion_sort(__first, __last, __comp);
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    _RandomAccessIterator
    __unguarded_partition(_RandomAccessIterator __first,
     _RandomAccessIterator __last,
     _RandomAccessIterator __pivot, _Compare __comp)
    {
      while (true)
 {
   while (__comp(__first, __pivot))
     ++__first;
   --__last;
   while (__comp(__pivot, __last))
     --__last;
   if (!(__first < __last))
     return __first;
   std::iter_swap(__first, __last);
   ++__first;
 }
    }


  template<typename _RandomAccessIterator, typename _Compare>
   
    inline _RandomAccessIterator
    __unguarded_partition_pivot(_RandomAccessIterator __first,
    _RandomAccessIterator __last, _Compare __comp)
    {
      _RandomAccessIterator __mid = __first + (__last - __first) / 2;
      std::__move_median_to_first(__first, __first + 1, __mid, __last - 1,
      __comp);
      return std::__unguarded_partition(__first + 1, __last, __first, __comp);
    }

  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    __partial_sort(_RandomAccessIterator __first,
     _RandomAccessIterator __middle,
     _RandomAccessIterator __last,
     _Compare __comp)
    {
      std::__heap_select(__first, __middle, __last, __comp);
      std::__sort_heap(__first, __middle, __comp);
    }


  template<typename _RandomAccessIterator, typename _Size, typename _Compare>
   
    void
    __introsort_loop(_RandomAccessIterator __first,
       _RandomAccessIterator __last,
       _Size __depth_limit, _Compare __comp)
    {
      while (__last - __first > int(_S_threshold))
 {
   if (__depth_limit == 0)
     {
       std::__partial_sort(__first, __last, __last, __comp);
       return;
     }
   --__depth_limit;
   _RandomAccessIterator __cut =
     std::__unguarded_partition_pivot(__first, __last, __comp);
   std::__introsort_loop(__cut, __last, __depth_limit, __comp);
   __last = __cut;
 }
    }



  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    __sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
    _Compare __comp)
    {
      if (__first != __last)
 {
   std::__introsort_loop(__first, __last,
    std::__lg(__last - __first) * 2,
    __comp);
   std::__final_insertion_sort(__first, __last, __comp);
 }
    }

  template<typename _RandomAccessIterator, typename _Size, typename _Compare>
   
    void
    __introselect(_RandomAccessIterator __first, _RandomAccessIterator __nth,
    _RandomAccessIterator __last, _Size __depth_limit,
    _Compare __comp)
    {
      while (__last - __first > 3)
 {
   if (__depth_limit == 0)
     {
       std::__heap_select(__first, __nth + 1, __last, __comp);

       std::iter_swap(__first, __nth);
       return;
     }
   --__depth_limit;
   _RandomAccessIterator __cut =
     std::__unguarded_partition_pivot(__first, __last, __comp);
   if (__cut <= __nth)
     __first = __cut;
   else
     __last = __cut;
 }
      std::__insertion_sort(__first, __last, __comp);
    }
# 2008 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    inline _ForwardIterator
    lower_bound(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val, _Compare __comp)
    {

     
     

     
                    ;

      return std::__lower_bound(__first, __last, __val,
    __gnu_cxx::__ops::__iter_comp_val(__comp));
    }

  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    _ForwardIterator
    __upper_bound(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __val, _Compare __comp)
    {
      typedef typename iterator_traits<_ForwardIterator>::difference_type
 _DistanceType;

      _DistanceType __len = std::distance(__first, __last);

      while (__len > 0)
 {
   _DistanceType __half = __len >> 1;
   _ForwardIterator __middle = __first;
   std::advance(__middle, __half);
   if (__comp(__val, __middle))
     __len = __half;
   else
     {
       __first = __middle;
       ++__first;
       __len = __len - __half - 1;
     }
 }
      return __first;
    }
# 2064 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    inline _ForwardIterator
    upper_bound(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val)
    {

     
     

      ;

      return std::__upper_bound(__first, __last, __val,
    __gnu_cxx::__ops::__val_less_iter());
    }
# 2095 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    inline _ForwardIterator
    upper_bound(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val, _Compare __comp)
    {

     
     

     
                    ;

      return std::__upper_bound(__first, __last, __val,
    __gnu_cxx::__ops::__val_comp_iter(__comp));
    }

  template<typename _ForwardIterator, typename _Tp,
    typename _CompareItTp, typename _CompareTpIt>
   
    pair<_ForwardIterator, _ForwardIterator>
    __equal_range(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __val,
    _CompareItTp __comp_it_val, _CompareTpIt __comp_val_it)
    {
      typedef typename iterator_traits<_ForwardIterator>::difference_type
 _DistanceType;

      _DistanceType __len = std::distance(__first, __last);

      while (__len > 0)
 {
   _DistanceType __half = __len >> 1;
   _ForwardIterator __middle = __first;
   std::advance(__middle, __half);
   if (__comp_it_val(__middle, __val))
     {
       __first = __middle;
       ++__first;
       __len = __len - __half - 1;
     }
   else if (__comp_val_it(__val, __middle))
     __len = __half;
   else
     {
       _ForwardIterator __left
  = std::__lower_bound(__first, __middle, __val, __comp_it_val);
       std::advance(__first, __len);
       _ForwardIterator __right
  = std::__upper_bound(++__middle, __first, __val, __comp_val_it);
       return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
     }
 }
      return pair<_ForwardIterator, _ForwardIterator>(__first, __first);
    }
# 2168 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    inline pair<_ForwardIterator, _ForwardIterator>
    equal_range(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val)
    {

     
     

     

      ;
      ;

      return std::__equal_range(__first, __last, __val,
    __gnu_cxx::__ops::__iter_less_val(),
    __gnu_cxx::__ops::__val_less_iter());
    }
# 2205 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    inline pair<_ForwardIterator, _ForwardIterator>
    equal_range(_ForwardIterator __first, _ForwardIterator __last,
  const _Tp& __val, _Compare __comp)
    {

     
     

     

     
                    ;
     
                    ;

      return std::__equal_range(__first, __last, __val,
    __gnu_cxx::__ops::__iter_comp_val(__comp),
    __gnu_cxx::__ops::__val_comp_iter(__comp));
    }
# 2239 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    bool
    binary_search(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __val)
    {

     
     

      ;
      ;

      _ForwardIterator __i
 = std::__lower_bound(__first, __last, __val,
        __gnu_cxx::__ops::__iter_less_val());
      return __i != __last && !(__val < *__i);
    }
# 2273 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp, typename _Compare>
   
    bool
    binary_search(_ForwardIterator __first, _ForwardIterator __last,
    const _Tp& __val, _Compare __comp)
    {

     
     

     
                    ;
     
                    ;

      _ForwardIterator __i
 = std::__lower_bound(__first, __last, __val,
        __gnu_cxx::__ops::__iter_comp_val(__comp));
      return __i != __last && !bool(__comp(__val, *__i));
    }




  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
    void
    __move_merge_adaptive(_InputIterator1 __first1, _InputIterator1 __last1,
     _InputIterator2 __first2, _InputIterator2 __last2,
     _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 {
   if (__comp(__first2, __first1))
     {
       *__result = std::move(*__first2);
       ++__first2;
     }
   else
     {
       *__result = std::move(*__first1);
       ++__first1;
     }
   ++__result;
 }
      if (__first1 != __last1)
 std::move(__first1, __last1, __result);
    }


  template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
    typename _BidirectionalIterator3, typename _Compare>
    void
    __move_merge_adaptive_backward(_BidirectionalIterator1 __first1,
       _BidirectionalIterator1 __last1,
       _BidirectionalIterator2 __first2,
       _BidirectionalIterator2 __last2,
       _BidirectionalIterator3 __result,
       _Compare __comp)
    {
      if (__first1 == __last1)
 {
   std::move_backward(__first2, __last2, __result);
   return;
 }
      else if (__first2 == __last2)
 return;

      --__last1;
      --__last2;
      while (true)
 {
   if (__comp(__last2, __last1))
     {
       *--__result = std::move(*__last1);
       if (__first1 == __last1)
  {
    std::move_backward(__first2, ++__last2, __result);
    return;
  }
       --__last1;
     }
   else
     {
       *--__result = std::move(*__last2);
       if (__first2 == __last2)
  return;
       --__last2;
     }
 }
    }


  template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
    typename _Distance>
    _BidirectionalIterator1
    __rotate_adaptive(_BidirectionalIterator1 __first,
        _BidirectionalIterator1 __middle,
        _BidirectionalIterator1 __last,
        _Distance __len1, _Distance __len2,
        _BidirectionalIterator2 __buffer,
        _Distance __buffer_size)
    {
      _BidirectionalIterator2 __buffer_end;
      if (__len1 > __len2 && __len2 <= __buffer_size)
 {
   if (__len2)
     {
       __buffer_end = std::move(__middle, __last, __buffer);
       std::move_backward(__first, __middle, __last);
       return std::move(__buffer, __buffer_end, __first);
     }
   else
     return __first;
 }
      else if (__len1 <= __buffer_size)
 {
   if (__len1)
     {
       __buffer_end = std::move(__first, __middle, __buffer);
       std::move(__middle, __last, __first);
       return std::move_backward(__buffer, __buffer_end, __last);
     }
   else
     return __last;
 }
      else
 return std::rotate(__first, __middle, __last);
    }


  template<typename _BidirectionalIterator, typename _Distance,
    typename _Pointer, typename _Compare>
    void
    __merge_adaptive(_BidirectionalIterator __first,
       _BidirectionalIterator __middle,
       _BidirectionalIterator __last,
       _Distance __len1, _Distance __len2,
       _Pointer __buffer, _Distance __buffer_size,
       _Compare __comp)
    {
      if (__len1 <= __len2 && __len1 <= __buffer_size)
 {
   _Pointer __buffer_end = std::move(__first, __middle, __buffer);
   std::__move_merge_adaptive(__buffer, __buffer_end, __middle, __last,
         __first, __comp);
 }
      else if (__len2 <= __buffer_size)
 {
   _Pointer __buffer_end = std::move(__middle, __last, __buffer);
   std::__move_merge_adaptive_backward(__first, __middle, __buffer,
           __buffer_end, __last, __comp);
 }
      else
 {
   _BidirectionalIterator __first_cut = __first;
   _BidirectionalIterator __second_cut = __middle;
   _Distance __len11 = 0;
   _Distance __len22 = 0;
   if (__len1 > __len2)
     {
       __len11 = __len1 / 2;
       std::advance(__first_cut, __len11);
       __second_cut
  = std::__lower_bound(__middle, __last, *__first_cut,
         __gnu_cxx::__ops::__iter_comp_val(__comp));
       __len22 = std::distance(__middle, __second_cut);
     }
   else
     {
       __len22 = __len2 / 2;
       std::advance(__second_cut, __len22);
       __first_cut
  = std::__upper_bound(__first, __middle, *__second_cut,
         __gnu_cxx::__ops::__val_comp_iter(__comp));
       __len11 = std::distance(__first, __first_cut);
     }

   _BidirectionalIterator __new_middle
     = std::__rotate_adaptive(__first_cut, __middle, __second_cut,
         __len1 - __len11, __len22, __buffer,
         __buffer_size);
   std::__merge_adaptive(__first, __first_cut, __new_middle, __len11,
    __len22, __buffer, __buffer_size, __comp);
   std::__merge_adaptive(__new_middle, __second_cut, __last,
    __len1 - __len11,
    __len2 - __len22, __buffer,
    __buffer_size, __comp);
 }
    }


  template<typename _BidirectionalIterator, typename _Distance,
    typename _Compare>
    void
    __merge_without_buffer(_BidirectionalIterator __first,
      _BidirectionalIterator __middle,
      _BidirectionalIterator __last,
      _Distance __len1, _Distance __len2,
      _Compare __comp)
    {
      if (__len1 == 0 || __len2 == 0)
 return;

      if (__len1 + __len2 == 2)
 {
   if (__comp(__middle, __first))
     std::iter_swap(__first, __middle);
   return;
 }

      _BidirectionalIterator __first_cut = __first;
      _BidirectionalIterator __second_cut = __middle;
      _Distance __len11 = 0;
      _Distance __len22 = 0;
      if (__len1 > __len2)
 {
   __len11 = __len1 / 2;
   std::advance(__first_cut, __len11);
   __second_cut
     = std::__lower_bound(__middle, __last, *__first_cut,
     __gnu_cxx::__ops::__iter_comp_val(__comp));
   __len22 = std::distance(__middle, __second_cut);
 }
      else
 {
   __len22 = __len2 / 2;
   std::advance(__second_cut, __len22);
   __first_cut
     = std::__upper_bound(__first, __middle, *__second_cut,
     __gnu_cxx::__ops::__val_comp_iter(__comp));
   __len11 = std::distance(__first, __first_cut);
 }

      _BidirectionalIterator __new_middle
 = std::rotate(__first_cut, __middle, __second_cut);
      std::__merge_without_buffer(__first, __first_cut, __new_middle,
      __len11, __len22, __comp);
      std::__merge_without_buffer(__new_middle, __second_cut, __last,
      __len1 - __len11, __len2 - __len22, __comp);
    }

  template<typename _BidirectionalIterator, typename _Compare>
    void
    __inplace_merge(_BidirectionalIterator __first,
      _BidirectionalIterator __middle,
      _BidirectionalIterator __last,
      _Compare __comp)
    {
      typedef typename iterator_traits<_BidirectionalIterator>::value_type
   _ValueType;
      typedef typename iterator_traits<_BidirectionalIterator>::difference_type
   _DistanceType;
      typedef _Temporary_buffer<_BidirectionalIterator, _ValueType> _TmpBuf;

      if (__first == __middle || __middle == __last)
 return;

      const _DistanceType __len1 = std::distance(__first, __middle);
      const _DistanceType __len2 = std::distance(__middle, __last);



      _TmpBuf __buf(__first, std::min(__len1, __len2));

      if (__buf.begin() == 0)
 std::__merge_without_buffer
   (__first, __middle, __last, __len1, __len2, __comp);
      else
 std::__merge_adaptive
   (__first, __middle, __last, __len1, __len2, __buf.begin(),
    _DistanceType(__buf.size()), __comp);
    }
# 2565 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator>
    inline void
    inplace_merge(_BidirectionalIterator __first,
    _BidirectionalIterator __middle,
    _BidirectionalIterator __last)
    {

     

     

      ;
      ;
      ;

      std::__inplace_merge(__first, __middle, __last,
      __gnu_cxx::__ops::__iter_less_iter());
    }
# 2606 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator, typename _Compare>
    inline void
    inplace_merge(_BidirectionalIterator __first,
    _BidirectionalIterator __middle,
    _BidirectionalIterator __last,
    _Compare __comp)
    {

     

     


      ;
      ;
      ;

      std::__inplace_merge(__first, __middle, __last,
      __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }



  template<typename _InputIterator, typename _OutputIterator,
    typename _Compare>
    _OutputIterator
    __move_merge(_InputIterator __first1, _InputIterator __last1,
   _InputIterator __first2, _InputIterator __last2,
   _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 {
   if (__comp(__first2, __first1))
     {
       *__result = std::move(*__first2);
       ++__first2;
     }
   else
     {
       *__result = std::move(*__first1);
       ++__first1;
     }
   ++__result;
 }
      return std::move(__first2, __last2, std::move(__first1, __last1, __result))

                  ;
    }

  template<typename _RandomAccessIterator1, typename _RandomAccessIterator2,
    typename _Distance, typename _Compare>
    void
    __merge_sort_loop(_RandomAccessIterator1 __first,
        _RandomAccessIterator1 __last,
        _RandomAccessIterator2 __result, _Distance __step_size,
        _Compare __comp)
    {
      const _Distance __two_step = 2 * __step_size;

      while (__last - __first >= __two_step)
 {
   __result = std::__move_merge(__first, __first + __step_size,
           __first + __step_size,
           __first + __two_step,
           __result, __comp);
   __first += __two_step;
 }
      __step_size = std::min(_Distance(__last - __first), __step_size);

      std::__move_merge(__first, __first + __step_size,
   __first + __step_size, __last, __result, __comp);
    }

  template<typename _RandomAccessIterator, typename _Distance,
    typename _Compare>
   
    void
    __chunk_insertion_sort(_RandomAccessIterator __first,
      _RandomAccessIterator __last,
      _Distance __chunk_size, _Compare __comp)
    {
      while (__last - __first >= __chunk_size)
 {
   std::__insertion_sort(__first, __first + __chunk_size, __comp);
   __first += __chunk_size;
 }
      std::__insertion_sort(__first, __last, __comp);
    }

  enum { _S_chunk_size = 7 };

  template<typename _RandomAccessIterator, typename _Pointer, typename _Compare>
    void
    __merge_sort_with_buffer(_RandomAccessIterator __first,
        _RandomAccessIterator __last,
        _Pointer __buffer, _Compare __comp)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
 _Distance;

      const _Distance __len = __last - __first;
      const _Pointer __buffer_last = __buffer + __len;

      _Distance __step_size = _S_chunk_size;
      std::__chunk_insertion_sort(__first, __last, __step_size, __comp);

      while (__step_size < __len)
 {
   std::__merge_sort_loop(__first, __last, __buffer,
     __step_size, __comp);
   __step_size *= 2;
   std::__merge_sort_loop(__buffer, __buffer_last, __first,
     __step_size, __comp);
   __step_size *= 2;
 }
    }

  template<typename _RandomAccessIterator, typename _Pointer,
    typename _Distance, typename _Compare>
    void
    __stable_sort_adaptive(_RandomAccessIterator __first,
      _RandomAccessIterator __last,
      _Pointer __buffer, _Distance __buffer_size,
      _Compare __comp)
    {
      const _Distance __len = (__last - __first + 1) / 2;
      const _RandomAccessIterator __middle = __first + __len;
      if (__len > __buffer_size)
 {
   std::__stable_sort_adaptive(__first, __middle, __buffer,
          __buffer_size, __comp);
   std::__stable_sort_adaptive(__middle, __last, __buffer,
          __buffer_size, __comp);
 }
      else
 {
   std::__merge_sort_with_buffer(__first, __middle, __buffer, __comp);
   std::__merge_sort_with_buffer(__middle, __last, __buffer, __comp);
 }

      std::__merge_adaptive(__first, __middle, __last,
       _Distance(__middle - __first),
       _Distance(__last - __middle),
       __buffer, __buffer_size,
       __comp);
    }


  template<typename _RandomAccessIterator, typename _Compare>
    void
    __inplace_stable_sort(_RandomAccessIterator __first,
     _RandomAccessIterator __last, _Compare __comp)
    {
      if (__last - __first < 15)
 {
   std::__insertion_sort(__first, __last, __comp);
   return;
 }
      _RandomAccessIterator __middle = __first + (__last - __first) / 2;
      std::__inplace_stable_sort(__first, __middle, __comp);
      std::__inplace_stable_sort(__middle, __last, __comp);
      std::__merge_without_buffer(__first, __middle, __last,
      __middle - __first,
      __last - __middle,
      __comp);
    }
# 2780 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _Compare>
   
    bool
    __includes(_InputIterator1 __first1, _InputIterator1 __last1,
        _InputIterator2 __first2, _InputIterator2 __last2,
        _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 {
   if (__comp(__first2, __first1))
     return false;
   if (!__comp(__first1, __first2))
     ++__first2;
   ++__first1;
 }

      return __first2 == __last2;
    }
# 2818 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2>
   
    inline bool
    includes(_InputIterator1 __first1, _InputIterator1 __last1,
      _InputIterator2 __first2, _InputIterator2 __last2)
    {

     
     
     


     


      ;
      ;
      ;
      ;

      return std::__includes(__first1, __last1, __first2, __last2,
        __gnu_cxx::__ops::__iter_less_iter());
    }
# 2863 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _Compare>
   
    inline bool
    includes(_InputIterator1 __first1, _InputIterator1 __last1,
      _InputIterator2 __first2, _InputIterator2 __last2,
      _Compare __comp)
    {

     
     
     


     


      ;
      ;
      ;
      ;

      return std::__includes(__first1, __last1, __first2, __last2,
        __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 2899 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator, typename _Compare>
   
    bool
    __next_permutation(_BidirectionalIterator __first,
         _BidirectionalIterator __last, _Compare __comp)
    {
      if (__first == __last)
 return false;
      _BidirectionalIterator __i = __first;
      ++__i;
      if (__i == __last)
 return false;
      __i = __last;
      --__i;

      for(;;)
 {
   _BidirectionalIterator __ii = __i;
   --__i;
   if (__comp(__i, __ii))
     {
       _BidirectionalIterator __j = __last;
       while (!__comp(__i, --__j))
  {}
       std::iter_swap(__i, __j);
       std::__reverse(__ii, __last,
        std::__iterator_category(__first));
       return true;
     }
   if (__i == __first)
     {
       std::__reverse(__first, __last,
        std::__iterator_category(__first));
       return false;
     }
 }
    }
# 2949 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator>
   
    inline bool
    next_permutation(_BidirectionalIterator __first,
       _BidirectionalIterator __last)
    {

     

     

      ;
      ;

      return std::__next_permutation
 (__first, __last, __gnu_cxx::__ops::__iter_less_iter());
    }
# 2982 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator, typename _Compare>
   
    inline bool
    next_permutation(_BidirectionalIterator __first,
       _BidirectionalIterator __last, _Compare __comp)
    {

     

     


      ;
      ;

      return std::__next_permutation
 (__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _BidirectionalIterator, typename _Compare>
   
    bool
    __prev_permutation(_BidirectionalIterator __first,
         _BidirectionalIterator __last, _Compare __comp)
    {
      if (__first == __last)
 return false;
      _BidirectionalIterator __i = __first;
      ++__i;
      if (__i == __last)
 return false;
      __i = __last;
      --__i;

      for(;;)
 {
   _BidirectionalIterator __ii = __i;
   --__i;
   if (__comp(__ii, __i))
     {
       _BidirectionalIterator __j = __last;
       while (!__comp(--__j, __i))
  {}
       std::iter_swap(__i, __j);
       std::__reverse(__ii, __last,
        std::__iterator_category(__first));
       return true;
     }
   if (__i == __first)
     {
       std::__reverse(__first, __last,
        std::__iterator_category(__first));
       return false;
     }
 }
    }
# 3052 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator>
   
    inline bool
    prev_permutation(_BidirectionalIterator __first,
       _BidirectionalIterator __last)
    {

     

     

      ;
      ;

      return std::__prev_permutation(__first, __last,
         __gnu_cxx::__ops::__iter_less_iter());
    }
# 3085 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _BidirectionalIterator, typename _Compare>
   
    inline bool
    prev_permutation(_BidirectionalIterator __first,
       _BidirectionalIterator __last, _Compare __comp)
    {

     

     


      ;
      ;

      return std::__prev_permutation(__first, __last,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }




  template<typename _InputIterator, typename _OutputIterator,
    typename _Predicate, typename _Tp>
   
    _OutputIterator
    __replace_copy_if(_InputIterator __first, _InputIterator __last,
        _OutputIterator __result,
        _Predicate __pred, const _Tp& __new_value)
    {
      for (; __first != __last; ++__first, (void)++__result)
 if (__pred(__first))
   *__result = __new_value;
 else
   *__result = *__first;
      return __result;
    }
# 3137 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator, typename _Tp>
   
    inline _OutputIterator
    replace_copy(_InputIterator __first, _InputIterator __last,
   _OutputIterator __result,
   const _Tp& __old_value, const _Tp& __new_value)
    {

     
     

     

      ;

      return std::__replace_copy_if(__first, __last, __result,
   __gnu_cxx::__ops::__iter_equals_val(__old_value),
           __new_value);
    }
# 3172 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator,
    typename _Predicate, typename _Tp>
   
    inline _OutputIterator
    replace_copy_if(_InputIterator __first, _InputIterator __last,
      _OutputIterator __result,
      _Predicate __pred, const _Tp& __new_value)
    {

     
     

     

      ;

      return std::__replace_copy_if(__first, __last, __result,
    __gnu_cxx::__ops::__pred_iter(__pred),
           __new_value);
    }
# 3201 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline bool
    is_sorted(_ForwardIterator __first, _ForwardIterator __last)
    { return std::is_sorted_until(__first, __last) == __last; }
# 3216 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Compare>
   
    inline bool
    is_sorted(_ForwardIterator __first, _ForwardIterator __last,
       _Compare __comp)
    { return std::is_sorted_until(__first, __last, __comp) == __last; }

  template<typename _ForwardIterator, typename _Compare>
   
    _ForwardIterator
    __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last,
        _Compare __comp)
    {
      if (__first == __last)
 return __last;

      _ForwardIterator __next = __first;
      for (++__next; __next != __last; __first = __next, (void)++__next)
 if (__comp(__next, __first))
   return __next;
      return __next;
    }
# 3247 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline _ForwardIterator
    is_sorted_until(_ForwardIterator __first, _ForwardIterator __last)
    {

     
     

      ;
      ;

      return std::__is_sorted_until(__first, __last,
        __gnu_cxx::__ops::__iter_less_iter());
    }
# 3272 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Compare>
   
    inline _ForwardIterator
    is_sorted_until(_ForwardIterator __first, _ForwardIterator __last,
      _Compare __comp)
    {

     
     


      ;
      ;

      return std::__is_sorted_until(__first, __last,
        __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 3298 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _Tp>
   
    inline pair<const _Tp&, const _Tp&>
    minmax(const _Tp& __a, const _Tp& __b)
    {

     

      return __b < __a ? pair<const _Tp&, const _Tp&>(__b, __a)
         : pair<const _Tp&, const _Tp&>(__a, __b);
    }
# 3319 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _Tp, typename _Compare>
   
    inline pair<const _Tp&, const _Tp&>
    minmax(const _Tp& __a, const _Tp& __b, _Compare __comp)
    {
      return __comp(__b, __a) ? pair<const _Tp&, const _Tp&>(__b, __a)
         : pair<const _Tp&, const _Tp&>(__a, __b);
    }

  template<typename _ForwardIterator, typename _Compare>
   
    pair<_ForwardIterator, _ForwardIterator>
    __minmax_element(_ForwardIterator __first, _ForwardIterator __last,
       _Compare __comp)
    {
      _ForwardIterator __next = __first;
      if (__first == __last
   || ++__next == __last)
 return std::make_pair(__first, __first);

      _ForwardIterator __min{}, __max{};
      if (__comp(__next, __first))
 {
   __min = __next;
   __max = __first;
 }
      else
 {
   __min = __first;
   __max = __next;
 }

      __first = __next;
      ++__first;

      while (__first != __last)
 {
   __next = __first;
   if (++__next == __last)
     {
       if (__comp(__first, __min))
  __min = __first;
       else if (!__comp(__first, __max))
  __max = __first;
       break;
     }

   if (__comp(__next, __first))
     {
       if (__comp(__next, __min))
  __min = __next;
       if (!__comp(__first, __max))
  __max = __first;
     }
   else
     {
       if (__comp(__first, __min))
  __min = __first;
       if (!__comp(__next, __max))
  __max = __next;
     }

   __first = __next;
   ++__first;
 }

      return std::make_pair(__min, __max);
    }
# 3399 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline pair<_ForwardIterator, _ForwardIterator>
    minmax_element(_ForwardIterator __first, _ForwardIterator __last)
    {

     
     

      ;
      ;

      return std::__minmax_element(__first, __last,
       __gnu_cxx::__ops::__iter_less_iter());
    }
# 3427 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Compare>
   
    inline pair<_ForwardIterator, _ForwardIterator>
    minmax_element(_ForwardIterator __first, _ForwardIterator __last,
     _Compare __comp)
    {

     
     


      ;
      ;

      return std::__minmax_element(__first, __last,
       __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }


  template<typename _Tp>
   
    inline _Tp
    min(initializer_list<_Tp> __l)
    { return *std::min_element(__l.begin(), __l.end()); }

  template<typename _Tp, typename _Compare>
   
    inline _Tp
    min(initializer_list<_Tp> __l, _Compare __comp)
    { return *std::min_element(__l.begin(), __l.end(), __comp); }

  template<typename _Tp>
   
    inline _Tp
    max(initializer_list<_Tp> __l)
    { return *std::max_element(__l.begin(), __l.end()); }

  template<typename _Tp, typename _Compare>
   
    inline _Tp
    max(initializer_list<_Tp> __l, _Compare __comp)
    { return *std::max_element(__l.begin(), __l.end(), __comp); }

  template<typename _Tp>
   
    inline pair<_Tp, _Tp>
    minmax(initializer_list<_Tp> __l)
    {
      pair<const _Tp*, const _Tp*> __p =
 std::minmax_element(__l.begin(), __l.end());
      return std::make_pair(*__p.first, *__p.second);
    }

  template<typename _Tp, typename _Compare>
   
    inline pair<_Tp, _Tp>
    minmax(initializer_list<_Tp> __l, _Compare __comp)
    {
      pair<const _Tp*, const _Tp*> __p =
 std::minmax_element(__l.begin(), __l.end(), __comp);
      return std::make_pair(*__p.first, *__p.second);
    }
# 3504 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    inline bool
    is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
     _ForwardIterator2 __first2, _BinaryPredicate __pred)
    {

     
     
     


      ;

      return std::__is_permutation(__first1, __last1, __first2,
       __gnu_cxx::__ops::__iter_comp_iter(__pred));
    }
# 3704 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _IntType, typename _UniformRandomBitGenerator>
    pair<_IntType, _IntType>
    __gen_two_uniform_ints(_IntType __b0, _IntType __b1,
      _UniformRandomBitGenerator&& __g)
    {
      _IntType __x
 = uniform_int_distribution<_IntType>{0, (__b0 * __b1) - 1}(__g);
      return std::make_pair(__x / __b1, __x % __b1);
    }
# 3726 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator,
    typename _UniformRandomNumberGenerator>
    void
    shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last,
     _UniformRandomNumberGenerator&& __g)
    {

     

      ;

      if (__first == __last)
 return;

      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
 _DistanceType;

      typedef typename std::make_unsigned<_DistanceType>::type __ud_type;
      typedef typename std::uniform_int_distribution<__ud_type> __distr_type;
      typedef typename __distr_type::param_type __p_type;

      typedef typename remove_reference<_UniformRandomNumberGenerator>::type
 _Gen;
      typedef typename common_type<typename _Gen::result_type, __ud_type>::type
 __uc_type;

      const __uc_type __urngrange = __g.max() - __g.min();
      const __uc_type __urange = __uc_type(__last - __first);

      if (__urngrange / __urange >= __urange)

      {
 _RandomAccessIterator __i = __first + 1;





 if ((__urange % 2) == 0)
 {
   __distr_type __d{0, 1};
   std::iter_swap(__i++, __first + __d(__g));
 }





 while (__i != __last)
 {
   const __uc_type __swap_range = __uc_type(__i - __first) + 1;

   const pair<__uc_type, __uc_type> __pospos =
     __gen_two_uniform_ints(__swap_range, __swap_range + 1, __g);

   std::iter_swap(__i++, __first + __pospos.first);
   std::iter_swap(__i++, __first + __pospos.second);
 }

 return;
      }

      __distr_type __d;

      for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
 std::iter_swap(__i, __first + __d(__g, __p_type(0, __i - __first)));
    }





# 3811 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Function>
   
    _Function
    for_each(_InputIterator __first, _InputIterator __last, _Function __f)
    {

     
      ;
      for (; __first != __last; ++__first)
 __f(*__first);
      return __f;
    }
# 3873 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Tp>
   
    inline _InputIterator
    find(_InputIterator __first, _InputIterator __last,
  const _Tp& __val)
    {

     
     

      ;
      return std::__find_if(__first, __last,
       __gnu_cxx::__ops::__iter_equals_val(__val));
    }
# 3898 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline _InputIterator
    find_if(_InputIterator __first, _InputIterator __last,
     _Predicate __pred)
    {

     
     

      ;

      return std::__find_if(__first, __last,
       __gnu_cxx::__ops::__pred_iter(__pred));
    }
# 3930 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _ForwardIterator>
   
    _InputIterator
    find_first_of(_InputIterator __first1, _InputIterator __last1,
    _ForwardIterator __first2, _ForwardIterator __last2)
    {

     
     
     


      ;
      ;

      for (; __first1 != __last1; ++__first1)
 for (_ForwardIterator __iter = __first2; __iter != __last2; ++__iter)
   if (*__first1 == *__iter)
     return __first1;
      return __last1;
    }
# 3971 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _ForwardIterator,
    typename _BinaryPredicate>
   
    _InputIterator
    find_first_of(_InputIterator __first1, _InputIterator __last1,
    _ForwardIterator __first2, _ForwardIterator __last2,
    _BinaryPredicate __comp)
    {

     
     
     


      ;
      ;

      for (; __first1 != __last1; ++__first1)
 for (_ForwardIterator __iter = __first2; __iter != __last2; ++__iter)
   if (__comp(*__first1, *__iter))
     return __first1;
      return __last1;
    }
# 4004 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline _ForwardIterator
    adjacent_find(_ForwardIterator __first, _ForwardIterator __last)
    {

     
     

      ;

      return std::__adjacent_find(__first, __last,
      __gnu_cxx::__ops::__iter_equal_to_iter());
    }
# 4030 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _BinaryPredicate>
   
    inline _ForwardIterator
    adjacent_find(_ForwardIterator __first, _ForwardIterator __last,
    _BinaryPredicate __binary_pred)
    {

     
     


      ;

      return std::__adjacent_find(__first, __last,
   __gnu_cxx::__ops::__iter_comp_iter(__binary_pred));
    }
# 4056 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Tp>
   
    inline typename iterator_traits<_InputIterator>::difference_type
    count(_InputIterator __first, _InputIterator __last, const _Tp& __value)
    {

     
     

      ;

      return std::__count_if(__first, __last,
        __gnu_cxx::__ops::__iter_equals_val(__value));
    }
# 4080 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _Predicate>
   
    inline typename iterator_traits<_InputIterator>::difference_type
    count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred)
    {

     
     

      ;

      return std::__count_if(__first, __last,
        __gnu_cxx::__ops::__pred_iter(__pred));
    }
# 4121 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2>
   
    inline _ForwardIterator1
    search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
    _ForwardIterator2 __first2, _ForwardIterator2 __last2)
    {

     
     
     


      ;
      ;

      return std::__search(__first1, __last1, __first2, __last2,
      __gnu_cxx::__ops::__iter_equal_to_iter());
    }
# 4161 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator1, typename _ForwardIterator2,
    typename _BinaryPredicate>
   
    inline _ForwardIterator1
    search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
    _ForwardIterator2 __first2, _ForwardIterator2 __last2,
    _BinaryPredicate __predicate)
    {

     
     
     


      ;
      ;

      return std::__search(__first1, __last1, __first2, __last2,
      __gnu_cxx::__ops::__iter_comp_iter(__predicate));
    }
# 4197 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Integer, typename _Tp>
   
    inline _ForwardIterator
    search_n(_ForwardIterator __first, _ForwardIterator __last,
      _Integer __count, const _Tp& __val)
    {

     
     

      ;

      return std::__search_n(__first, __last, __count,
        __gnu_cxx::__ops::__iter_equals_val(__val));
    }
# 4231 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Integer, typename _Tp,
    typename _BinaryPredicate>
   
    inline _ForwardIterator
    search_n(_ForwardIterator __first, _ForwardIterator __last,
      _Integer __count, const _Tp& __val,
      _BinaryPredicate __binary_pred)
    {

     
     

      ;

      return std::__search_n(__first, __last, __count,
  __gnu_cxx::__ops::__iter_comp_val(__binary_pred, __val));
    }
# 4281 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator,
    typename _UnaryOperation>
   
    _OutputIterator
    transform(_InputIterator __first, _InputIterator __last,
       _OutputIterator __result, _UnaryOperation __unary_op)
    {

     
     


      ;

      for (; __first != __last; ++__first, (void)++__result)
 *__result = __unary_op(*__first);
      return __result;
    }
# 4319 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _BinaryOperation>
   
    _OutputIterator
    transform(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _OutputIterator __result,
       _BinaryOperation __binary_op)
    {

     
     
     


      ;

      for (; __first1 != __last1; ++__first1, (void)++__first2, ++__result)
 *__result = __binary_op(*__first1, *__first2);
      return __result;
    }
# 4353 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Tp>
   
    void
    replace(_ForwardIterator __first, _ForwardIterator __last,
     const _Tp& __old_value, const _Tp& __new_value)
    {

     

     

     

      ;

      for (; __first != __last; ++__first)
 if (*__first == __old_value)
   *__first = __new_value;
    }
# 4386 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Predicate, typename _Tp>
   
    void
    replace_if(_ForwardIterator __first, _ForwardIterator __last,
        _Predicate __pred, const _Tp& __new_value)
    {

     

     

     

      ;

      for (; __first != __last; ++__first)
 if (__pred(*__first))
   *__first = __new_value;
    }
# 4419 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Generator>
   
    void
    generate(_ForwardIterator __first, _ForwardIterator __last,
      _Generator __gen)
    {

     
     

      ;

      for (; __first != __last; ++__first)
 *__first = __gen();
    }
# 4453 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _OutputIterator, typename _Size, typename _Generator>
   
    _OutputIterator
    generate_n(_OutputIterator __first, _Size __n, _Generator __gen)
    {

     



      typedef __decltype(std::__size_to_integer(__n)) _IntSize;
      for (_IntSize __niter = std::__size_to_integer(__n);
    __niter > 0; --__niter, (void) ++__first)
 *__first = __gen();
      return __first;
    }
# 4491 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator>
   
    inline _OutputIterator
    unique_copy(_InputIterator __first, _InputIterator __last,
  _OutputIterator __result)
    {

     
     

     

      ;

      if (__first == __last)
 return __result;
      return std::__unique_copy(__first, __last, __result,
    __gnu_cxx::__ops::__iter_equal_to_iter(),
    std::__iterator_category(__first),
    std::__iterator_category(__result));
    }
# 4532 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator, typename _OutputIterator,
    typename _BinaryPredicate>
   
    inline _OutputIterator
    unique_copy(_InputIterator __first, _InputIterator __last,
  _OutputIterator __result,
  _BinaryPredicate __binary_pred)
    {

     
     

      ;

      if (__first == __last)
 return __result;
      return std::__unique_copy(__first, __last, __result,
   __gnu_cxx::__ops::__iter_comp_iter(__binary_pred),
    std::__iterator_category(__first),
    std::__iterator_category(__result));
    }
# 4566 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator>
    inline void
    random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

      ;

      if (__first != __last)
 for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
   {

     _RandomAccessIterator __j = __first
     + std::rand() % ((__i - __first) + 1);
     if (__i != __j)
       std::iter_swap(__i, __j);
   }
    }
# 4601 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator, typename _RandomNumberGenerator>
    void
    random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last,

     _RandomNumberGenerator&& __rand)



    {

     

      ;

      if (__first == __last)
 return;
      for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
 {
   _RandomAccessIterator __j = __first + __rand((__i - __first) + 1);
   if (__i != __j)
     std::iter_swap(__i, __j);
 }
    }
# 4641 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Predicate>
   
    inline _ForwardIterator
    partition(_ForwardIterator __first, _ForwardIterator __last,
       _Predicate __pred)
    {

     

     

      ;

      return std::__partition(__first, __last, __pred,
         std::__iterator_category(__first));
    }
# 4675 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    partial_sort(_RandomAccessIterator __first,
   _RandomAccessIterator __middle,
   _RandomAccessIterator __last)
    {

     

     

      ;
      ;
      ;

      std::__partial_sort(__first, __middle, __last,
     __gnu_cxx::__ops::__iter_less_iter());
    }
# 4714 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    partial_sort(_RandomAccessIterator __first,
   _RandomAccessIterator __middle,
   _RandomAccessIterator __last,
   _Compare __comp)
    {

     

     


      ;
      ;
      ;

      std::__partial_sort(__first, __middle, __last,
     __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 4751 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth,
  _RandomAccessIterator __last)
    {

     

     

      ;
      ;
      ;

      if (__first == __last || __nth == __last)
 return;

      std::__introselect(__first, __nth, __last,
    std::__lg(__last - __first) * 2,
    __gnu_cxx::__ops::__iter_less_iter());
    }
# 4791 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth,
  _RandomAccessIterator __last, _Compare __comp)
    {

     

     


      ;
      ;
      ;

      if (__first == __last || __nth == __last)
 return;

      std::__introselect(__first, __nth, __last,
    std::__lg(__last - __first) * 2,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 4829 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator>
   
    inline void
    sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      ;
      ;

      std::__sort(__first, __last, __gnu_cxx::__ops::__iter_less_iter());
    }
# 4860 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
   
    inline void
    sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
  _Compare __comp)
    {

     

     


      ;
      ;

      std::__sort(__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    _OutputIterator
    __merge(_InputIterator1 __first1, _InputIterator1 __last1,
     _InputIterator2 __first2, _InputIterator2 __last2,
     _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 {
   if (__comp(__first2, __first1))
     {
       *__result = *__first2;
       ++__first2;
     }
   else
     {
       *__result = *__first1;
       ++__first1;
     }
   ++__result;
 }
      return std::copy(__first2, __last2,
         std::copy(__first1, __last1, __result));
    }
# 4923 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator>
   
    inline _OutputIterator
    merge(_InputIterator1 __first1, _InputIterator1 __last1,
   _InputIterator2 __first2, _InputIterator2 __last2,
   _OutputIterator __result)
    {

     
     
     

     

     


      ;
      ;
      ;
      ;

      return std::__merge(__first1, __last1,
         __first2, __last2, __result,
         __gnu_cxx::__ops::__iter_less_iter());
    }
# 4974 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    inline _OutputIterator
    merge(_InputIterator1 __first1, _InputIterator1 __last1,
   _InputIterator2 __first2, _InputIterator2 __last2,
   _OutputIterator __result, _Compare __comp)
    {

     
     
     

     

     


      ;
      ;
      ;
      ;

      return std::__merge(__first1, __last1,
    __first2, __last2, __result,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _RandomAccessIterator, typename _Compare>
    inline void
    __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
    _Compare __comp)
    {
      typedef typename iterator_traits<_RandomAccessIterator>::value_type
 _ValueType;
      typedef typename iterator_traits<_RandomAccessIterator>::difference_type
 _DistanceType;
      typedef _Temporary_buffer<_RandomAccessIterator, _ValueType> _TmpBuf;

      if (__first == __last)
 return;



      _TmpBuf __buf(__first, (__last - __first + 1) / 2);

      if (__buf.begin() == 0)
 std::__inplace_stable_sort(__first, __last, __comp);
      else
 std::__stable_sort_adaptive(__first, __last, __buf.begin(),
        _DistanceType(__buf.size()), __comp);
    }
# 5044 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator>
    inline void
    stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
    {

     

     

      ;
      ;

      std::__stable_sort(__first, __last,
        __gnu_cxx::__ops::__iter_less_iter());
    }
# 5078 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _RandomAccessIterator, typename _Compare>
    inline void
    stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
  _Compare __comp)
    {

     

     


      ;
      ;

      std::__stable_sort(__first, __last,
        __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator,
    typename _Compare>
   
    _OutputIterator
    __set_union(_InputIterator1 __first1, _InputIterator1 __last1,
  _InputIterator2 __first2, _InputIterator2 __last2,
  _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 {
   if (__comp(__first1, __first2))
     {
       *__result = *__first1;
       ++__first1;
     }
   else if (__comp(__first2, __first1))
     {
       *__result = *__first2;
       ++__first2;
     }
   else
     {
       *__result = *__first1;
       ++__first1;
       ++__first2;
     }
   ++__result;
 }
      return std::copy(__first2, __last2,
         std::copy(__first1, __last1, __result));
    }
# 5148 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator>
   
    inline _OutputIterator
    set_union(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _InputIterator2 __last2,
       _OutputIterator __result)
    {

     
     
     

     

     


     


      ;
      ;
      ;
      ;

      return std::__set_union(__first1, __last1,
    __first2, __last2, __result,
    __gnu_cxx::__ops::__iter_less_iter());
    }
# 5199 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    inline _OutputIterator
    set_union(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _InputIterator2 __last2,
       _OutputIterator __result, _Compare __comp)
    {

     
     
     

     

     


     


      ;
      ;
      ;
      ;

      return std::__set_union(__first1, __last1,
    __first2, __last2, __result,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator,
    typename _Compare>
   
    _OutputIterator
    __set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
         _InputIterator2 __first2, _InputIterator2 __last2,
         _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 if (__comp(__first1, __first2))
   ++__first1;
 else if (__comp(__first2, __first1))
   ++__first2;
 else
   {
     *__result = *__first1;
     ++__first1;
     ++__first2;
     ++__result;
   }
      return __result;
    }
# 5272 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator>
   
    inline _OutputIterator
    set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _InputIterator2 __last2,
       _OutputIterator __result)
    {

     
     
     

     


     


      ;
      ;
      ;
      ;

      return std::__set_intersection(__first1, __last1,
         __first2, __last2, __result,
         __gnu_cxx::__ops::__iter_less_iter());
    }
# 5322 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    inline _OutputIterator
    set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _InputIterator2 __last2,
       _OutputIterator __result, _Compare __comp)
    {

     
     
     

     


     


      ;
      ;
      ;
      ;

      return std::__set_intersection(__first1, __last1,
    __first2, __last2, __result,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator,
    typename _Compare>
   
    _OutputIterator
    __set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
       _InputIterator2 __first2, _InputIterator2 __last2,
       _OutputIterator __result, _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 if (__comp(__first1, __first2))
   {
     *__result = *__first1;
     ++__first1;
     ++__result;
   }
 else if (__comp(__first2, __first1))
   ++__first2;
 else
   {
     ++__first1;
     ++__first2;
   }
      return std::copy(__first1, __last1, __result);
    }
# 5397 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator>
   
    inline _OutputIterator
    set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
     _InputIterator2 __first2, _InputIterator2 __last2,
     _OutputIterator __result)
    {

     
     
     

     


     


      ;
      ;
      ;
      ;

      return std::__set_difference(__first1, __last1,
       __first2, __last2, __result,
       __gnu_cxx::__ops::__iter_less_iter());
    }
# 5449 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    inline _OutputIterator
    set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
     _InputIterator2 __first2, _InputIterator2 __last2,
     _OutputIterator __result, _Compare __comp)
    {

     
     
     

     


     


      ;
      ;
      ;
      ;

      return std::__set_difference(__first1, __last1,
       __first2, __last2, __result,
       __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator,
    typename _Compare>
   
    _OutputIterator
    __set_symmetric_difference(_InputIterator1 __first1,
          _InputIterator1 __last1,
          _InputIterator2 __first2,
          _InputIterator2 __last2,
          _OutputIterator __result,
          _Compare __comp)
    {
      while (__first1 != __last1 && __first2 != __last2)
 if (__comp(__first1, __first2))
   {
     *__result = *__first1;
     ++__first1;
     ++__result;
   }
 else if (__comp(__first2, __first1))
   {
     *__result = *__first2;
     ++__first2;
     ++__result;
   }
 else
   {
     ++__first1;
     ++__first2;
   }
      return std::copy(__first2, __last2,
         std::copy(__first1, __last1, __result));
    }
# 5530 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator>
   
    inline _OutputIterator
    set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1,
        _InputIterator2 __first2, _InputIterator2 __last2,
        _OutputIterator __result)
    {

     
     
     

     

     


     


      ;
      ;
      ;
      ;

      return std::__set_symmetric_difference(__first1, __last1,
     __first2, __last2, __result,
     __gnu_cxx::__ops::__iter_less_iter());
    }
# 5582 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _InputIterator1, typename _InputIterator2,
    typename _OutputIterator, typename _Compare>
   
    inline _OutputIterator
    set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1,
        _InputIterator2 __first2, _InputIterator2 __last2,
        _OutputIterator __result,
        _Compare __comp)
    {

     
     
     

     

     


     


      ;
      ;
      ;
      ;

      return std::__set_symmetric_difference(__first1, __last1,
    __first2, __last2, __result,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _ForwardIterator, typename _Compare>
   
    _ForwardIterator
    __min_element(_ForwardIterator __first, _ForwardIterator __last,
    _Compare __comp)
    {
      if (__first == __last)
 return __first;
      _ForwardIterator __result = __first;
      while (++__first != __last)
 if (__comp(__first, __result))
   __result = __first;
      return __result;
    }
# 5636 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    _ForwardIterator
    inline min_element(_ForwardIterator __first, _ForwardIterator __last)
    {

     
     

      ;
      ;

      return std::__min_element(__first, __last,
    __gnu_cxx::__ops::__iter_less_iter());
    }
# 5661 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Compare>
   
    inline _ForwardIterator
    min_element(_ForwardIterator __first, _ForwardIterator __last,
  _Compare __comp)
    {

     
     


      ;
      ;

      return std::__min_element(__first, __last,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }

  template<typename _ForwardIterator, typename _Compare>
   
    _ForwardIterator
    __max_element(_ForwardIterator __first, _ForwardIterator __last,
    _Compare __comp)
    {
      if (__first == __last) return __first;
      _ForwardIterator __result = __first;
      while (++__first != __last)
 if (__comp(__result, __first))
   __result = __first;
      return __result;
    }
# 5700 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator>
   
    inline _ForwardIterator
    max_element(_ForwardIterator __first, _ForwardIterator __last)
    {

     
     

      ;
      ;

      return std::__max_element(__first, __last,
    __gnu_cxx::__ops::__iter_less_iter());
    }
# 5725 "/usr/include/c++/11/bits/stl_algo.h" 3
  template<typename _ForwardIterator, typename _Compare>
   
    inline _ForwardIterator
    max_element(_ForwardIterator __first, _ForwardIterator __last,
  _Compare __comp)
    {

     
     


      ;
      ;

      return std::__max_element(__first, __last,
    __gnu_cxx::__ops::__iter_comp_iter(__comp));
    }
# 5871 "/usr/include/c++/11/bits/stl_algo.h" 3


}
# 63 "/usr/include/c++/11/algorithm" 2 3
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h" 2


# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/bits.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/bits.h"
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/compiler_specific.h" 1
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/bits.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdarg.h" 1 3 4
# 99 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stdarg.h" 3 4
typedef __gnuc_va_list va_list;
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 2

# 1 "/usr/include/stdio.h" 1 3 4
# 27 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/libc-header-start.h" 1 3 4
# 28 "/usr/include/stdio.h" 2 3 4

extern "C" {



# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 34 "/usr/include/stdio.h" 2 3 4





# 1 "/usr/include/bits/types/__fpos_t.h" 1 3 4
# 10 "/usr/include/bits/types/__fpos_t.h" 3 4
typedef struct _G_fpos_t
{
  __off_t __pos;
  __mbstate_t __state;
} __fpos_t;
# 40 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/bits/types/__fpos64_t.h" 1 3 4
# 10 "/usr/include/bits/types/__fpos64_t.h" 3 4
typedef struct _G_fpos64_t
{
  __off64_t __pos;
  __mbstate_t __state;
} __fpos64_t;
# 41 "/usr/include/stdio.h" 2 3 4


# 1 "/usr/include/bits/types/struct_FILE.h" 1 3 4
# 35 "/usr/include/bits/types/struct_FILE.h" 3 4
struct _IO_FILE;
struct _IO_marker;
struct _IO_codecvt;
struct _IO_wide_data;




typedef void _IO_lock_t;





struct _IO_FILE
{
  int _flags;


  char *_IO_read_ptr;
  char *_IO_read_end;
  char *_IO_read_base;
  char *_IO_write_base;
  char *_IO_write_ptr;
  char *_IO_write_end;
  char *_IO_buf_base;
  char *_IO_buf_end;


  char *_IO_save_base;
  char *_IO_backup_base;
  char *_IO_save_end;

  struct _IO_marker *_markers;

  struct _IO_FILE *_chain;

  int _fileno;
  int _flags2;
  __off_t _old_offset;


  unsigned short _cur_column;
  signed char _vtable_offset;
  char _shortbuf[1];

  _IO_lock_t *_lock;







  __off64_t _offset;

  struct _IO_codecvt *_codecvt;
  struct _IO_wide_data *_wide_data;
  struct _IO_FILE *_freeres_list;
  void *_freeres_buf;
  size_t __pad5;
  int _mode;

  char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
};
# 44 "/usr/include/stdio.h" 2 3 4


# 1 "/usr/include/bits/types/cookie_io_functions_t.h" 1 3 4
# 27 "/usr/include/bits/types/cookie_io_functions_t.h" 3 4
typedef __ssize_t cookie_read_function_t (void *__cookie, char *__buf,
                                          size_t __nbytes);







typedef __ssize_t cookie_write_function_t (void *__cookie, const char *__buf,
                                           size_t __nbytes);







typedef int cookie_seek_function_t (void *__cookie, __off64_t *__pos, int __w);


typedef int cookie_close_function_t (void *__cookie);






typedef struct _IO_cookie_io_functions_t
{
  cookie_read_function_t *read;
  cookie_write_function_t *write;
  cookie_seek_function_t *seek;
  cookie_close_function_t *close;
} cookie_io_functions_t;
# 47 "/usr/include/stdio.h" 2 3 4
# 84 "/usr/include/stdio.h" 3 4
typedef __fpos_t fpos_t;




typedef __fpos64_t fpos64_t;
# 133 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio_lim.h" 1 3 4
# 134 "/usr/include/stdio.h" 2 3 4



extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;






extern int remove (const char *__filename) noexcept (true);

extern int rename (const char *__old, const char *__new) noexcept (true);



extern int renameat (int __oldfd, const char *__old, int __newfd,
       const char *__new) noexcept (true);
# 164 "/usr/include/stdio.h" 3 4
extern int renameat2 (int __oldfd, const char *__old, int __newfd,
        const char *__new, unsigned int __flags) noexcept (true);







extern FILE *tmpfile (void) __attribute__ ((__warn_unused_result__));
# 183 "/usr/include/stdio.h" 3 4
extern FILE *tmpfile64 (void) __attribute__ ((__warn_unused_result__));



extern char *tmpnam (char *__s) noexcept (true) __attribute__ ((__warn_unused_result__));




extern char *tmpnam_r (char *__s) noexcept (true) __attribute__ ((__warn_unused_result__));
# 204 "/usr/include/stdio.h" 3 4
extern char *tempnam (const char *__dir, const char *__pfx)
     noexcept (true) __attribute__ ((__malloc__)) __attribute__ ((__warn_unused_result__));







extern int fclose (FILE *__stream);




extern int fflush (FILE *__stream);
# 227 "/usr/include/stdio.h" 3 4
extern int fflush_unlocked (FILE *__stream);
# 237 "/usr/include/stdio.h" 3 4
extern int fcloseall (void);
# 246 "/usr/include/stdio.h" 3 4
extern FILE *fopen (const char *__restrict __filename,
      const char *__restrict __modes) __attribute__ ((__warn_unused_result__));




extern FILE *freopen (const char *__restrict __filename,
        const char *__restrict __modes,
        FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
# 270 "/usr/include/stdio.h" 3 4
extern FILE *fopen64 (const char *__restrict __filename,
        const char *__restrict __modes) __attribute__ ((__warn_unused_result__));
extern FILE *freopen64 (const char *__restrict __filename,
   const char *__restrict __modes,
   FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));




extern FILE *fdopen (int __fd, const char *__modes) noexcept (true) __attribute__ ((__warn_unused_result__));





extern FILE *fopencookie (void *__restrict __magic_cookie,
     const char *__restrict __modes,
     cookie_io_functions_t __io_funcs) noexcept (true) __attribute__ ((__warn_unused_result__));




extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)
  noexcept (true) __attribute__ ((__warn_unused_result__));




extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) noexcept (true) __attribute__ ((__warn_unused_result__));





extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) noexcept (true);



extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
      int __modes, size_t __n) noexcept (true);




extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
         size_t __size) noexcept (true);


extern void setlinebuf (FILE *__stream) noexcept (true);







extern int fprintf (FILE *__restrict __stream,
      const char *__restrict __format, ...);




extern int printf (const char *__restrict __format, ...);

extern int sprintf (char *__restrict __s,
      const char *__restrict __format, ...) noexcept (true);





extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,
       __gnuc_va_list __arg);




extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);

extern int vsprintf (char *__restrict __s, const char *__restrict __format,
       __gnuc_va_list __arg) noexcept (true);



extern int snprintf (char *__restrict __s, size_t __maxlen,
       const char *__restrict __format, ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 4)));

extern int vsnprintf (char *__restrict __s, size_t __maxlen,
        const char *__restrict __format, __gnuc_va_list __arg)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 0)));





extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,
        __gnuc_va_list __arg)
     noexcept (true) __attribute__ ((__format__ (__printf__, 2, 0))) __attribute__ ((__warn_unused_result__));
extern int __asprintf (char **__restrict __ptr,
         const char *__restrict __fmt, ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 2, 3))) __attribute__ ((__warn_unused_result__));
extern int asprintf (char **__restrict __ptr,
       const char *__restrict __fmt, ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 2, 3))) __attribute__ ((__warn_unused_result__));




extern int vdprintf (int __fd, const char *__restrict __fmt,
       __gnuc_va_list __arg)
     __attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, const char *__restrict __fmt, ...)
     __attribute__ ((__format__ (__printf__, 2, 3)));







extern int fscanf (FILE *__restrict __stream,
     const char *__restrict __format, ...) __attribute__ ((__warn_unused_result__));




extern int scanf (const char *__restrict __format, ...) __attribute__ ((__warn_unused_result__));

extern int sscanf (const char *__restrict __s,
     const char *__restrict __format, ...) noexcept (true);
# 410 "/usr/include/stdio.h" 3 4
extern int fscanf (FILE *__restrict __stream, const char *__restrict __format, ...) __asm__ ("" "__isoc99_fscanf")

                          __attribute__ ((__warn_unused_result__));
extern int scanf (const char *__restrict __format, ...) __asm__ ("" "__isoc99_scanf")
                         __attribute__ ((__warn_unused_result__));
extern int sscanf (const char *__restrict __s, const char *__restrict __format, ...) noexcept (true) __asm__ ("" "__isoc99_sscanf")

                      ;
# 435 "/usr/include/stdio.h" 3 4
extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,
      __gnuc_va_list __arg)
     __attribute__ ((__format__ (__scanf__, 2, 0))) __attribute__ ((__warn_unused_result__));





extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)
     __attribute__ ((__format__ (__scanf__, 1, 0))) __attribute__ ((__warn_unused_result__));


extern int vsscanf (const char *__restrict __s,
      const char *__restrict __format, __gnuc_va_list __arg)
     noexcept (true) __attribute__ ((__format__ (__scanf__, 2, 0)));





extern int vfscanf (FILE *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vfscanf")



     __attribute__ ((__format__ (__scanf__, 2, 0))) __attribute__ ((__warn_unused_result__));
extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vscanf")

     __attribute__ ((__format__ (__scanf__, 1, 0))) __attribute__ ((__warn_unused_result__));
extern int vsscanf (const char *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) noexcept (true) __asm__ ("" "__isoc99_vsscanf")



     __attribute__ ((__format__ (__scanf__, 2, 0)));
# 489 "/usr/include/stdio.h" 3 4
extern int fgetc (FILE *__stream);
extern int getc (FILE *__stream);





extern int getchar (void);






extern int getc_unlocked (FILE *__stream);
extern int getchar_unlocked (void);
# 514 "/usr/include/stdio.h" 3 4
extern int fgetc_unlocked (FILE *__stream);
# 525 "/usr/include/stdio.h" 3 4
extern int fputc (int __c, FILE *__stream);
extern int putc (int __c, FILE *__stream);





extern int putchar (int __c);
# 541 "/usr/include/stdio.h" 3 4
extern int fputc_unlocked (int __c, FILE *__stream);







extern int putc_unlocked (int __c, FILE *__stream);
extern int putchar_unlocked (int __c);






extern int getw (FILE *__stream);


extern int putw (int __w, FILE *__stream);







extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
     __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 2)));
# 581 "/usr/include/stdio.h" 3 4
extern char *gets (char *__s) __attribute__ ((__warn_unused_result__)) __attribute__ ((__deprecated__));
# 591 "/usr/include/stdio.h" 3 4
extern char *fgets_unlocked (char *__restrict __s, int __n,
        FILE *__restrict __stream) __attribute__ ((__warn_unused_result__))
    __attribute__ ((__access__ (__write_only__, 1, 2)));
# 608 "/usr/include/stdio.h" 3 4
extern __ssize_t __getdelim (char **__restrict __lineptr,
                             size_t *__restrict __n, int __delimiter,
                             FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
extern __ssize_t getdelim (char **__restrict __lineptr,
                           size_t *__restrict __n, int __delimiter,
                           FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));







extern __ssize_t getline (char **__restrict __lineptr,
                          size_t *__restrict __n,
                          FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));







extern int fputs (const char *__restrict __s, FILE *__restrict __stream);





extern int puts (const char *__s);






extern int ungetc (int __c, FILE *__stream);






extern size_t fread (void *__restrict __ptr, size_t __size,
       size_t __n, FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));




extern size_t fwrite (const void *__restrict __ptr, size_t __size,
        size_t __n, FILE *__restrict __s);
# 667 "/usr/include/stdio.h" 3 4
extern int fputs_unlocked (const char *__restrict __s,
      FILE *__restrict __stream);
# 678 "/usr/include/stdio.h" 3 4
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
         size_t __n, FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size,
          size_t __n, FILE *__restrict __stream);







extern int fseek (FILE *__stream, long int __off, int __whence);




extern long int ftell (FILE *__stream) __attribute__ ((__warn_unused_result__));




extern void rewind (FILE *__stream);
# 712 "/usr/include/stdio.h" 3 4
extern int fseeko (FILE *__stream, __off_t __off, int __whence);




extern __off_t ftello (FILE *__stream) __attribute__ ((__warn_unused_result__));
# 736 "/usr/include/stdio.h" 3 4
extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);




extern int fsetpos (FILE *__stream, const fpos_t *__pos);
# 755 "/usr/include/stdio.h" 3 4
extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
extern __off64_t ftello64 (FILE *__stream) __attribute__ ((__warn_unused_result__));
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
extern int fsetpos64 (FILE *__stream, const fpos64_t *__pos);



extern void clearerr (FILE *__stream) noexcept (true);

extern int feof (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));

extern int ferror (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));



extern void clearerr_unlocked (FILE *__stream) noexcept (true);
extern int feof_unlocked (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));
extern int ferror_unlocked (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));







extern void perror (const char *__s);




extern int fileno (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));




extern int fileno_unlocked (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));
# 799 "/usr/include/stdio.h" 3 4
extern FILE *popen (const char *__command, const char *__modes) __attribute__ ((__warn_unused_result__));





extern int pclose (FILE *__stream);





extern char *ctermid (char *__s) noexcept (true);





extern char *cuserid (char *__s);




struct obstack;


extern int obstack_printf (struct obstack *__restrict __obstack,
      const char *__restrict __format, ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 2, 3)));
extern int obstack_vprintf (struct obstack *__restrict __obstack,
       const char *__restrict __format,
       __gnuc_va_list __args)
     noexcept (true) __attribute__ ((__format__ (__printf__, 2, 0)));







extern void flockfile (FILE *__stream) noexcept (true);



extern int ftrylockfile (FILE *__stream) noexcept (true) __attribute__ ((__warn_unused_result__));


extern void funlockfile (FILE *__stream) noexcept (true);
# 857 "/usr/include/stdio.h" 3 4
extern int __uflow (FILE *);
extern int __overflow (FILE *, int);




# 1 "/usr/include/bits/stdio.h" 1 3 4
# 46 "/usr/include/bits/stdio.h" 3 4
extern __inline __attribute__ ((__gnu_inline__)) int
getchar (void)
{
  return getc (stdin);
}




extern __inline __attribute__ ((__gnu_inline__)) int
fgetc_unlocked (FILE *__fp)
{
  return (__builtin_expect (((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end), 0) ? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++);
}





extern __inline __attribute__ ((__gnu_inline__)) int
getc_unlocked (FILE *__fp)
{
  return (__builtin_expect (((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end), 0) ? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++);
}


extern __inline __attribute__ ((__gnu_inline__)) int
getchar_unlocked (void)
{
  return (__builtin_expect (((stdin)->_IO_read_ptr >= (stdin)->_IO_read_end), 0) ? __uflow (stdin) : *(unsigned char *) (stdin)->_IO_read_ptr++);
}




extern __inline __attribute__ ((__gnu_inline__)) int
putchar (int __c)
{
  return putc (__c, stdout);
}




extern __inline __attribute__ ((__gnu_inline__)) int
fputc_unlocked (int __c, FILE *__stream)
{
  return (__builtin_expect (((__stream)->_IO_write_ptr >= (__stream)->_IO_write_end), 0) ? __overflow (__stream, (unsigned char) (__c)) : (unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}





extern __inline __attribute__ ((__gnu_inline__)) int
putc_unlocked (int __c, FILE *__stream)
{
  return (__builtin_expect (((__stream)->_IO_write_ptr >= (__stream)->_IO_write_end), 0) ? __overflow (__stream, (unsigned char) (__c)) : (unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}


extern __inline __attribute__ ((__gnu_inline__)) int
putchar_unlocked (int __c)
{
  return (__builtin_expect (((stdout)->_IO_write_ptr >= (stdout)->_IO_write_end), 0) ? __overflow (stdout, (unsigned char) (__c)) : (unsigned char) (*(stdout)->_IO_write_ptr++ = (__c)));
}





extern __inline __attribute__ ((__gnu_inline__)) __ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream)
{
  return __getdelim (__lineptr, __n, '\n', __stream);
}





extern __inline __attribute__ ((__gnu_inline__)) int
__attribute__ ((__leaf__)) feof_unlocked (FILE *__stream) noexcept (true)
{
  return (((__stream)->_flags & 0x0010) != 0);
}


extern __inline __attribute__ ((__gnu_inline__)) int
__attribute__ ((__leaf__)) ferror_unlocked (FILE *__stream) noexcept (true)
{
  return (((__stream)->_flags & 0x0020) != 0);
}
# 864 "/usr/include/stdio.h" 2 3 4


# 1 "/usr/include/bits/stdio2.h" 1 3 4
# 26 "/usr/include/bits/stdio2.h" 3 4
extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
     const char *__restrict __format, ...) noexcept (true)
    __attribute__ ((__access__ (__write_only__, 1, 3)));
extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
      const char *__restrict __format,
      __gnuc_va_list __ap) noexcept (true)
    __attribute__ ((__access__ (__write_only__, 1, 3)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) sprintf (char *__restrict __s, const char *__restrict __fmt, ...) noexcept (true)
{
  return __builtin___sprintf_chk (__s, 2 - 1,
      __builtin_object_size (__s, 2 > 1), __fmt, __builtin_va_arg_pack ());
}






extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) vsprintf (char *__restrict __s, const char *__restrict __fmt, __gnuc_va_list __ap) noexcept (true)

{
  return __builtin___vsprintf_chk (__s, 2 - 1,
       __builtin_object_size (__s, 2 > 1), __fmt, __ap);
}



extern int __snprintf_chk (char *__restrict __s, size_t __n, int __flag,
      size_t __slen, const char *__restrict __format,
      ...) noexcept (true)
    __attribute__ ((__access__ (__write_only__, 1, 2)));
extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
       size_t __slen, const char *__restrict __format,
       __gnuc_va_list __ap) noexcept (true);


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) snprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, ...) noexcept (true)

{
  return __builtin___snprintf_chk (__s, __n, 2 - 1,
       __builtin_object_size (__s, 2 > 1), __fmt, __builtin_va_arg_pack ());
}






extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) vsnprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, __gnuc_va_list __ap) noexcept (true)

{
  return __builtin___vsnprintf_chk (__s, __n, 2 - 1,
        __builtin_object_size (__s, 2 > 1), __fmt, __ap);
}





extern int __fprintf_chk (FILE *__restrict __stream, int __flag,
     const char *__restrict __format, ...);
extern int __printf_chk (int __flag, const char *__restrict __format, ...);
extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
      const char *__restrict __format, __gnuc_va_list __ap);
extern int __vprintf_chk (int __flag, const char *__restrict __format,
     __gnuc_va_list __ap);


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
fprintf (FILE *__restrict __stream, const char *__restrict __fmt, ...)
{
  return __fprintf_chk (__stream, 2 - 1, __fmt,
   __builtin_va_arg_pack ());
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
printf (const char *__restrict __fmt, ...)
{
  return __printf_chk (2 - 1, __fmt, __builtin_va_arg_pack ());
}







extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
vprintf (const char *__restrict __fmt, __gnuc_va_list __ap)
{

  return __vfprintf_chk (stdout, 2 - 1, __fmt, __ap);



}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
vfprintf (FILE *__restrict __stream,
   const char *__restrict __fmt, __gnuc_va_list __ap)
{
  return __vfprintf_chk (__stream, 2 - 1, __fmt, __ap);
}


extern int __dprintf_chk (int __fd, int __flag, const char *__restrict __fmt,
     ...) __attribute__ ((__format__ (__printf__, 3, 4)));
extern int __vdprintf_chk (int __fd, int __flag,
      const char *__restrict __fmt, __gnuc_va_list __arg)
     __attribute__ ((__format__ (__printf__, 3, 0)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
dprintf (int __fd, const char *__restrict __fmt, ...)
{
  return __dprintf_chk (__fd, 2 - 1, __fmt,
   __builtin_va_arg_pack ());
}





extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
vdprintf (int __fd, const char *__restrict __fmt, __gnuc_va_list __ap)
{
  return __vdprintf_chk (__fd, 2 - 1, __fmt, __ap);
}




extern int __asprintf_chk (char **__restrict __ptr, int __flag,
      const char *__restrict __fmt, ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 4))) __attribute__ ((__warn_unused_result__));
extern int __vasprintf_chk (char **__restrict __ptr, int __flag,
       const char *__restrict __fmt, __gnuc_va_list __arg)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 0))) __attribute__ ((__warn_unused_result__));
extern int __obstack_printf_chk (struct obstack *__restrict __obstack,
     int __flag, const char *__restrict __format,
     ...)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 4)));
extern int __obstack_vprintf_chk (struct obstack *__restrict __obstack,
      int __flag,
      const char *__restrict __format,
      __gnuc_va_list __args)
     noexcept (true) __attribute__ ((__format__ (__printf__, 3, 0)));


extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) asprintf (char **__restrict __ptr, const char *__restrict __fmt, ...) noexcept (true)
{
  return __asprintf_chk (__ptr, 2 - 1, __fmt,
    __builtin_va_arg_pack ());
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) __asprintf (char **__restrict __ptr, const char *__restrict __fmt, ...) noexcept (true)

{
  return __asprintf_chk (__ptr, 2 - 1, __fmt,
    __builtin_va_arg_pack ());
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) obstack_printf (struct obstack *__restrict __obstack, const char *__restrict __fmt, ...) noexcept (true)

{
  return __obstack_printf_chk (__obstack, 2 - 1, __fmt,
          __builtin_va_arg_pack ());
}
# 212 "/usr/include/bits/stdio2.h" 3 4
extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) vasprintf (char **__restrict __ptr, const char *__restrict __fmt, __gnuc_va_list __ap) noexcept (true)

{
  return __vasprintf_chk (__ptr, 2 - 1, __fmt, __ap);
}

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) int
__attribute__ ((__leaf__)) obstack_vprintf (struct obstack *__restrict __obstack, const char *__restrict __fmt, __gnuc_va_list __ap) noexcept (true)

{
  return __obstack_vprintf_chk (__obstack, 2 - 1, __fmt,
    __ap);
}






extern char *__gets_chk (char *__str, size_t) __attribute__ ((__warn_unused_result__));
extern char *__gets_warn (char *__str) __asm__ ("" "gets")
     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("please use fgets or getline instead, gets can't " "specify buffer size")))
                               ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) char *
gets (char *__str)
{
  if (__builtin_object_size (__str, 2 > 1) != (size_t) -1)
    return __gets_chk (__str, __builtin_object_size (__str, 2 > 1));
  return __gets_warn (__str);
}


extern char *__fgets_chk (char *__restrict __s, size_t __size, int __n,
     FILE *__restrict __stream)
    __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 3)));
extern char *__fgets_alias (char *__restrict __s, int __n, FILE *__restrict __stream) __asm__ ("" "fgets")


    __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 2)));
extern char *__fgets_chk_warn (char *__restrict __s, size_t __size, int __n, FILE *__restrict __stream) __asm__ ("" "__fgets_chk")


     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fgets called with bigger size than length " "of destination buffer")))
                                 ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 2))) char *
fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n) || __n <= 0)
 return __fgets_chk (__s, __builtin_object_size (__s, 2 > 1), __n, __stream);

      if ((size_t) __n > __builtin_object_size (__s, 2 > 1))
 return __fgets_chk_warn (__s, __builtin_object_size (__s, 2 > 1), __n, __stream);
    }
  return __fgets_alias (__s, __n, __stream);
}

extern size_t __fread_chk (void *__restrict __ptr, size_t __ptrlen,
      size_t __size, size_t __n,
      FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
extern size_t __fread_alias (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ ("" "fread")


            __attribute__ ((__warn_unused_result__));
extern size_t __fread_chk_warn (void *__restrict __ptr, size_t __ptrlen, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ ("" "__fread_chk")




     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fread called with bigger size * nmemb than length " "of destination buffer")))
                                 ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) size_t
fread (void *__restrict __ptr, size_t __size, size_t __n,
       FILE *__restrict __stream)
{
  if (__builtin_object_size (__ptr, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__size)
   || !__builtin_constant_p (__n)
   || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2)))
 return __fread_chk (__ptr, __builtin_object_size (__ptr, 0), __size, __n, __stream);

      if (__size * __n > __builtin_object_size (__ptr, 0))
 return __fread_chk_warn (__ptr, __builtin_object_size (__ptr, 0), __size, __n, __stream);
    }
  return __fread_alias (__ptr, __size, __n, __stream);
}


extern char *__fgets_unlocked_chk (char *__restrict __s, size_t __size,
       int __n, FILE *__restrict __stream)
    __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 3)));
extern char *__fgets_unlocked_alias (char *__restrict __s, int __n, FILE *__restrict __stream) __asm__ ("" "fgets_unlocked")


    __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 2)));
extern char *__fgets_unlocked_chk_warn (char *__restrict __s, size_t __size, int __n, FILE *__restrict __stream) __asm__ ("" "__fgets_unlocked_chk")


     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fgets_unlocked called with bigger size than length " "of destination buffer")))
                                 ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) __attribute__ ((__access__ (__write_only__, 1, 2))) char *
fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream)
{
  if (__builtin_object_size (__s, 2 > 1) != (size_t) -1)
    {
      if (!__builtin_constant_p (__n) || __n <= 0)
 return __fgets_unlocked_chk (__s, __builtin_object_size (__s, 2 > 1), __n, __stream);

      if ((size_t) __n > __builtin_object_size (__s, 2 > 1))
 return __fgets_unlocked_chk_warn (__s, __builtin_object_size (__s, 2 > 1), __n, __stream);
    }
  return __fgets_unlocked_alias (__s, __n, __stream);
}




extern size_t __fread_unlocked_chk (void *__restrict __ptr, size_t __ptrlen,
        size_t __size, size_t __n,
        FILE *__restrict __stream) __attribute__ ((__warn_unused_result__));
extern size_t __fread_unlocked_alias (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ ("" "fread_unlocked")


                     __attribute__ ((__warn_unused_result__));
extern size_t __fread_unlocked_chk_warn (void *__restrict __ptr, size_t __ptrlen, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ ("" "__fread_unlocked_chk")




     __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fread_unlocked called with bigger size * nmemb than " "length of destination buffer")))
                                        ;

extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) size_t
fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n,
  FILE *__restrict __stream)
{
  if (__builtin_object_size (__ptr, 0) != (size_t) -1)
    {
      if (!__builtin_constant_p (__size)
   || !__builtin_constant_p (__n)
   || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2)))
 return __fread_unlocked_chk (__ptr, __builtin_object_size (__ptr, 0), __size, __n,
         __stream);

      if (__size * __n > __builtin_object_size (__ptr, 0))
 return __fread_unlocked_chk_warn (__ptr, __builtin_object_size (__ptr, 0), __size, __n,
       __stream);
    }


  if (__builtin_constant_p (__size)
      && __builtin_constant_p (__n)
      && (__size | __n) < (((size_t) 1) << (8 * sizeof (size_t) / 2))
      && __size * __n <= 8)
    {
      size_t __cnt = __size * __n;
      char *__cptr = (char *) __ptr;
      if (__cnt == 0)
 return 0;

      for (; __cnt > 0; --__cnt)
 {
   int __c = getc_unlocked (__stream);
   if (__c == (-1))
     break;
   *__cptr++ = __c;
 }
      return (__cptr - (char *) __ptr) / __size;
    }

  return __fread_unlocked_alias (__ptr, __size, __n, __stream);
}
# 867 "/usr/include/stdio.h" 2 3 4







}
# 23 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 2
# 1 "/usr/include/c++/11/stdlib.h" 1 3
# 24 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 2




# 27 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
namespace jxl {
# 75 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
__attribute__((__format__(__printf__, 1, 2)))
bool Debug(const char* format, ...);
# 118 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
__attribute__((noreturn)) bool Abort();
# 222 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
enum class StatusCode : int32_t {

  kNotEnoughBytes = -1,


  kOk = 0,


  kGenericError = 1,
};







class [[nodiscard]] Status {
 public:




  constexpr Status(bool ok)
      : code_(ok ? StatusCode::kOk : StatusCode::kGenericError) {}


  constexpr Status(StatusCode code) : code_(code) {}



  constexpr operator bool() const { return code_ == StatusCode::kOk; }

  constexpr StatusCode code() const { return code_; }


  constexpr bool IsFatalError() const {
    return static_cast<int32_t>(code_) > 0;
  }

 private:
  StatusCode code_;
};



inline __attribute__((__format__(__printf__, 2, 3))) Status
    StatusMessage(const Status status, const char* format, ...) {


  if ((0 && status.IsFatalError()) ||
      (0 && !status)) {
    va_list args;
    
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
   __builtin_va_start(
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
   args
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
   ,
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
   format
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
   )
# 275 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
                         ;
    vfprintf(
# 276 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
            stderr
# 276 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
                  , format, args);
    
# 277 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
   __builtin_va_end(
# 277 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
   args
# 277 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h" 3 4
   )
# 277 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/status.h"
               ;
  }






  return status;
}

}
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/bits.h" 2





# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 28 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/bits.h" 2


namespace jxl {


template <size_t N>
struct SizeTag {};

template <typename T>
constexpr bool IsSigned() {
  return T(0) > T(-1);
}

static inline __attribute__((always_inline)) __attribute__((unused)) size_t PopCount(SizeTag<4> ,
                                                   const uint32_t x) {

  return static_cast<size_t>(__builtin_popcount(x));





}
static inline __attribute__((always_inline)) __attribute__((unused)) size_t PopCount(SizeTag<8> ,
                                                   const uint64_t x) {

  return static_cast<size_t>(__builtin_popcountll(x));





}
template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t PopCount(T x) {
  static_assert(!IsSigned<T>(), "PopCount: use unsigned");
  return PopCount(SizeTag<sizeof(T)>(), x);
}


static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsAboveMS1Bit_Nonzero(SizeTag<4> , const uint32_t x) {
  do { } while (0);





  return static_cast<size_t>(__builtin_clz(x));

}
static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsAboveMS1Bit_Nonzero(SizeTag<8> , const uint64_t x) {
  do { } while (0);





  return static_cast<size_t>(__builtin_clzll(x));

}
template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsAboveMS1Bit_Nonzero(const T x) {
  static_assert(!IsSigned<T>(), "Num0BitsAboveMS1Bit_Nonzero: use unsigned");
  return Num0BitsAboveMS1Bit_Nonzero(SizeTag<sizeof(T)>(), x);
}


static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsBelowLS1Bit_Nonzero(SizeTag<4> , const uint32_t x) {
  do { } while (0);





  return static_cast<size_t>(__builtin_ctz(x));

}
static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsBelowLS1Bit_Nonzero(SizeTag<8> , const uint64_t x) {
  do { } while (0);





  return static_cast<size_t>(__builtin_ctzll(x));

}
template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t Num0BitsBelowLS1Bit_Nonzero(T x) {
  static_assert(!IsSigned<T>(), "Num0BitsBelowLS1Bit_Nonzero: use unsigned");
  return Num0BitsBelowLS1Bit_Nonzero(SizeTag<sizeof(T)>(), x);
}


template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t Num0BitsAboveMS1Bit(const T x) {
  return (x == 0) ? sizeof(T) * 8 : Num0BitsAboveMS1Bit_Nonzero(x);
}


template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t Num0BitsBelowLS1Bit(const T x) {
  return (x == 0) ? sizeof(T) * 8 : Num0BitsBelowLS1Bit_Nonzero(x);
}


template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t FloorLog2Nonzero(const T x) {
  return (sizeof(T) * 8 - 1) ^ Num0BitsAboveMS1Bit_Nonzero(x);
}


template <typename T>
static inline __attribute__((always_inline)) __attribute__((unused)) size_t CeilLog2Nonzero(const T x) {
  const size_t floor_log2 = FloorLog2Nonzero(x);
  if ((x & (x - 1)) == 0) return floor_log2;
  return floor_log2 + 1;
}

}
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h" 2

# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order_fwd.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order_fwd.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order_fwd.h" 2


# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/compiler_specific.h" 1
# 24 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order_fwd.h" 2

namespace jxl {



using coeff_order_t = uint32_t;




constexpr uint8_t kNumOrders = 13;



inline __attribute__((always_inline)) constexpr size_t CoefficientRows(size_t rows, size_t columns) {
  return rows < columns ? rows : columns;
}

inline __attribute__((always_inline)) constexpr size_t CoefficientColumns(size_t rows, size_t columns) {
  return rows < columns ? columns : rows;
}

inline __attribute__((always_inline)) void CoefficientLayout(size_t* __restrict__ rows,
                                  size_t* __restrict__ columns) {
  size_t r = *rows;
  size_t c = *columns;
  *rows = CoefficientRows(r, c);
  *columns = CoefficientColumns(r, c);
}

}
# 24 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h" 2

namespace jxl {



constexpr uint32_t kDCTOrderContextStart = 0;




constexpr uint32_t kNonZeroBuckets = 37;

static const uint16_t kCoeffFreqContext[64] = {
    0xBAD, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
    15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
    23, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26,
    27, 27, 27, 27, 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30, 30,
};

static const uint16_t kCoeffNumNonzeroContext[64] = {
    0xBAD, 0, 31, 62, 62, 93, 93, 93, 93, 123, 123, 123, 123,
    152, 152, 152, 152, 152, 152, 152, 152, 180, 180, 180, 180, 180,
    180, 180, 180, 180, 180, 180, 180, 206, 206, 206, 206, 206, 206,
    206, 206, 206, 206, 206, 206, 206, 206, 206, 206, 206, 206, 206,
    206, 206, 206, 206, 206, 206, 206, 206, 206, 206, 206, 206,
};


constexpr int kZeroDensityContextCount = 458;
# 68 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h"
static inline __attribute__((always_inline)) size_t ZeroDensityContext(size_t nonzeros_left, size_t k,
                                            size_t covered_blocks,
                                            size_t log2_covered_blocks,
                                            size_t prev) {
  do { } while (0);
  nonzeros_left = (nonzeros_left + covered_blocks - 1) >> log2_covered_blocks;
  k >>= log2_covered_blocks;
  do { } while (0);
  do { } while (0);
  do { } while (0);






  do { } while (0);
  return (kCoeffNumNonzeroContext[nonzeros_left] + kCoeffFreqContext[k]) * 2 +
         prev;
}

struct BlockCtxMap {
  std::vector<int> dc_thresholds[3];
  std::vector<uint32_t> qf_thresholds;
  std::vector<uint8_t> ctx_map;
  size_t num_ctxs, num_dc_ctxs;

  static constexpr uint8_t kDefaultCtxMap[] = {

      0, 1, 2, 2, 3, 3, 4, 5, 6, 6, 6, 6, 6,
      7, 8, 9, 9, 10, 11, 12, 13, 14, 14, 14, 14, 14,
      7, 8, 9, 9, 10, 11, 12, 13, 14, 14, 14, 14, 14,
  };
  static_assert(3 * kNumOrders ==
                    sizeof(kDefaultCtxMap) / sizeof *kDefaultCtxMap,
                "Update default context map");

  size_t Context(int dc_idx, uint32_t qf, size_t ord, size_t c) const {
    size_t qf_idx = 0;
    for (uint32_t t : qf_thresholds) {
      if (qf > t) qf_idx++;
    }
    size_t idx = c < 2 ? c ^ 1 : 2;
    idx = idx * kNumOrders + ord;
    idx = idx * (qf_thresholds.size() + 1) + qf_idx;
    idx = idx * num_dc_ctxs + dc_idx;
    return ctx_map[idx];
  }


  constexpr uint32_t ZeroDensityContextsOffset(uint32_t block_ctx) const {
    return num_ctxs * kNonZeroBuckets + kZeroDensityContextCount * block_ctx;
  }
# 130 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_context.h"
  constexpr uint32_t NumACContexts() const {
    return num_ctxs * (kNonZeroBuckets + kZeroDensityContextCount);
  }



  inline uint32_t NonZeroContext(uint32_t non_zeros, uint32_t block_ctx) const {
    uint32_t ctx;
    if (non_zeros >= 64) non_zeros = 64;
    if (non_zeros < 8) {
      ctx = non_zeros;
    } else {
      ctx = 4 + non_zeros / 2;
    }
    return ctx * num_ctxs + block_ctx;
  }

  BlockCtxMap() {
    ctx_map.assign(std::begin(kDefaultCtxMap), std::end(kDefaultCtxMap));
    num_ctxs = *std::max_element(ctx_map.begin(), ctx_map.end()) + 1;
    num_dc_ctxs = 1;
  }
};

}
# 29 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h" 2




# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/common.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/common.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/common.h" 2

# 1 "/usr/include/c++/11/limits" 1 3
# 40 "/usr/include/c++/11/limits" 3
       
# 41 "/usr/include/c++/11/limits" 3
# 158 "/usr/include/c++/11/limits" 3

# 158 "/usr/include/c++/11/limits" 3
namespace std __attribute__ ((__visibility__ ("default")))
{







  enum float_round_style
  {
    round_indeterminate = -1,
    round_toward_zero = 0,
    round_to_nearest = 1,
    round_toward_infinity = 2,
    round_toward_neg_infinity = 3
  };







  enum float_denorm_style
  {

    denorm_indeterminate = -1,

    denorm_absent = 0,

    denorm_present = 1
  };
# 202 "/usr/include/c++/11/limits" 3
  struct __numeric_limits_base
  {


    static constexpr bool is_specialized = false;




    static constexpr int digits = 0;


    static constexpr int digits10 = 0;




    static constexpr int max_digits10 = 0;



    static constexpr bool is_signed = false;


    static constexpr bool is_integer = false;




    static constexpr bool is_exact = false;



    static constexpr int radix = 0;



    static constexpr int min_exponent = 0;



    static constexpr int min_exponent10 = 0;




    static constexpr int max_exponent = 0;



    static constexpr int max_exponent10 = 0;


    static constexpr bool has_infinity = false;



    static constexpr bool has_quiet_NaN = false;



    static constexpr bool has_signaling_NaN = false;


    static constexpr float_denorm_style has_denorm = denorm_absent;



    static constexpr bool has_denorm_loss = false;



    static constexpr bool is_iec559 = false;




    static constexpr bool is_bounded = false;
# 288 "/usr/include/c++/11/limits" 3
    static constexpr bool is_modulo = false;


    static constexpr bool traps = false;


    static constexpr bool tinyness_before = false;




    static constexpr float_round_style round_style =
          round_toward_zero;
  };
# 311 "/usr/include/c++/11/limits" 3
  template<typename _Tp>
    struct numeric_limits : public __numeric_limits_base
    {


      static constexpr _Tp
      min() noexcept { return _Tp(); }


      static constexpr _Tp
      max() noexcept { return _Tp(); }




      static constexpr _Tp
      lowest() noexcept { return _Tp(); }




      static constexpr _Tp
      epsilon() noexcept { return _Tp(); }


      static constexpr _Tp
      round_error() noexcept { return _Tp(); }


      static constexpr _Tp
      infinity() noexcept { return _Tp(); }



      static constexpr _Tp
      quiet_NaN() noexcept { return _Tp(); }



      static constexpr _Tp
      signaling_NaN() noexcept { return _Tp(); }




      static constexpr _Tp
      denorm_min() noexcept { return _Tp(); }
    };




  template<typename _Tp>
    struct numeric_limits<const _Tp>
    : public numeric_limits<_Tp> { };

  template<typename _Tp>
    struct numeric_limits<volatile _Tp>
    : public numeric_limits<_Tp> { };

  template<typename _Tp>
    struct numeric_limits<const volatile _Tp>
    : public numeric_limits<_Tp> { };
# 383 "/usr/include/c++/11/limits" 3
  template<>
    struct numeric_limits<bool>
    {
      static constexpr bool is_specialized = true;

      static constexpr bool
      min() noexcept { return false; }

      static constexpr bool
      max() noexcept { return true; }


      static constexpr bool
      lowest() noexcept { return min(); }

      static constexpr int digits = 1;
      static constexpr int digits10 = 0;

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr bool
      epsilon() noexcept { return false; }

      static constexpr bool
      round_error() noexcept { return false; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr bool
      infinity() noexcept { return false; }

      static constexpr bool
      quiet_NaN() noexcept { return false; }

      static constexpr bool
      signaling_NaN() noexcept { return false; }

      static constexpr bool
      denorm_min() noexcept { return false; }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;




      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<char>
    {
      static constexpr bool is_specialized = true;

      static constexpr char
      min() noexcept { return (((char)(-1) < 0) ? -(((char)(-1) < 0) ? (((((char)1 << ((sizeof(char) * 8 - ((char)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char)0) - 1 : (char)0); }

      static constexpr char
      max() noexcept { return (((char)(-1) < 0) ? (((((char)1 << ((sizeof(char) * 8 - ((char)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char)0); }


      static constexpr char
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(char) * 8 - ((char)(-1) < 0));
      static constexpr int digits10 = ((sizeof(char) * 8 - ((char)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = ((char)(-1) < 0);
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr char
      epsilon() noexcept { return 0; }

      static constexpr char
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr
      char infinity() noexcept { return char(); }

      static constexpr char
      quiet_NaN() noexcept { return char(); }

      static constexpr char
      signaling_NaN() noexcept { return char(); }

      static constexpr char
      denorm_min() noexcept { return static_cast<char>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = !is_signed;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<signed char>
    {
      static constexpr bool is_specialized = true;

      static constexpr signed char
      min() noexcept { return -0x7f - 1; }

      static constexpr signed char
      max() noexcept { return 0x7f; }


      static constexpr signed char
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(signed char) * 8 - ((signed char)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(signed char) * 8 - ((signed char)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr signed char
      epsilon() noexcept { return 0; }

      static constexpr signed char
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr signed char
      infinity() noexcept { return static_cast<signed char>(0); }

      static constexpr signed char
      quiet_NaN() noexcept { return static_cast<signed char>(0); }

      static constexpr signed char
      signaling_NaN() noexcept
      { return static_cast<signed char>(0); }

      static constexpr signed char
      denorm_min() noexcept
      { return static_cast<signed char>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<unsigned char>
    {
      static constexpr bool is_specialized = true;

      static constexpr unsigned char
      min() noexcept { return 0; }

      static constexpr unsigned char
      max() noexcept { return 0x7f * 2U + 1; }


      static constexpr unsigned char
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(unsigned char) * 8 - ((unsigned char)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(unsigned char) * 8 - ((unsigned char)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr unsigned char
      epsilon() noexcept { return 0; }

      static constexpr unsigned char
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr unsigned char
      infinity() noexcept
      { return static_cast<unsigned char>(0); }

      static constexpr unsigned char
      quiet_NaN() noexcept
      { return static_cast<unsigned char>(0); }

      static constexpr unsigned char
      signaling_NaN() noexcept
      { return static_cast<unsigned char>(0); }

      static constexpr unsigned char
      denorm_min() noexcept
      { return static_cast<unsigned char>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = true;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<wchar_t>
    {
      static constexpr bool is_specialized = true;

      static constexpr wchar_t
      min() noexcept { return (((wchar_t)(-1) < 0) ? -(((wchar_t)(-1) < 0) ? (((((wchar_t)1 << ((sizeof(wchar_t) * 8 - ((wchar_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(wchar_t)0) - 1 : (wchar_t)0); }

      static constexpr wchar_t
      max() noexcept { return (((wchar_t)(-1) < 0) ? (((((wchar_t)1 << ((sizeof(wchar_t) * 8 - ((wchar_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(wchar_t)0); }


      static constexpr wchar_t
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(wchar_t) * 8 - ((wchar_t)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(wchar_t) * 8 - ((wchar_t)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = ((wchar_t)(-1) < 0);
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr wchar_t
      epsilon() noexcept { return 0; }

      static constexpr wchar_t
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr wchar_t
      infinity() noexcept { return wchar_t(); }

      static constexpr wchar_t
      quiet_NaN() noexcept { return wchar_t(); }

      static constexpr wchar_t
      signaling_NaN() noexcept { return wchar_t(); }

      static constexpr wchar_t
      denorm_min() noexcept { return wchar_t(); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = !is_signed;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };
# 796 "/usr/include/c++/11/limits" 3
  template<>
    struct numeric_limits<char16_t>
    {
      static constexpr bool is_specialized = true;

      static constexpr char16_t
      min() noexcept { return (((char16_t)(-1) < 0) ? -(((char16_t)(-1) < 0) ? (((((char16_t)1 << ((sizeof(char16_t) * 8 - ((char16_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char16_t)0) - 1 : (char16_t)0); }

      static constexpr char16_t
      max() noexcept { return (((char16_t)(-1) < 0) ? (((((char16_t)1 << ((sizeof(char16_t) * 8 - ((char16_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char16_t)0); }

      static constexpr char16_t
      lowest() noexcept { return min(); }

      static constexpr int digits = (sizeof(char16_t) * 8 - ((char16_t)(-1) < 0));
      static constexpr int digits10 = ((sizeof(char16_t) * 8 - ((char16_t)(-1) < 0)) * 643L / 2136);
      static constexpr int max_digits10 = 0;
      static constexpr bool is_signed = ((char16_t)(-1) < 0);
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr char16_t
      epsilon() noexcept { return 0; }

      static constexpr char16_t
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr char16_t
      infinity() noexcept { return char16_t(); }

      static constexpr char16_t
      quiet_NaN() noexcept { return char16_t(); }

      static constexpr char16_t
      signaling_NaN() noexcept { return char16_t(); }

      static constexpr char16_t
      denorm_min() noexcept { return char16_t(); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = !is_signed;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style = round_toward_zero;
    };


  template<>
    struct numeric_limits<char32_t>
    {
      static constexpr bool is_specialized = true;

      static constexpr char32_t
      min() noexcept { return (((char32_t)(-1) < 0) ? -(((char32_t)(-1) < 0) ? (((((char32_t)1 << ((sizeof(char32_t) * 8 - ((char32_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char32_t)0) - 1 : (char32_t)0); }

      static constexpr char32_t
      max() noexcept { return (((char32_t)(-1) < 0) ? (((((char32_t)1 << ((sizeof(char32_t) * 8 - ((char32_t)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(char32_t)0); }

      static constexpr char32_t
      lowest() noexcept { return min(); }

      static constexpr int digits = (sizeof(char32_t) * 8 - ((char32_t)(-1) < 0));
      static constexpr int digits10 = ((sizeof(char32_t) * 8 - ((char32_t)(-1) < 0)) * 643L / 2136);
      static constexpr int max_digits10 = 0;
      static constexpr bool is_signed = ((char32_t)(-1) < 0);
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr char32_t
      epsilon() noexcept { return 0; }

      static constexpr char32_t
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr char32_t
      infinity() noexcept { return char32_t(); }

      static constexpr char32_t
      quiet_NaN() noexcept { return char32_t(); }

      static constexpr char32_t
      signaling_NaN() noexcept { return char32_t(); }

      static constexpr char32_t
      denorm_min() noexcept { return char32_t(); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = !is_signed;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style = round_toward_zero;
    };



  template<>
    struct numeric_limits<short>
    {
      static constexpr bool is_specialized = true;

      static constexpr short
      min() noexcept { return -0x7fff - 1; }

      static constexpr short
      max() noexcept { return 0x7fff; }


      static constexpr short
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(short) * 8 - ((short)(-1) < 0));
      static constexpr int digits10 = ((sizeof(short) * 8 - ((short)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr short
      epsilon() noexcept { return 0; }

      static constexpr short
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr short
      infinity() noexcept { return short(); }

      static constexpr short
      quiet_NaN() noexcept { return short(); }

      static constexpr short
      signaling_NaN() noexcept { return short(); }

      static constexpr short
      denorm_min() noexcept { return short(); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<unsigned short>
    {
      static constexpr bool is_specialized = true;

      static constexpr unsigned short
      min() noexcept { return 0; }

      static constexpr unsigned short
      max() noexcept { return 0x7fff * 2U + 1; }


      static constexpr unsigned short
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(unsigned short) * 8 - ((unsigned short)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(unsigned short) * 8 - ((unsigned short)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr unsigned short
      epsilon() noexcept { return 0; }

      static constexpr unsigned short
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr unsigned short
      infinity() noexcept
      { return static_cast<unsigned short>(0); }

      static constexpr unsigned short
      quiet_NaN() noexcept
      { return static_cast<unsigned short>(0); }

      static constexpr unsigned short
      signaling_NaN() noexcept
      { return static_cast<unsigned short>(0); }

      static constexpr unsigned short
      denorm_min() noexcept
      { return static_cast<unsigned short>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = true;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<int>
    {
      static constexpr bool is_specialized = true;

      static constexpr int
      min() noexcept { return -0x7fffffff - 1; }

      static constexpr int
      max() noexcept { return 0x7fffffff; }


      static constexpr int
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(int) * 8 - ((int)(-1) < 0));
      static constexpr int digits10 = ((sizeof(int) * 8 - ((int)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr int
      epsilon() noexcept { return 0; }

      static constexpr int
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr int
      infinity() noexcept { return static_cast<int>(0); }

      static constexpr int
      quiet_NaN() noexcept { return static_cast<int>(0); }

      static constexpr int
      signaling_NaN() noexcept { return static_cast<int>(0); }

      static constexpr int
      denorm_min() noexcept { return static_cast<int>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<unsigned int>
    {
      static constexpr bool is_specialized = true;

      static constexpr unsigned int
      min() noexcept { return 0; }

      static constexpr unsigned int
      max() noexcept { return 0x7fffffff * 2U + 1; }


      static constexpr unsigned int
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(unsigned int) * 8 - ((unsigned int)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(unsigned int) * 8 - ((unsigned int)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr unsigned int
      epsilon() noexcept { return 0; }

      static constexpr unsigned int
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr unsigned int
      infinity() noexcept { return static_cast<unsigned int>(0); }

      static constexpr unsigned int
      quiet_NaN() noexcept
      { return static_cast<unsigned int>(0); }

      static constexpr unsigned int
      signaling_NaN() noexcept
      { return static_cast<unsigned int>(0); }

      static constexpr unsigned int
      denorm_min() noexcept
      { return static_cast<unsigned int>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = true;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<long>
    {
      static constexpr bool is_specialized = true;

      static constexpr long
      min() noexcept { return -0x7fffffffffffffffL - 1; }

      static constexpr long
      max() noexcept { return 0x7fffffffffffffffL; }


      static constexpr long
      lowest() noexcept { return min(); }


      static constexpr int digits = (sizeof(long) * 8 - ((long)(-1) < 0));
      static constexpr int digits10 = ((sizeof(long) * 8 - ((long)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr long
      epsilon() noexcept { return 0; }

      static constexpr long
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr long
      infinity() noexcept { return static_cast<long>(0); }

      static constexpr long
      quiet_NaN() noexcept { return static_cast<long>(0); }

      static constexpr long
      signaling_NaN() noexcept { return static_cast<long>(0); }

      static constexpr long
      denorm_min() noexcept { return static_cast<long>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<unsigned long>
    {
      static constexpr bool is_specialized = true;

      static constexpr unsigned long
      min() noexcept { return 0; }

      static constexpr unsigned long
      max() noexcept { return 0x7fffffffffffffffL * 2UL + 1; }


      static constexpr unsigned long
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(unsigned long) * 8 - ((unsigned long)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(unsigned long) * 8 - ((unsigned long)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr unsigned long
      epsilon() noexcept { return 0; }

      static constexpr unsigned long
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr unsigned long
      infinity() noexcept
      { return static_cast<unsigned long>(0); }

      static constexpr unsigned long
      quiet_NaN() noexcept
      { return static_cast<unsigned long>(0); }

      static constexpr unsigned long
      signaling_NaN() noexcept
      { return static_cast<unsigned long>(0); }

      static constexpr unsigned long
      denorm_min() noexcept
      { return static_cast<unsigned long>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = true;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<long long>
    {
      static constexpr bool is_specialized = true;

      static constexpr long long
      min() noexcept { return -0x7fffffffffffffffLL - 1; }

      static constexpr long long
      max() noexcept { return 0x7fffffffffffffffLL; }


      static constexpr long long
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(long long) * 8 - ((long long)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(long long) * 8 - ((long long)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr long long
      epsilon() noexcept { return 0; }

      static constexpr long long
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr long long
      infinity() noexcept { return static_cast<long long>(0); }

      static constexpr long long
      quiet_NaN() noexcept { return static_cast<long long>(0); }

      static constexpr long long
      signaling_NaN() noexcept
      { return static_cast<long long>(0); }

      static constexpr long long
      denorm_min() noexcept { return static_cast<long long>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };


  template<>
    struct numeric_limits<unsigned long long>
    {
      static constexpr bool is_specialized = true;

      static constexpr unsigned long long
      min() noexcept { return 0; }

      static constexpr unsigned long long
      max() noexcept { return 0x7fffffffffffffffLL * 2ULL + 1; }


      static constexpr unsigned long long
      lowest() noexcept { return min(); }


      static constexpr int digits
       = (sizeof(unsigned long long) * 8 - ((unsigned long long)(-1) < 0));
      static constexpr int digits10
       = ((sizeof(unsigned long long) * 8 - ((unsigned long long)(-1) < 0)) * 643L / 2136);

      static constexpr int max_digits10 = 0;

      static constexpr bool is_signed = false;
      static constexpr bool is_integer = true;
      static constexpr bool is_exact = true;
      static constexpr int radix = 2;

      static constexpr unsigned long long
      epsilon() noexcept { return 0; }

      static constexpr unsigned long long
      round_error() noexcept { return 0; }

      static constexpr int min_exponent = 0;
      static constexpr int min_exponent10 = 0;
      static constexpr int max_exponent = 0;
      static constexpr int max_exponent10 = 0;

      static constexpr bool has_infinity = false;
      static constexpr bool has_quiet_NaN = false;
      static constexpr bool has_signaling_NaN = false;
      static constexpr float_denorm_style has_denorm
       = denorm_absent;
      static constexpr bool has_denorm_loss = false;

      static constexpr unsigned long long
      infinity() noexcept
      { return static_cast<unsigned long long>(0); }

      static constexpr unsigned long long
      quiet_NaN() noexcept
      { return static_cast<unsigned long long>(0); }

      static constexpr unsigned long long
      signaling_NaN() noexcept
      { return static_cast<unsigned long long>(0); }

      static constexpr unsigned long long
      denorm_min() noexcept
      { return static_cast<unsigned long long>(0); }

      static constexpr bool is_iec559 = false;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = true;

      static constexpr bool traps = true;
      static constexpr bool tinyness_before = false;
      static constexpr float_round_style round_style
       = round_toward_zero;
    };
# 1656 "/usr/include/c++/11/limits" 3
  template<> struct numeric_limits<__int128> { static constexpr bool is_specialized = true; static constexpr __int128 min() noexcept { return (((__int128)(-1) < 0) ? -(((__int128)(-1) < 0) ? (((((__int128)1 << ((128 - ((__int128)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(__int128)0) - 1 : (__int128)0); } static constexpr __int128 max() noexcept { return (((__int128)(-1) < 0) ? (((((__int128)1 << ((128 - ((__int128)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(__int128)0); } static constexpr int digits = 128 - 1; static constexpr int digits10 = (128 - 1) * 643L / 2136; static constexpr bool is_signed = true; static constexpr bool is_integer = true; static constexpr bool is_exact = true; static constexpr int radix = 2; static constexpr __int128 epsilon() noexcept { return 0; } static constexpr __int128 round_error() noexcept { return 0; } static constexpr __int128 lowest() noexcept { return min(); } static constexpr int max_digits10 = 0; static constexpr int min_exponent = 0; static constexpr int min_exponent10 = 0; static constexpr int max_exponent = 0; static constexpr int max_exponent10 = 0; static constexpr bool has_infinity = false; static constexpr bool has_quiet_NaN = false; static constexpr bool has_signaling_NaN = false; static constexpr float_denorm_style has_denorm = denorm_absent; static constexpr bool has_denorm_loss = false; static constexpr __int128 infinity() noexcept { return static_cast<__int128>(0); } static constexpr __int128 quiet_NaN() noexcept { return static_cast<__int128>(0); } static constexpr __int128 signaling_NaN() noexcept { return static_cast<__int128>(0); } static constexpr __int128 denorm_min() noexcept { return static_cast<__int128>(0); } static constexpr bool is_iec559 = false; static constexpr bool is_bounded = true; static constexpr bool is_modulo = false; static constexpr bool traps = true; static constexpr bool tinyness_before = false; static constexpr float_round_style round_style = round_toward_zero; }; template<> struct numeric_limits<unsigned __int128> { static constexpr bool is_specialized = true; static constexpr unsigned __int128 min() noexcept { return 0; } static constexpr unsigned __int128 max() noexcept { return (((unsigned __int128)(-1) < 0) ? (((((unsigned __int128)1 << ((128 - ((unsigned __int128)(-1) < 0)) - 1)) - 1) << 1) + 1) : ~(unsigned __int128)0); } static constexpr unsigned __int128 lowest() noexcept { return min(); } static constexpr int max_digits10 = 0; static constexpr int digits = 128; static constexpr int digits10 = 128 * 643L / 2136; static constexpr bool is_signed = false; static constexpr bool is_integer = true; static constexpr bool is_exact = true; static constexpr int radix = 2; static constexpr unsigned __int128 epsilon() noexcept { return 0; } static constexpr unsigned __int128 round_error() noexcept { return 0; } static constexpr int min_exponent = 0; static constexpr int min_exponent10 = 0; static constexpr int max_exponent = 0; static constexpr int max_exponent10 = 0; static constexpr bool has_infinity = false; static constexpr bool has_quiet_NaN = false; static constexpr bool has_signaling_NaN = false; static constexpr float_denorm_style has_denorm = denorm_absent; static constexpr bool has_denorm_loss = false; static constexpr unsigned __int128 infinity() noexcept { return static_cast<unsigned __int128>(0); } static constexpr unsigned __int128 quiet_NaN() noexcept { return static_cast<unsigned __int128>(0); } static constexpr unsigned __int128 signaling_NaN() noexcept { return static_cast<unsigned __int128>(0); } static constexpr unsigned __int128 denorm_min() noexcept { return static_cast<unsigned __int128>(0); } static constexpr bool is_iec559 = false; static constexpr bool is_bounded = true; static constexpr bool is_modulo = true; static constexpr bool traps = true; static constexpr bool tinyness_before = false; static constexpr float_round_style round_style = round_toward_zero; };
# 1667 "/usr/include/c++/11/limits" 3
  template<>
    struct numeric_limits<float>
    {
      static constexpr bool is_specialized = true;

      static constexpr float
      min() noexcept { return 1.17549435082228750796873653722224568e-38F; }

      static constexpr float
      max() noexcept { return 3.40282346638528859811704183484516925e+38F; }


      static constexpr float
      lowest() noexcept { return -3.40282346638528859811704183484516925e+38F; }


      static constexpr int digits = 24;
      static constexpr int digits10 = 6;

      static constexpr int max_digits10
  = (2 + (24) * 643L / 2136);

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = false;
      static constexpr bool is_exact = false;
      static constexpr int radix = 2;

      static constexpr float
      epsilon() noexcept { return 1.19209289550781250000000000000000000e-7F; }

      static constexpr float
      round_error() noexcept { return 0.5F; }

      static constexpr int min_exponent = (-125);
      static constexpr int min_exponent10 = (-37);
      static constexpr int max_exponent = 128;
      static constexpr int max_exponent10 = 38;

      static constexpr bool has_infinity = 1;
      static constexpr bool has_quiet_NaN = 1;
      static constexpr bool has_signaling_NaN = has_quiet_NaN;
      static constexpr float_denorm_style has_denorm
 = bool(1) ? denorm_present : denorm_absent;
      static constexpr bool has_denorm_loss
       = false;

      static constexpr float
      infinity() noexcept { return __builtin_huge_valf(); }

      static constexpr float
      quiet_NaN() noexcept { return __builtin_nanf(""); }

      static constexpr float
      signaling_NaN() noexcept { return __builtin_nansf(""); }

      static constexpr float
      denorm_min() noexcept { return 1.40129846432481707092372958328991613e-45F; }

      static constexpr bool is_iec559
 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = false;
      static constexpr bool tinyness_before
       = false;
      static constexpr float_round_style round_style
       = round_to_nearest;
    };






  template<>
    struct numeric_limits<double>
    {
      static constexpr bool is_specialized = true;

      static constexpr double
      min() noexcept { return double(2.22507385850720138309023271733240406e-308L); }

      static constexpr double
      max() noexcept { return double(1.79769313486231570814527423731704357e+308L); }


      static constexpr double
      lowest() noexcept { return -double(1.79769313486231570814527423731704357e+308L); }


      static constexpr int digits = 53;
      static constexpr int digits10 = 15;

      static constexpr int max_digits10
  = (2 + (53) * 643L / 2136);

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = false;
      static constexpr bool is_exact = false;
      static constexpr int radix = 2;

      static constexpr double
      epsilon() noexcept { return double(2.22044604925031308084726333618164062e-16L); }

      static constexpr double
      round_error() noexcept { return 0.5; }

      static constexpr int min_exponent = (-1021);
      static constexpr int min_exponent10 = (-307);
      static constexpr int max_exponent = 1024;
      static constexpr int max_exponent10 = 308;

      static constexpr bool has_infinity = 1;
      static constexpr bool has_quiet_NaN = 1;
      static constexpr bool has_signaling_NaN = has_quiet_NaN;
      static constexpr float_denorm_style has_denorm
 = bool(1) ? denorm_present : denorm_absent;
      static constexpr bool has_denorm_loss
        = false;

      static constexpr double
      infinity() noexcept { return __builtin_huge_val(); }

      static constexpr double
      quiet_NaN() noexcept { return __builtin_nan(""); }

      static constexpr double
      signaling_NaN() noexcept { return __builtin_nans(""); }

      static constexpr double
      denorm_min() noexcept { return double(4.94065645841246544176568792868221372e-324L); }

      static constexpr bool is_iec559
 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = false;
      static constexpr bool tinyness_before
       = false;
      static constexpr float_round_style round_style
       = round_to_nearest;
    };






  template<>
    struct numeric_limits<long double>
    {
      static constexpr bool is_specialized = true;

      static constexpr long double
      min() noexcept { return 3.36210314311209350626267781732175260e-4932L; }

      static constexpr long double
      max() noexcept { return 1.18973149535723176502126385303097021e+4932L; }


      static constexpr long double
      lowest() noexcept { return -1.18973149535723176502126385303097021e+4932L; }


      static constexpr int digits = 64;
      static constexpr int digits10 = 18;

      static constexpr int max_digits10
  = (2 + (64) * 643L / 2136);

      static constexpr bool is_signed = true;
      static constexpr bool is_integer = false;
      static constexpr bool is_exact = false;
      static constexpr int radix = 2;

      static constexpr long double
      epsilon() noexcept { return 1.08420217248550443400745280086994171e-19L; }

      static constexpr long double
      round_error() noexcept { return 0.5L; }

      static constexpr int min_exponent = (-16381);
      static constexpr int min_exponent10 = (-4931);
      static constexpr int max_exponent = 16384;
      static constexpr int max_exponent10 = 4932;

      static constexpr bool has_infinity = 1;
      static constexpr bool has_quiet_NaN = 1;
      static constexpr bool has_signaling_NaN = has_quiet_NaN;
      static constexpr float_denorm_style has_denorm
 = bool(1) ? denorm_present : denorm_absent;
      static constexpr bool has_denorm_loss
 = false;

      static constexpr long double
      infinity() noexcept { return __builtin_huge_vall(); }

      static constexpr long double
      quiet_NaN() noexcept { return __builtin_nanl(""); }

      static constexpr long double
      signaling_NaN() noexcept { return __builtin_nansl(""); }

      static constexpr long double
      denorm_min() noexcept { return 3.64519953188247460252840593361941982e-4951L; }

      static constexpr bool is_iec559
 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
      static constexpr bool is_bounded = true;
      static constexpr bool is_modulo = false;

      static constexpr bool traps = false;
      static constexpr bool tinyness_before =
      false;
      static constexpr float_round_style round_style =
            round_to_nearest;
    };






}
# 23 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/common.h" 2





# 27 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/common.h"
namespace jxl {

enum class BlockType : uint8_t {
  kAdd = 0,
  kTowardsBlack = 1,
  kTowardsWhite = 2,
  kNumBlockTypes,
};

constexpr size_t kBitsPerByte = 8;

constexpr inline size_t RoundUpBitsToByteMultiple(size_t bits) {
  return (bits + 7) & ~size_t(7);
}

constexpr inline size_t RoundUpToBlockDim(size_t dim) {
  return (dim + 7) & ~size_t(7);
}

static inline bool __attribute__((unused)) SafeAdd(const uint64_t a, const uint64_t b,
                                            uint64_t& sum) {
  sum = a + b;
  return sum >= a;
}

template <typename T1, typename T2>
constexpr inline T1 DivCeil(T1 a, T2 b) {
  return (a + b - 1) / b;
}


constexpr inline size_t RoundUpTo(size_t what, size_t align) {
  return DivCeil(what, align) * align;
}

constexpr double kPi = 3.14159265358979323846264338327950288;




static constexpr float kDefaultIntensityTarget = 255;

template <typename T>
constexpr T Pi(T multiplier) {
  return static_cast<T>(multiplier * kPi);
}



constexpr size_t kBlockDim = 8;

constexpr size_t kDCTBlockSize = kBlockDim * kBlockDim;






constexpr size_t kDcGroupDimInBlocks = 256;
constexpr size_t kDcGroupDim = kDcGroupDimInBlocks * kBlockDim;



constexpr size_t kGroupDim = 256;
static_assert(kGroupDim % kBlockDim == 0,
              "Group dim should be divisible by block dim");
constexpr size_t kGroupDimInBlocks = kGroupDim / kBlockDim;


constexpr size_t kMaxNumPasses = 11;


constexpr size_t kMaxNumReferenceFrames = 3;




struct FrameDimensions {
  void Set(size_t xsize, size_t ysize, size_t group_size_shift,
           size_t max_hshift, size_t max_vshift, bool modular_mode,
           size_t upsampling) {
    group_dim = (kGroupDim >> 1) << group_size_shift;
    static_assert(
        kGroupDim == kDcGroupDimInBlocks,
        "DC groups (in blocks) and groups (in pixels) have different size");
    xsize_upsampled = xsize;
    ysize_upsampled = ysize;
    this->xsize = DivCeil(xsize, upsampling);
    this->ysize = DivCeil(ysize, upsampling);
    xsize_blocks = DivCeil(this->xsize, kBlockDim << max_hshift) << max_hshift;
    ysize_blocks = DivCeil(this->ysize, kBlockDim << max_vshift) << max_vshift;
    xsize_padded = xsize_blocks * kBlockDim;
    ysize_padded = ysize_blocks * kBlockDim;
    if (modular_mode) {

      xsize_padded = xsize;
      ysize_padded = ysize;
    }
    xsize_groups = DivCeil(this->xsize, group_dim);
    ysize_groups = DivCeil(this->ysize, group_dim);
    xsize_dc_groups = DivCeil(xsize_blocks, group_dim);
    ysize_dc_groups = DivCeil(ysize_blocks, group_dim);
    num_groups = xsize_groups * ysize_groups;
    num_dc_groups = xsize_dc_groups * ysize_dc_groups;
  }

  size_t xsize;
  size_t ysize;
  size_t xsize_upsampled;
  size_t ysize_upsampled;
  size_t xsize_padded;
  size_t ysize_padded;
  size_t xsize_blocks;
  size_t ysize_blocks;
  size_t xsize_groups;
  size_t ysize_groups;
  size_t xsize_dc_groups;
  size_t ysize_dc_groups;
  size_t num_groups;
  size_t num_dc_groups;
  size_t group_dim;
};



template <typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args) {
  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}




template <typename T>
inline __attribute__((always_inline)) T Clamp1(T val, T low, T hi) {
  return val < low ? low : val > hi ? hi : val;
}

template <typename T>
inline __attribute__((always_inline)) T ClampToRange(int64_t val) {
  return Clamp1<int64_t>(val, std::numeric_limits<T>::min(),
                         std::numeric_limits<T>::max());
}

template <typename T>
inline __attribute__((always_inline)) T SaturatingMul(int64_t a, int64_t b) {
  return ClampToRange<T>(a * b);
}

template <typename T>
inline __attribute__((always_inline)) T SaturatingAdd(int64_t a, int64_t b) {
  return ClampToRange<T>(a + b);
}


constexpr uint32_t PackSigned(int32_t value) {
  return (static_cast<uint32_t>(value) << 1) ^
         ((static_cast<uint32_t>(~value) >> 31) - 1);
}


constexpr intptr_t UnpackSigned(size_t value) {
  return static_cast<intptr_t>((value >> 1) ^ (((~value) & 1) - 1));
}

}
# 24 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h" 1
# 25 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h"
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/profiler.h" 1
# 26 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h" 2

# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h" 2





# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/cache_aligned.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/cache_aligned.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/cache_aligned.h" 2




# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h" 2


# 1 "/usr/include/hwy/base.h" 1 3 4
# 20 "/usr/include/hwy/base.h" 3 4
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/usr/include/hwy/base.h" 2 3 4


# 1 "/usr/include/c++/11/atomic" 1 3 4
# 35 "/usr/include/c++/11/atomic" 3 4
       
# 36 "/usr/include/c++/11/atomic" 3








# 43 "/usr/include/c++/11/atomic" 3
namespace std __attribute__ ((__visibility__ ("default")))
{

# 56 "/usr/include/c++/11/atomic" 3
  template<typename _Tp>
    struct atomic;



  template<>
  struct atomic<bool>
  {
    using value_type = bool;

  private:
    __atomic_base<bool> _M_base;

  public:
    atomic() noexcept = default;
    ~atomic() noexcept = default;
    atomic(const atomic&) = delete;
    atomic& operator=(const atomic&) = delete;
    atomic& operator=(const atomic&) volatile = delete;

    constexpr atomic(bool __i) noexcept : _M_base(__i) { }

    bool
    operator=(bool __i) noexcept
    { return _M_base.operator=(__i); }

    bool
    operator=(bool __i) volatile noexcept
    { return _M_base.operator=(__i); }

    operator bool() const noexcept
    { return _M_base.load(); }

    operator bool() const volatile noexcept
    { return _M_base.load(); }

    bool
    is_lock_free() const noexcept { return _M_base.is_lock_free(); }

    bool
    is_lock_free() const volatile noexcept { return _M_base.is_lock_free(); }





    void
    store(bool __i, memory_order __m = memory_order_seq_cst) noexcept
    { _M_base.store(__i, __m); }

    void
    store(bool __i, memory_order __m = memory_order_seq_cst) volatile noexcept
    { _M_base.store(__i, __m); }

    bool
    load(memory_order __m = memory_order_seq_cst) const noexcept
    { return _M_base.load(__m); }

    bool
    load(memory_order __m = memory_order_seq_cst) const volatile noexcept
    { return _M_base.load(__m); }

    bool
    exchange(bool __i, memory_order __m = memory_order_seq_cst) noexcept
    { return _M_base.exchange(__i, __m); }

    bool
    exchange(bool __i,
      memory_order __m = memory_order_seq_cst) volatile noexcept
    { return _M_base.exchange(__i, __m); }

    bool
    compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
     memory_order __m2) noexcept
    { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }

    bool
    compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
     memory_order __m2) volatile noexcept
    { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }

    bool
    compare_exchange_weak(bool& __i1, bool __i2,
     memory_order __m = memory_order_seq_cst) noexcept
    { return _M_base.compare_exchange_weak(__i1, __i2, __m); }

    bool
    compare_exchange_weak(bool& __i1, bool __i2,
       memory_order __m = memory_order_seq_cst) volatile noexcept
    { return _M_base.compare_exchange_weak(__i1, __i2, __m); }

    bool
    compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
       memory_order __m2) noexcept
    { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }

    bool
    compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
       memory_order __m2) volatile noexcept
    { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }

    bool
    compare_exchange_strong(bool& __i1, bool __i2,
       memory_order __m = memory_order_seq_cst) noexcept
    { return _M_base.compare_exchange_strong(__i1, __i2, __m); }

    bool
    compare_exchange_strong(bool& __i1, bool __i2,
      memory_order __m = memory_order_seq_cst) volatile noexcept
    { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
# 182 "/usr/include/c++/11/atomic" 3
  };
# 195 "/usr/include/c++/11/atomic" 3
  template<typename _Tp>
    struct atomic
    {
      using value_type = _Tp;

    private:

      static constexpr int _S_min_alignment
 = (sizeof(_Tp) & (sizeof(_Tp) - 1)) || sizeof(_Tp) > 16
 ? 0 : sizeof(_Tp);

      static constexpr int _S_alignment
        = _S_min_alignment > alignof(_Tp) ? _S_min_alignment : alignof(_Tp);

      alignas(_S_alignment) _Tp _M_i ;

      static_assert(__is_trivially_copyable(_Tp),
      "std::atomic requires a trivially copyable type");

      static_assert(sizeof(_Tp) > 0,
      "Incomplete or zero-sized types are not supported");
# 224 "/usr/include/c++/11/atomic" 3
    public:
      atomic() = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(_Tp __i) noexcept : _M_i(__i) { }

      operator _Tp() const noexcept
      { return load(); }

      operator _Tp() const volatile noexcept
      { return load(); }

      _Tp
      operator=(_Tp __i) noexcept
      { store(__i); return __i; }

      _Tp
      operator=(_Tp __i) volatile noexcept
      { store(__i); return __i; }

      bool
      is_lock_free() const noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_i),
     reinterpret_cast<void *>(-_S_alignment));
      }

      bool
      is_lock_free() const volatile noexcept
      {

 return __atomic_is_lock_free(sizeof(_M_i),
     reinterpret_cast<void *>(-_S_alignment));
      }






      void
      store(_Tp __i, memory_order __m = memory_order_seq_cst) noexcept
      {
 __atomic_store(std::__addressof(_M_i), std::__addressof(__i), int(__m));
      }

      void
      store(_Tp __i, memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 __atomic_store(std::__addressof(_M_i), std::__addressof(__i), int(__m));
      }

      _Tp
      load(memory_order __m = memory_order_seq_cst) const noexcept
      {
 alignas(_Tp) unsigned char __buf[sizeof(_Tp)];
 _Tp* __ptr = reinterpret_cast<_Tp*>(__buf);
 __atomic_load(std::__addressof(_M_i), __ptr, int(__m));
 return *__ptr;
      }

      _Tp
      load(memory_order __m = memory_order_seq_cst) const volatile noexcept
      {
        alignas(_Tp) unsigned char __buf[sizeof(_Tp)];
 _Tp* __ptr = reinterpret_cast<_Tp*>(__buf);
 __atomic_load(std::__addressof(_M_i), __ptr, int(__m));
 return *__ptr;
      }

      _Tp
      exchange(_Tp __i, memory_order __m = memory_order_seq_cst) noexcept
      {
        alignas(_Tp) unsigned char __buf[sizeof(_Tp)];
 _Tp* __ptr = reinterpret_cast<_Tp*>(__buf);
 __atomic_exchange(std::__addressof(_M_i), std::__addressof(__i),
     __ptr, int(__m));
 return *__ptr;
      }

      _Tp
      exchange(_Tp __i,
        memory_order __m = memory_order_seq_cst) volatile noexcept
      {
        alignas(_Tp) unsigned char __buf[sizeof(_Tp)];
 _Tp* __ptr = reinterpret_cast<_Tp*>(__buf);
 __atomic_exchange(std::__addressof(_M_i), std::__addressof(__i),
     __ptr, int(__m));
 return *__ptr;
      }

      bool
      compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
       memory_order __f) noexcept
      {
 return __atomic_compare_exchange(std::__addressof(_M_i),
      std::__addressof(__e),
      std::__addressof(__i),
      true, int(__s), int(__f));
      }

      bool
      compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
       memory_order __f) volatile noexcept
      {
 return __atomic_compare_exchange(std::__addressof(_M_i),
      std::__addressof(__e),
      std::__addressof(__i),
      true, int(__s), int(__f));
      }

      bool
      compare_exchange_weak(_Tp& __e, _Tp __i,
       memory_order __m = memory_order_seq_cst) noexcept
      { return compare_exchange_weak(__e, __i, __m,
                                     __cmpexch_failure_order(__m)); }

      bool
      compare_exchange_weak(_Tp& __e, _Tp __i,
       memory_order __m = memory_order_seq_cst) volatile noexcept
      { return compare_exchange_weak(__e, __i, __m,
                                     __cmpexch_failure_order(__m)); }

      bool
      compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
         memory_order __f) noexcept
      {
 return __atomic_compare_exchange(std::__addressof(_M_i),
      std::__addressof(__e),
      std::__addressof(__i),
      false, int(__s), int(__f));
      }

      bool
      compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
         memory_order __f) volatile noexcept
      {
 return __atomic_compare_exchange(std::__addressof(_M_i),
      std::__addressof(__e),
      std::__addressof(__i),
      false, int(__s), int(__f));
      }

      bool
      compare_exchange_strong(_Tp& __e, _Tp __i,
          memory_order __m = memory_order_seq_cst) noexcept
      { return compare_exchange_strong(__e, __i, __m,
                                       __cmpexch_failure_order(__m)); }

      bool
      compare_exchange_strong(_Tp& __e, _Tp __i,
       memory_order __m = memory_order_seq_cst) volatile noexcept
      { return compare_exchange_strong(__e, __i, __m,
                                       __cmpexch_failure_order(__m)); }
# 409 "/usr/include/c++/11/atomic" 3
    };



  template<typename _Tp>
    struct atomic<_Tp*>
    {
      using value_type = _Tp*;
      using difference_type = ptrdiff_t;

      typedef _Tp* __pointer_type;
      typedef __atomic_base<_Tp*> __base_type;
      __base_type _M_b;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__pointer_type __p) noexcept : _M_b(__p) { }

      operator __pointer_type() const noexcept
      { return __pointer_type(_M_b); }

      operator __pointer_type() const volatile noexcept
      { return __pointer_type(_M_b); }

      __pointer_type
      operator=(__pointer_type __p) noexcept
      { return _M_b.operator=(__p); }

      __pointer_type
      operator=(__pointer_type __p) volatile noexcept
      { return _M_b.operator=(__p); }

      __pointer_type
      operator++(int) noexcept
      {



 return _M_b++;
      }

      __pointer_type
      operator++(int) volatile noexcept
      {



 return _M_b++;
      }

      __pointer_type
      operator--(int) noexcept
      {



 return _M_b--;
      }

      __pointer_type
      operator--(int) volatile noexcept
      {



 return _M_b--;
      }

      __pointer_type
      operator++() noexcept
      {



 return ++_M_b;
      }

      __pointer_type
      operator++() volatile noexcept
      {



 return ++_M_b;
      }

      __pointer_type
      operator--() noexcept
      {



 return --_M_b;
      }

      __pointer_type
      operator--() volatile noexcept
      {



 return --_M_b;
      }

      __pointer_type
      operator+=(ptrdiff_t __d) noexcept
      {



 return _M_b.operator+=(__d);
      }

      __pointer_type
      operator+=(ptrdiff_t __d) volatile noexcept
      {



 return _M_b.operator+=(__d);
      }

      __pointer_type
      operator-=(ptrdiff_t __d) noexcept
      {



 return _M_b.operator-=(__d);
      }

      __pointer_type
      operator-=(ptrdiff_t __d) volatile noexcept
      {



 return _M_b.operator-=(__d);
      }

      bool
      is_lock_free() const noexcept
      { return _M_b.is_lock_free(); }

      bool
      is_lock_free() const volatile noexcept
      { return _M_b.is_lock_free(); }





      void
      store(__pointer_type __p,
     memory_order __m = memory_order_seq_cst) noexcept
      { return _M_b.store(__p, __m); }

      void
      store(__pointer_type __p,
     memory_order __m = memory_order_seq_cst) volatile noexcept
      { return _M_b.store(__p, __m); }

      __pointer_type
      load(memory_order __m = memory_order_seq_cst) const noexcept
      { return _M_b.load(__m); }

      __pointer_type
      load(memory_order __m = memory_order_seq_cst) const volatile noexcept
      { return _M_b.load(__m); }

      __pointer_type
      exchange(__pointer_type __p,
        memory_order __m = memory_order_seq_cst) noexcept
      { return _M_b.exchange(__p, __m); }

      __pointer_type
      exchange(__pointer_type __p,
        memory_order __m = memory_order_seq_cst) volatile noexcept
      { return _M_b.exchange(__p, __m); }

      bool
      compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
       memory_order __m1, memory_order __m2) noexcept
      { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }

      bool
      compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
       memory_order __m1,
       memory_order __m2) volatile noexcept
      { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }

      bool
      compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
       memory_order __m = memory_order_seq_cst) noexcept
      {
 return compare_exchange_weak(__p1, __p2, __m,
         __cmpexch_failure_order(__m));
      }

      bool
      compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
      memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return compare_exchange_weak(__p1, __p2, __m,
         __cmpexch_failure_order(__m));
      }

      bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
         memory_order __m1, memory_order __m2) noexcept
      { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }

      bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
         memory_order __m1,
         memory_order __m2) volatile noexcept
      { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }

      bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
         memory_order __m = memory_order_seq_cst) noexcept
      {
 return _M_b.compare_exchange_strong(__p1, __p2, __m,
         __cmpexch_failure_order(__m));
      }

      bool
      compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
      memory_order __m = memory_order_seq_cst) volatile noexcept
      {
 return _M_b.compare_exchange_strong(__p1, __p2, __m,
         __cmpexch_failure_order(__m));
      }
# 662 "/usr/include/c++/11/atomic" 3
      __pointer_type
      fetch_add(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) noexcept
      {



 return _M_b.fetch_add(__d, __m);
      }

      __pointer_type
      fetch_add(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      {



 return _M_b.fetch_add(__d, __m);
      }

      __pointer_type
      fetch_sub(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) noexcept
      {



 return _M_b.fetch_sub(__d, __m);
      }

      __pointer_type
      fetch_sub(ptrdiff_t __d,
  memory_order __m = memory_order_seq_cst) volatile noexcept
      {



 return _M_b.fetch_sub(__d, __m);
      }
    };



  template<>
    struct atomic<char> : __atomic_base<char>
    {
      typedef char __integral_type;
      typedef __atomic_base<char> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<signed char> : __atomic_base<signed char>
    {
      typedef signed char __integral_type;
      typedef __atomic_base<signed char> __base_type;

      atomic() noexcept= default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<unsigned char> : __atomic_base<unsigned char>
    {
      typedef unsigned char __integral_type;
      typedef __atomic_base<unsigned char> __base_type;

      atomic() noexcept= default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<short> : __atomic_base<short>
    {
      typedef short __integral_type;
      typedef __atomic_base<short> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<unsigned short> : __atomic_base<unsigned short>
    {
      typedef unsigned short __integral_type;
      typedef __atomic_base<unsigned short> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<int> : __atomic_base<int>
    {
      typedef int __integral_type;
      typedef __atomic_base<int> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<unsigned int> : __atomic_base<unsigned int>
    {
      typedef unsigned int __integral_type;
      typedef __atomic_base<unsigned int> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<long> : __atomic_base<long>
    {
      typedef long __integral_type;
      typedef __atomic_base<long> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<unsigned long> : __atomic_base<unsigned long>
    {
      typedef unsigned long __integral_type;
      typedef __atomic_base<unsigned long> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<long long> : __atomic_base<long long>
    {
      typedef long long __integral_type;
      typedef __atomic_base<long long> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<unsigned long long> : __atomic_base<unsigned long long>
    {
      typedef unsigned long long __integral_type;
      typedef __atomic_base<unsigned long long> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<wchar_t> : __atomic_base<wchar_t>
    {
      typedef wchar_t __integral_type;
      typedef __atomic_base<wchar_t> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };
# 1006 "/usr/include/c++/11/atomic" 3
  template<>
    struct atomic<char16_t> : __atomic_base<char16_t>
    {
      typedef char16_t __integral_type;
      typedef __atomic_base<char16_t> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };


  template<>
    struct atomic<char32_t> : __atomic_base<char32_t>
    {
      typedef char32_t __integral_type;
      typedef __atomic_base<char32_t> __base_type;

      atomic() noexcept = default;
      ~atomic() noexcept = default;
      atomic(const atomic&) = delete;
      atomic& operator=(const atomic&) = delete;
      atomic& operator=(const atomic&) volatile = delete;

      constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }

      using __base_type::operator __integral_type;
      using __base_type::operator=;




    };



  typedef atomic<bool> atomic_bool;


  typedef atomic<char> atomic_char;


  typedef atomic<signed char> atomic_schar;


  typedef atomic<unsigned char> atomic_uchar;


  typedef atomic<short> atomic_short;


  typedef atomic<unsigned short> atomic_ushort;


  typedef atomic<int> atomic_int;


  typedef atomic<unsigned int> atomic_uint;


  typedef atomic<long> atomic_long;


  typedef atomic<unsigned long> atomic_ulong;


  typedef atomic<long long> atomic_llong;


  typedef atomic<unsigned long long> atomic_ullong;


  typedef atomic<wchar_t> atomic_wchar_t;







  typedef atomic<char16_t> atomic_char16_t;


  typedef atomic<char32_t> atomic_char32_t;






  typedef atomic<int8_t> atomic_int8_t;


  typedef atomic<uint8_t> atomic_uint8_t;


  typedef atomic<int16_t> atomic_int16_t;


  typedef atomic<uint16_t> atomic_uint16_t;


  typedef atomic<int32_t> atomic_int32_t;


  typedef atomic<uint32_t> atomic_uint32_t;


  typedef atomic<int64_t> atomic_int64_t;


  typedef atomic<uint64_t> atomic_uint64_t;



  typedef atomic<int_least8_t> atomic_int_least8_t;


  typedef atomic<uint_least8_t> atomic_uint_least8_t;


  typedef atomic<int_least16_t> atomic_int_least16_t;


  typedef atomic<uint_least16_t> atomic_uint_least16_t;


  typedef atomic<int_least32_t> atomic_int_least32_t;


  typedef atomic<uint_least32_t> atomic_uint_least32_t;


  typedef atomic<int_least64_t> atomic_int_least64_t;


  typedef atomic<uint_least64_t> atomic_uint_least64_t;



  typedef atomic<int_fast8_t> atomic_int_fast8_t;


  typedef atomic<uint_fast8_t> atomic_uint_fast8_t;


  typedef atomic<int_fast16_t> atomic_int_fast16_t;


  typedef atomic<uint_fast16_t> atomic_uint_fast16_t;


  typedef atomic<int_fast32_t> atomic_int_fast32_t;


  typedef atomic<uint_fast32_t> atomic_uint_fast32_t;


  typedef atomic<int_fast64_t> atomic_int_fast64_t;


  typedef atomic<uint_fast64_t> atomic_uint_fast64_t;




  typedef atomic<intptr_t> atomic_intptr_t;


  typedef atomic<uintptr_t> atomic_uintptr_t;


  typedef atomic<size_t> atomic_size_t;


  typedef atomic<ptrdiff_t> atomic_ptrdiff_t;



  typedef atomic<intmax_t> atomic_intmax_t;


  typedef atomic<uintmax_t> atomic_uintmax_t;



  inline bool
  atomic_flag_test_and_set_explicit(atomic_flag* __a,
        memory_order __m) noexcept
  { return __a->test_and_set(__m); }

  inline bool
  atomic_flag_test_and_set_explicit(volatile atomic_flag* __a,
        memory_order __m) noexcept
  { return __a->test_and_set(__m); }

  inline void
  atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m) noexcept
  { __a->clear(__m); }

  inline void
  atomic_flag_clear_explicit(volatile atomic_flag* __a,
        memory_order __m) noexcept
  { __a->clear(__m); }

  inline bool
  atomic_flag_test_and_set(atomic_flag* __a) noexcept
  { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }

  inline bool
  atomic_flag_test_and_set(volatile atomic_flag* __a) noexcept
  { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }

  inline void
  atomic_flag_clear(atomic_flag* __a) noexcept
  { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }

  inline void
  atomic_flag_clear(volatile atomic_flag* __a) noexcept
  { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }


  template<typename _Tp>
    using __atomic_val_t = typename atomic<_Tp>::value_type;
  template<typename _Tp>
    using __atomic_diff_t = typename atomic<_Tp>::difference_type;



  template<typename _ITp>
    inline bool
    atomic_is_lock_free(const atomic<_ITp>* __a) noexcept
    { return __a->is_lock_free(); }

  template<typename _ITp>
    inline bool
    atomic_is_lock_free(const volatile atomic<_ITp>* __a) noexcept
    { return __a->is_lock_free(); }

  template<typename _ITp>
    inline void
    atomic_init(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept
    { __a->store(__i, memory_order_relaxed); }

  template<typename _ITp>
    inline void
    atomic_init(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept
    { __a->store(__i, memory_order_relaxed); }

  template<typename _ITp>
    inline void
    atomic_store_explicit(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i,
     memory_order __m) noexcept
    { __a->store(__i, __m); }

  template<typename _ITp>
    inline void
    atomic_store_explicit(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i,
     memory_order __m) noexcept
    { __a->store(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_load_explicit(const atomic<_ITp>* __a, memory_order __m) noexcept
    { return __a->load(__m); }

  template<typename _ITp>
    inline _ITp
    atomic_load_explicit(const volatile atomic<_ITp>* __a,
    memory_order __m) noexcept
    { return __a->load(__m); }

  template<typename _ITp>
    inline _ITp
    atomic_exchange_explicit(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i,
        memory_order __m) noexcept
    { return __a->exchange(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_exchange_explicit(volatile atomic<_ITp>* __a,
        __atomic_val_t<_ITp> __i,
        memory_order __m) noexcept
    { return __a->exchange(__i, __m); }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_weak_explicit(atomic<_ITp>* __a,
       __atomic_val_t<_ITp>* __i1,
       __atomic_val_t<_ITp> __i2,
       memory_order __m1,
       memory_order __m2) noexcept
    { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_weak_explicit(volatile atomic<_ITp>* __a,
       __atomic_val_t<_ITp>* __i1,
       __atomic_val_t<_ITp> __i2,
       memory_order __m1,
       memory_order __m2) noexcept
    { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_strong_explicit(atomic<_ITp>* __a,
         __atomic_val_t<_ITp>* __i1,
         __atomic_val_t<_ITp> __i2,
         memory_order __m1,
         memory_order __m2) noexcept
    { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_strong_explicit(volatile atomic<_ITp>* __a,
         __atomic_val_t<_ITp>* __i1,
         __atomic_val_t<_ITp> __i2,
         memory_order __m1,
         memory_order __m2) noexcept
    { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }


  template<typename _ITp>
    inline void
    atomic_store(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept
    { atomic_store_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline void
    atomic_store(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept
    { atomic_store_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_load(const atomic<_ITp>* __a) noexcept
    { return atomic_load_explicit(__a, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_load(const volatile atomic<_ITp>* __a) noexcept
    { return atomic_load_explicit(__a, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_exchange(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept
    { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_exchange(volatile atomic<_ITp>* __a,
      __atomic_val_t<_ITp> __i) noexcept
    { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_weak(atomic<_ITp>* __a,
     __atomic_val_t<_ITp>* __i1,
     __atomic_val_t<_ITp> __i2) noexcept
    {
      return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
         memory_order_seq_cst,
         memory_order_seq_cst);
    }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_weak(volatile atomic<_ITp>* __a,
     __atomic_val_t<_ITp>* __i1,
     __atomic_val_t<_ITp> __i2) noexcept
    {
      return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
         memory_order_seq_cst,
         memory_order_seq_cst);
    }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_strong(atomic<_ITp>* __a,
       __atomic_val_t<_ITp>* __i1,
       __atomic_val_t<_ITp> __i2) noexcept
    {
      return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
           memory_order_seq_cst,
           memory_order_seq_cst);
    }

  template<typename _ITp>
    inline bool
    atomic_compare_exchange_strong(volatile atomic<_ITp>* __a,
       __atomic_val_t<_ITp>* __i1,
       __atomic_val_t<_ITp> __i2) noexcept
    {
      return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
           memory_order_seq_cst,
           memory_order_seq_cst);
    }
# 1444 "/usr/include/c++/11/atomic" 3
  template<typename _ITp>
    inline _ITp
    atomic_fetch_add_explicit(atomic<_ITp>* __a,
         __atomic_diff_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_add(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_add_explicit(volatile atomic<_ITp>* __a,
         __atomic_diff_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_add(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_sub_explicit(atomic<_ITp>* __a,
         __atomic_diff_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_sub(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_sub_explicit(volatile atomic<_ITp>* __a,
         __atomic_diff_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_sub(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_and_explicit(__atomic_base<_ITp>* __a,
         __atomic_val_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_and(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_and_explicit(volatile __atomic_base<_ITp>* __a,
         __atomic_val_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_and(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_or_explicit(__atomic_base<_ITp>* __a,
        __atomic_val_t<_ITp> __i,
        memory_order __m) noexcept
    { return __a->fetch_or(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_or_explicit(volatile __atomic_base<_ITp>* __a,
        __atomic_val_t<_ITp> __i,
        memory_order __m) noexcept
    { return __a->fetch_or(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a,
         __atomic_val_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_xor(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_xor_explicit(volatile __atomic_base<_ITp>* __a,
         __atomic_val_t<_ITp> __i,
         memory_order __m) noexcept
    { return __a->fetch_xor(__i, __m); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_add(atomic<_ITp>* __a,
       __atomic_diff_t<_ITp> __i) noexcept
    { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_add(volatile atomic<_ITp>* __a,
       __atomic_diff_t<_ITp> __i) noexcept
    { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_sub(atomic<_ITp>* __a,
       __atomic_diff_t<_ITp> __i) noexcept
    { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_sub(volatile atomic<_ITp>* __a,
       __atomic_diff_t<_ITp> __i) noexcept
    { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_and(__atomic_base<_ITp>* __a,
       __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_and(volatile __atomic_base<_ITp>* __a,
       __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_or(__atomic_base<_ITp>* __a,
      __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_or(volatile __atomic_base<_ITp>* __a,
      __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_xor(__atomic_base<_ITp>* __a,
       __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }

  template<typename _ITp>
    inline _ITp
    atomic_fetch_xor(volatile __atomic_base<_ITp>* __a,
       __atomic_val_t<_ITp> __i) noexcept
    { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
# 1642 "/usr/include/c++/11/atomic" 3

}
# 24 "/usr/include/hwy/base.h" 2 3 4
# 246 "/usr/include/hwy/base.h" 3 4
namespace hwy {





static constexpr size_t kMaxVectorSize = 64;






__attribute__((noreturn)) void __attribute__((__format__(__printf__, 3, 4)))
    Abort(const char* file, int line, const char* format, ...);

template <typename T>
constexpr bool IsFloat() {
  return T(1.25) != T(1);
}

template <typename T>
constexpr bool IsSigned() {
  return T(0) > T(-1);
}


template <typename T>
constexpr T LimitsMax() {
  return IsSigned<T>() ? T((1ULL << (sizeof(T) * 8 - 1)) - 1)
                       : static_cast<T>(~0ull);
}
template <typename T>
constexpr T LimitsMin() {
  return IsSigned<T>() ? T(-1) - LimitsMax<T>() : T(0);
}


template <bool Condition, class T>
struct EnableIfT {};
template <class T>
struct EnableIfT<true, T> {
  using type = T;
};

template <bool Condition, class T = void>
using EnableIf = typename EnableIfT<Condition, T>::type;

template <typename T1, typename T2>
constexpr inline T1 DivCeil(T1 a, T2 b) {
  return (a + b - 1) / b;
}


constexpr inline size_t RoundUpTo(size_t what, size_t align) {
  return DivCeil(what, align) * align;
}


static inline __attribute__((always_inline)) __attribute__((unused)) size_t
Num0BitsBelowLS1Bit_Nonzero32(const uint32_t x) {





  return static_cast<size_t>(__builtin_ctz(x));

}

}
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h" 2





# 26 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h"
namespace jxl {
# 46 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/arch_specific.h"
struct ProcessorTopology {
  size_t logical_per_core = 1;
  size_t cores_per_package = 1;
  size_t packages = 1;
};


Status DetectProcessorTopology(ProcessorTopology* pt);



double NominalClockRate();




double InvariantTicksPerSecond();

}
# 26 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/cache_aligned.h" 2


namespace jxl {


class CacheAligned {
 public:
  static void PrintStats();

  static constexpr size_t kPointerSize = sizeof(void*);
  static constexpr size_t kCacheLineSize = 64;

  static constexpr size_t kAlignment = 2 * kCacheLineSize;


  static constexpr size_t kAlias = 2048;


  static size_t NextOffset();





  static void* Allocate(size_t payload_size, size_t offset);

  static void* Allocate(const size_t payload_size) {
    return Allocate(payload_size, NextOffset());
  }

  static void Free(const void* aligned_pointer);
};


struct CacheAlignedDeleter {
  void operator()(uint8_t* aligned_pointer) const {
    return CacheAligned::Free(aligned_pointer);
  }
};

using CacheAlignedUniquePtr = std::unique_ptr<uint8_t[], CacheAlignedDeleter>;


static inline CacheAlignedUniquePtr AllocateArray(const size_t bytes) {
  return CacheAlignedUniquePtr(
      static_cast<uint8_t*>(CacheAligned::Allocate(bytes)),
      CacheAlignedDeleter());
}

static inline CacheAlignedUniquePtr AllocateArray(const size_t bytes,
                                                  const size_t offset) {
  return CacheAlignedUniquePtr(
      static_cast<uint8_t*>(CacheAligned::Allocate(bytes, offset)),
      CacheAlignedDeleter());
}

}
# 27 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h" 2


namespace jxl {



struct PlaneBase {
  PlaneBase() : xsize_(0), ysize_(0), bytes_per_row_(0), bytes_(nullptr) {}
  PlaneBase(size_t xsize, size_t ysize, size_t sizeof_t);



  PlaneBase(const PlaneBase& other) = delete;
  PlaneBase& operator=(const PlaneBase& other) = delete;


  PlaneBase(PlaneBase&& other) noexcept = default;


  PlaneBase& operator=(PlaneBase&& other) noexcept = default;

  void Swap(PlaneBase& other);




  void ShrinkTo(const size_t xsize, const size_t ysize) {
    xsize_ = static_cast<uint32_t>(xsize);
    ysize_ = static_cast<uint32_t>(ysize);


  }


  inline __attribute__((always_inline)) size_t xsize() const { return xsize_; }
  inline __attribute__((always_inline)) size_t ysize() const { return ysize_; }


  inline __attribute__((always_inline)) size_t bytes_per_row() const { return bytes_per_row_; }



  inline __attribute__((always_inline)) uint8_t* bytes() {
    void* p = bytes_.get();
    return static_cast<uint8_t * __restrict__>(__builtin_assume_aligned((p), (64)));
  }
  inline __attribute__((always_inline)) const uint8_t* bytes() const {
    const void* p = bytes_.get();
    return static_cast<const uint8_t * __restrict__>(__builtin_assume_aligned((p), (64)));
  }

 protected:

  inline __attribute__((always_inline)) void* VoidRow(const size_t y) const {







    void* row = bytes_.get() + y * bytes_per_row_;
    return __builtin_assume_aligned((row), (64));
  }

  enum class Padding {

    kRoundUp,




    kUnaligned
  };




  void InitializePadding(size_t sizeof_t, Padding padding);


  uint32_t xsize_;
  uint32_t ysize_;
  size_t bytes_per_row_;
  CacheAlignedUniquePtr bytes_;
};
# 135 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h"
template <typename ComponentType>
class Plane : public PlaneBase {
 public:
  using T = ComponentType;
  static constexpr size_t kNumPlanes = 1;

  Plane() = default;
  Plane(const size_t xsize, const size_t ysize)
      : PlaneBase(xsize, ysize, sizeof(T)) {}

  void InitializePaddingForUnalignedAccesses() {
    InitializePadding(sizeof(T), Padding::kUnaligned);
  }

  inline __attribute__((always_inline)) T* Row(const size_t y) { return static_cast<T*>(VoidRow(y)); }


  inline __attribute__((always_inline)) const T* Row(const size_t y) const {
    return static_cast<const T*>(VoidRow(y));
  }


  inline __attribute__((always_inline)) const T* ConstRow(const size_t y) const {
    return static_cast<const T*>(VoidRow(y));
  }




  inline __attribute__((always_inline)) intptr_t PixelsPerRow() const {
    return static_cast<intptr_t>(bytes_per_row_ / sizeof(T));
  }
};

using ImageSB = Plane<int8_t>;
using ImageB = Plane<uint8_t>;
using ImageS = Plane<int16_t>;
using ImageU = Plane<uint16_t>;
using ImageI = Plane<int32_t>;
using ImageF = Plane<float>;
using ImageD = Plane<double>;


template <class Image1, class Image2>
bool SameSize(const Image1& image1, const Image2& image2) {
  return image1.xsize() == image2.xsize() && image1.ysize() == image2.ysize();
}

template <typename T>
class Image3;





class Rect {
 public:


  constexpr Rect(size_t xbegin, size_t ybegin, size_t xsize_max,
                 size_t ysize_max, size_t xend, size_t yend)
      : x0_(xbegin),
        y0_(ybegin),
        xsize_(ClampedSize(xbegin, xsize_max, xend)),
        ysize_(ClampedSize(ybegin, ysize_max, yend)) {}


  constexpr Rect(size_t xbegin, size_t ybegin, size_t xsize, size_t ysize)
      : x0_(xbegin), y0_(ybegin), xsize_(xsize), ysize_(ysize) {}


  template <typename Image>
  explicit Rect(const Image& image)
      : Rect(0, 0, image.xsize(), image.ysize()) {}

  Rect() : Rect(0, 0, 0, 0) {}

  Rect(const Rect&) = default;
  Rect& operator=(const Rect&) = default;

  Rect Subrect(size_t xbegin, size_t ybegin, size_t xsize_max,
               size_t ysize_max) {
    return Rect(x0_ + xbegin, y0_ + ybegin, xsize_max, ysize_max, x0_ + xsize_,
                y0_ + ysize_);
  }

  template <typename T>
  T* Row(Plane<T>* image, size_t y) const {
    return image->Row(y + y0_) + x0_;
  }

  template <typename T>
  const T* Row(const Plane<T>* image, size_t y) const {
    return image->Row(y + y0_) + x0_;
  }

  template <typename T>
  T* PlaneRow(Image3<T>* image, const size_t c, size_t y) const {
    return image->PlaneRow(c, y + y0_) + x0_;
  }

  template <typename T>
  const T* ConstRow(const Plane<T>& image, size_t y) const {
    return image.ConstRow(y + y0_) + x0_;
  }

  template <typename T>
  const T* ConstPlaneRow(const Image3<T>& image, size_t c, size_t y) const {
    return image.ConstPlaneRow(c, y + y0_) + x0_;
  }



  template <class ImageT>
  bool IsInside(const ImageT& image) const {
    return (x0_ + xsize_ <= image.xsize()) && (y0_ + ysize_ <= image.ysize());
  }

  size_t x0() const { return x0_; }
  size_t y0() const { return y0_; }
  size_t xsize() const { return xsize_; }
  size_t ysize() const { return ysize_; }

 private:

  static constexpr size_t ClampedSize(size_t begin, size_t size_max,
                                      size_t end) {
    return (begin + size_max <= end) ? size_max
                                     : (end > begin ? end - begin : 0);
  }

  size_t x0_;
  size_t y0_;

  size_t xsize_;
  size_t ysize_;
};
# 291 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h"
template <typename ComponentType>
class Image3 {
 public:
  using T = ComponentType;
  using PlaneT = jxl::Plane<T>;
  static constexpr size_t kNumPlanes = 3;

  Image3() : planes_{PlaneT(), PlaneT(), PlaneT()} {}

  Image3(const size_t xsize, const size_t ysize)
      : planes_{PlaneT(xsize, ysize), PlaneT(xsize, ysize),
                PlaneT(xsize, ysize)} {}

  Image3(Image3&& other) noexcept {
    for (size_t i = 0; i < kNumPlanes; i++) {
      planes_[i] = std::move(other.planes_[i]);
    }
  }

  Image3(PlaneT&& plane0, PlaneT&& plane1, PlaneT&& plane2) {
    do { if (!(SameSize(plane0, plane1))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h", 311,"SameSize(plane0, plane1)"); } } while (0); ::jxl::Abort(); } } while (0);
    do { if (!(SameSize(plane0, plane2))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image.h", 312,"SameSize(plane0, plane2)"); } } while (0); ::jxl::Abort(); } } while (0);
    planes_[0] = std::move(plane0);
    planes_[1] = std::move(plane1);
    planes_[2] = std::move(plane2);
  }



  Image3(const Image3& other) = delete;
  Image3& operator=(const Image3& other) = delete;

  Image3& operator=(Image3&& other) noexcept {
    for (size_t i = 0; i < kNumPlanes; i++) {
      planes_[i] = std::move(other.planes_[i]);
    }
    return *this;
  }


  inline __attribute__((always_inline)) T* PlaneRow(const size_t c, const size_t y) {


    PlaneRowBoundsCheck(c, y);
    const size_t row_offset = y * planes_[0].bytes_per_row();
    void* row = planes_[c].bytes() + row_offset;
    return static_cast<T * __restrict__>(__builtin_assume_aligned((row), (64)));
  }


  inline __attribute__((always_inline)) const T* PlaneRow(const size_t c, const size_t y) const {
    PlaneRowBoundsCheck(c, y);
    const size_t row_offset = y * planes_[0].bytes_per_row();
    const void* row = planes_[c].bytes() + row_offset;
    return static_cast<const T * __restrict__>(__builtin_assume_aligned((row), (64)));
  }


  inline __attribute__((always_inline)) const T* ConstPlaneRow(const size_t c, const size_t y) const {
    PlaneRowBoundsCheck(c, y);
    return PlaneRow(c, y);
  }

  inline __attribute__((always_inline)) const PlaneT& Plane(size_t idx) const { return planes_[idx]; }

  inline __attribute__((always_inline)) PlaneT& Plane(size_t idx) { return planes_[idx]; }

  void Swap(Image3& other) {
    for (size_t c = 0; c < 3; ++c) {
      other.planes_[c].Swap(planes_[c]);
    }
  }

  void ShrinkTo(const size_t xsize, const size_t ysize) {
    for (PlaneT& plane : planes_) {
      plane.ShrinkTo(xsize, ysize);
    }
  }


  inline __attribute__((always_inline)) size_t xsize() const { return planes_[0].xsize(); }
  inline __attribute__((always_inline)) size_t ysize() const { return planes_[0].ysize(); }



  inline __attribute__((always_inline)) size_t bytes_per_row() const { return planes_[0].bytes_per_row(); }



  inline __attribute__((always_inline)) intptr_t PixelsPerRow() const { return planes_[0].PixelsPerRow(); }

 private:
  void PlaneRowBoundsCheck(const size_t c, const size_t y) const {







  }

 private:
  PlaneT planes_[kNumPlanes];
};

using Image3B = Image3<uint8_t>;
using Image3S = Image3<int16_t>;
using Image3U = Image3<uint16_t>;
using Image3I = Image3<int32_t>;
using Image3F = Image3<float>;
using Image3D = Image3<double>;

}
# 28 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h" 2

namespace jxl {

template <typename T>
void CopyImageTo(const Plane<T>& from, Plane<T>* __restrict__ to) {
  ;
  do { if (!(SameSize(from, *to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 34,"SameSize(from, *to)"); } } while (0); ::jxl::Abort(); } } while (0);
  for (size_t y = 0; y < from.ysize(); ++y) {
    const T* __restrict__ row_from = from.ConstRow(y);
    T* __restrict__ row_to = to->Row(y);
    memcpy(row_to, row_from, from.xsize() * sizeof(T));
  }
}


template <typename T>
Plane<T> CopyImage(const Plane<T>& from) {
  Plane<T> to(from.xsize(), from.ysize());
  CopyImageTo(from, &to);
  return to;
}


template <typename T>
void CopyImageTo(const Rect& rect_from, const Plane<T>& from,
                 const Rect& rect_to, Plane<T>* __restrict__ to) {
  ;
  do { if (!(SameSize(rect_from, rect_to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 55,"SameSize(rect_from, rect_to)"); } } while (0); ::jxl::Abort(); } } while (0);
  for (size_t y = 0; y < rect_from.ysize(); ++y) {
    const T* __restrict__ row_from = rect_from.ConstRow(from, y);
    T* __restrict__ row_to = rect_to.Row(to, y);
    memcpy(row_to, row_from, rect_from.xsize() * sizeof(T));
  }
}


template <typename T>
Plane<T> CopyImage(const Rect& rect, const Plane<T>& image) {
  Plane<T> copy(rect.xsize(), rect.ysize());
  CopyImageTo(rect, image, &copy);
  return copy;
}


template <typename T>
void CopyImageTo(const Rect& rect_from, const Image3<T>& from,
                 const Rect& rect_to, Image3<T>* __restrict__ to) {
  ;
  do { if (!(SameSize(rect_from, rect_to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 76,"SameSize(rect_from, rect_to)"); } } while (0); ::jxl::Abort(); } } while (0);
  for (size_t c = 0; c < 3; c++) {
    CopyImageTo(rect_from, from.Plane(c), rect_to, &to->Plane(c));
  }
}

template <typename T, typename U>
void ConvertPlaneAndClamp(const Rect& rect_from, const Plane<T>& from,
                          const Rect& rect_to, Plane<U>* __restrict__ to) {
  ;
  do { if (!(SameSize(rect_from, rect_to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 86,"SameSize(rect_from, rect_to)"); } } while (0); ::jxl::Abort(); } } while (0);
  using M = decltype(T() + U());
  for (size_t y = 0; y < rect_to.ysize(); ++y) {
    const T* __restrict__ row_from = rect_from.ConstRow(from, y);
    U* __restrict__ row_to = rect_to.Row(to, y);
    for (size_t x = 0; x < rect_to.xsize(); ++x) {
      row_to[x] =
          std::min<M>(std::max<M>(row_from[x], std::numeric_limits<U>::min()),
                      std::numeric_limits<U>::max());
    }
  }
}


template <typename T>
void CopyImageTo(const T& from, T* __restrict__ to) {
  return CopyImageTo(Rect(from), from, Rect(*to), to);
}


template <typename T>
void CopyImageTo(const Rect& rect_from, const T& from, T* __restrict__ to) {
  return CopyImageTo(rect_from, from, Rect(*to), to);
}


template <typename T>
void CopyImageTo(const T& from, const Rect& rect_to, T* __restrict__ to) {
  return CopyImageTo(Rect(from), from, rect_to, to);
}


template <typename T>
Image3<T> CopyImage(const Image3<T>& from) {
  Image3<T> copy(from.xsize(), from.ysize());
  CopyImageTo(from, &copy);
  return copy;
}


template <typename T>
Image3<T> CopyImage(const Rect& rect, const Image3<T>& from) {
  Image3<T> to(rect.xsize(), rect.ysize());
  CopyImageTo(rect, from.Plane(0), to.Plane(0));
  CopyImageTo(rect, from.Plane(1), to.Plane(1));
  CopyImageTo(rect, from.Plane(2), to.Plane(2));
  return to;
}



template <typename T>
void SetBorder(const size_t thickness, const T value, Image3<T>* image) {
  const size_t xsize = image->xsize();
  const size_t ysize = image->ysize();

  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < std::min(thickness, ysize); ++y) {
      T* __restrict__ row = image->PlaneRow(c, y);
      std::fill(row, row + xsize, value);
    }


    for (size_t y = ysize - thickness; y < ysize; ++y) {
      T* __restrict__ row = image->PlaneRow(c, y);
      std::fill(row, row + xsize, value);
    }



    if (ysize >= 2 * thickness) {
      for (size_t y = thickness; y < ysize - thickness; ++y) {
        T* __restrict__ row = image->PlaneRow(c, y);
        std::fill(row, row + thickness, value);
        std::fill(row + xsize - thickness, row + xsize, value);
      }
    }
  }
}

template <class ImageIn, class ImageOut>
void Subtract(const ImageIn& image1, const ImageIn& image2, ImageOut* out) {
  using T = typename ImageIn::T;
  const size_t xsize = image1.xsize();
  const size_t ysize = image1.ysize();
  do { if (!(xsize == image2.xsize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 171,"xsize == image2.xsize()"); } } while (0); ::jxl::Abort(); } } while (0);
  do { if (!(ysize == image2.ysize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 172,"ysize == image2.ysize()"); } } while (0); ::jxl::Abort(); } } while (0);

  for (size_t y = 0; y < ysize; ++y) {
    const T* const __restrict__ row1 = image1.Row(y);
    const T* const __restrict__ row2 = image2.Row(y);
    T* const __restrict__ row_out = out->Row(y);
    for (size_t x = 0; x < xsize; ++x) {
      row_out[x] = row1[x] - row2[x];
    }
  }
}


template <typename Tin, typename Tout>
void SubtractFrom(const Plane<Tin>& what, Plane<Tout>* to) {
  const size_t xsize = what.xsize();
  const size_t ysize = what.ysize();
  for (size_t y = 0; y < ysize; ++y) {
    const Tin* __restrict__ row_what = what.ConstRow(y);
    Tout* __restrict__ row_to = to->Row(y);
    for (size_t x = 0; x < xsize; ++x) {
      row_to[x] -= row_what[x];
    }
  }
}


template <typename Tin, typename Tout>
void AddTo(const Plane<Tin>& what, Plane<Tout>* to) {
  const size_t xsize = what.xsize();
  const size_t ysize = what.ysize();
  for (size_t y = 0; y < ysize; ++y) {
    const Tin* __restrict__ row_what = what.ConstRow(y);
    Tout* __restrict__ row_to = to->Row(y);
    for (size_t x = 0; x < xsize; ++x) {
      row_to[x] += row_what[x];
    }
  }
}

template <typename Tin, typename Tout>
void AddTo(Rect rectFrom, const Plane<Tin>& what, Rect rectTo,
           Plane<Tout>* to) {
  do { if (!(SameSize(rectFrom, rectTo))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 215,"SameSize(rectFrom, rectTo)"); } } while (0); ::jxl::Abort(); } } while (0);
  const size_t xsize = rectTo.xsize();
  const size_t ysize = rectTo.ysize();
  for (size_t y = 0; y < ysize; ++y) {
    const Tin* __restrict__ row_what = rectFrom.ConstRow(what, y);
    Tout* __restrict__ row_to = rectTo.Row(to, y);
    for (size_t x = 0; x < xsize; ++x) {
      row_to[x] += row_what[x];
    }
  }
}


template <typename T>
Plane<T> LinComb(const T lambda1, const Plane<T>& image1, const T lambda2,
                 const Plane<T>& image2) {
  const size_t xsize = image1.xsize();
  const size_t ysize = image1.ysize();
  do { if (!(xsize == image2.xsize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 233,"xsize == image2.xsize()"); } } while (0); ::jxl::Abort(); } } while (0);
  do { if (!(ysize == image2.ysize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 234,"ysize == image2.ysize()"); } } while (0); ::jxl::Abort(); } } while (0);
  Plane<T> out(xsize, ysize);
  for (size_t y = 0; y < ysize; ++y) {
    const T* const __restrict__ row1 = image1.Row(y);
    const T* const __restrict__ row2 = image2.Row(y);
    T* const __restrict__ row_out = out.Row(y);
    for (size_t x = 0; x < xsize; ++x) {
      row_out[x] = lambda1 * row1[x] + lambda2 * row2[x];
    }
  }
  return out;
}


template <typename T>
Plane<T> ScaleImage(const T lambda, const Plane<T>& image) {
  Plane<T> out(image.xsize(), image.ysize());
  for (size_t y = 0; y < image.ysize(); ++y) {
    const T* const __restrict__ row = image.Row(y);
    T* const __restrict__ row_out = out.Row(y);
    for (size_t x = 0; x < image.xsize(); ++x) {
      row_out[x] = lambda * row[x];
    }
  }
  return out;
}


template <typename T>
void ScaleImage(const T lambda, Plane<T>* image) {
  for (size_t y = 0; y < image->ysize(); ++y) {
    T* const __restrict__ row = image->Row(y);
    for (size_t x = 0; x < image->xsize(); ++x) {
      row[x] = lambda * row[x];
    }
  }
}

template <typename T>
Plane<T> Product(const Plane<T>& a, const Plane<T>& b) {
  Plane<T> c(a.xsize(), a.ysize());
  for (size_t y = 0; y < a.ysize(); ++y) {
    const T* const __restrict__ row_a = a.Row(y);
    const T* const __restrict__ row_b = b.Row(y);
    T* const __restrict__ row_c = c.Row(y);
    for (size_t x = 0; x < a.xsize(); ++x) {
      row_c[x] = row_a[x] * row_b[x];
    }
  }
  return c;
}

float DotProduct(const ImageF& a, const ImageF& b);

template <typename T>
void FillImage(const T value, Plane<T>* image) {
  for (size_t y = 0; y < image->ysize(); ++y) {
    T* const __restrict__ row = image->Row(y);
    for (size_t x = 0; x < image->xsize(); ++x) {
      row[x] = value;
    }
  }
}

template <typename T>
void ZeroFillImage(Plane<T>* image) {
  for (size_t y = 0; y < image->ysize(); ++y) {
    T* const __restrict__ row = image->Row(y);
    memset(row, 0, image->xsize() * sizeof(T));
  }
}





static inline int64_t Mirror(int64_t x, const int64_t xsize) {
  do { } while (0);


  while (x < 0 || x >= xsize) {
    if (x < 0) {
      x = -x - 1;
    } else {
      x = 2 * xsize - 1 - x;
    }
  }
  return x;
}




struct WrapMirror {
  inline __attribute__((always_inline)) int64_t operator()(const int64_t coord, const int64_t size) const {
    return Mirror(coord, size);
  }
};



struct WrapUnchanged {
  inline __attribute__((always_inline)) int64_t operator()(const int64_t coord, int64_t ) const {
    return coord;
  }
};



class WrapRowMirror {
 public:
  template <class ImageOrView>
  WrapRowMirror(const ImageOrView& image, size_t ysize)
      : first_row_(image.ConstRow(0)), last_row_(image.ConstRow(ysize - 1)) {}

  const float* operator()(const float* const __restrict__ row,
                          const int64_t stride) const {
    if (row < first_row_) {
      const int64_t num_before = first_row_ - row;

      return first_row_ + num_before - stride;
    }
    if (row > last_row_) {
      const int64_t num_after = row - last_row_;

      return last_row_ - num_after + stride;
    }
    return row;
  }

 private:
  const float* const __restrict__ first_row_;
  const float* const __restrict__ last_row_;
};

struct WrapRowUnchanged {
  inline __attribute__((always_inline)) const float* operator()(const float* const __restrict__ row,
                                     int64_t ) const {
    return row;
  }
};



template <typename T>
void SetBorder(const size_t thickness, const T value, Plane<T>* image) {
  const size_t xsize = image->xsize();
  const size_t ysize = image->ysize();

  for (size_t y = 0; y < std::min(thickness, ysize); ++y) {
    T* const __restrict__ row = image->Row(y);
    std::fill(row, row + xsize, value);
  }


  for (size_t y = ysize - thickness; y < ysize; ++y) {
    T* const __restrict__ row = image->Row(y);
    std::fill(row, row + xsize, value);
  }



  if (ysize >= 2 * thickness) {
    for (size_t y = thickness; y < ysize - thickness; ++y) {
      T* const __restrict__ row = image->Row(y);
      std::fill(row, row + thickness, value);
      std::fill(row + xsize - thickness, row + xsize, value);
    }
  }
}


template <typename T>
void ImageMinMax(const Plane<T>& image, T* const __restrict__ min,
                 T* const __restrict__ max) {
  *min = std::numeric_limits<T>::max();
  *max = std::numeric_limits<T>::lowest();
  for (size_t y = 0; y < image.ysize(); ++y) {
    const T* const __restrict__ row = image.Row(y);
    for (size_t x = 0; x < image.xsize(); ++x) {
      *min = std::min(*min, row[x]);
      *max = std::max(*max, row[x]);
    }
  }
}




template <typename FromType, typename ToType>
void ImageConvert(const Plane<FromType>& from, const float to_range,
                  Plane<ToType>* const __restrict__ to) {
  do { if (!(SameSize(from, *to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 426,"SameSize(from, *to)"); } } while (0); ::jxl::Abort(); } } while (0);
  FromType min_from, max_from;
  ImageMinMax(from, &min_from, &max_from);
  const float scale = to_range / (max_from - min_from);
  for (size_t y = 0; y < from.ysize(); ++y) {
    const FromType* const __restrict__ row_from = from.Row(y);
    ToType* const __restrict__ row_to = to->Row(y);
    for (size_t x = 0; x < from.xsize(); ++x) {
      row_to[x] = static_cast<ToType>((row_from[x] - min_from) * scale);
    }
  }
}


template <typename FromType, typename ToType>
Plane<ToType> StaticCastImage(const Plane<FromType>& from) {
  Plane<ToType> to(from.xsize(), from.ysize());
  for (size_t y = 0; y < from.ysize(); ++y) {
    const FromType* const __restrict__ row_from = from.Row(y);
    ToType* const __restrict__ row_to = to.Row(y);
    for (size_t x = 0; x < from.xsize(); ++x) {
      row_to[x] = static_cast<ToType>(row_from[x]);
    }
  }
  return to;
}

template <typename T>
Plane<T> ImageFromPacked(const std::vector<T>& packed, const size_t xsize,
                         const size_t ysize) {
  Plane<T> out(xsize, ysize);
  for (size_t y = 0; y < ysize; ++y) {
    T* const __restrict__ row = out.Row(y);
    const T* const __restrict__ packed_row = &packed[y * xsize];
    memcpy(row, packed_row, xsize * sizeof(T));
  }
  return out;
}


template <typename T>
void Image3MinMax(const Image3<T>& image, const Rect& rect,
                  std::array<T, 3>* out_min, std::array<T, 3>* out_max) {
  for (size_t c = 0; c < 3; ++c) {
    T min = std::numeric_limits<T>::max();
    T max = std::numeric_limits<T>::min();
    for (size_t y = 0; y < rect.ysize(); ++y) {
      const T* __restrict__ row = rect.ConstPlaneRow(image, c, y);
      for (size_t x = 0; x < rect.xsize(); ++x) {
        min = std::min(min, row[x]);
        max = std::max(max, row[x]);
      }
    }
    (*out_min)[c] = min;
    (*out_max)[c] = max;
  }
}


template <typename T>
void Image3MinMax(const Image3<T>& image, std::array<T, 3>* out_min,
                  std::array<T, 3>* out_max) {
  Image3MinMax(image, Rect(image), out_min, out_max);
}

template <typename T>
void Image3Max(const Image3<T>& image, std::array<T, 3>* out_max) {
  for (size_t c = 0; c < 3; ++c) {
    T max = std::numeric_limits<T>::min();
    for (size_t y = 0; y < image.ysize(); ++y) {
      const T* __restrict__ row = image.ConstPlaneRow(c, y);
      for (size_t x = 0; x < image.xsize(); ++x) {
        max = std::max(max, row[x]);
      }
    }
    (*out_max)[c] = max;
  }
}


template <typename T>
T ImageSum(const Plane<T>& image, const Rect& rect) {
  T result = 0;
  for (size_t y = 0; y < rect.ysize(); ++y) {
    const T* __restrict__ row = rect.ConstRow(image, y);
    for (size_t x = 0; x < rect.xsize(); ++x) {
      result += row[x];
    }
  }
  return result;
}

template <typename T>
T ImageSum(const Plane<T>& image) {
  return ImageSum(image, Rect(image));
}

template <typename T>
std::array<T, 3> Image3Sum(const Image3<T>& image, const Rect& rect) {
  std::array<T, 3> out_sum = 0;
  for (size_t c = 0; c < 3; ++c) {
    (out_sum)[c] = ImageSum(image.Plane(c), rect);
  }
  return out_sum;
}

template <typename T>
std::array<T, 3> Image3Sum(const Image3<T>& image) {
  return Image3Sum(image, Rect(image));
}

template <typename T>
std::vector<T> PackedFromImage(const Plane<T>& image, const Rect& rect) {
  const size_t xsize = rect.xsize();
  const size_t ysize = rect.ysize();
  std::vector<T> packed(xsize * ysize);
  for (size_t y = 0; y < rect.ysize(); ++y) {
    memcpy(&packed[y * xsize], rect.ConstRow(image, y), xsize * sizeof(T));
  }
  return packed;
}

template <typename T>
std::vector<T> PackedFromImage(const Plane<T>& image) {
  return PackedFromImage(image, Rect(image));
}


template <typename T>
T ImageMedian(const Plane<T>& image, const Rect& rect) {
  std::vector<T> pixels = PackedFromImage(image, rect);
  return Median(&pixels);
}

template <typename T>
T ImageMedian(const Plane<T>& image) {
  return ImageMedian(image, Rect(image));
}

template <typename T>
std::array<T, 3> Image3Median(const Image3<T>& image, const Rect& rect) {
  std::array<T, 3> out_median;
  for (size_t c = 0; c < 3; ++c) {
    (out_median)[c] = ImageMedian(image.Plane(c), rect);
  }
  return out_median;
}

template <typename T>
std::array<T, 3> Image3Median(const Image3<T>& image) {
  return Image3Median(image, Rect(image));
}

template <typename FromType, typename ToType>
void Image3Convert(const Image3<FromType>& from, const float to_range,
                   Image3<ToType>* const __restrict__ to) {
  do { if (!(SameSize(from, *to))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 582,"SameSize(from, *to)"); } } while (0); ::jxl::Abort(); } } while (0);
  std::array<FromType, 3> min_from, max_from;
  Image3MinMax(from, &min_from, &max_from);
  float scales[3];
  for (size_t c = 0; c < 3; ++c) {
    scales[c] = to_range / (max_from[c] - min_from[c]);
  }
  float scale = std::min(scales[0], std::min(scales[1], scales[2]));
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < from.ysize(); ++y) {
      const FromType* __restrict__ row_from = from.ConstPlaneRow(c, y);
      ToType* __restrict__ row_to = to->PlaneRow(c, y);
      for (size_t x = 0; x < from.xsize(); ++x) {
        const float to = (row_from[x] - min_from[c]) * scale;
        row_to[x] = static_cast<ToType>(to);
      }
    }
  }
}


template <typename ToType, typename FromType>
Image3<ToType> StaticCastImage3(const Image3<FromType>& from) {
  Image3<ToType> to(from.xsize(), from.ysize());
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < from.ysize(); ++y) {
      const FromType* __restrict__ row_from = from.ConstPlaneRow(c, y);
      ToType* __restrict__ row_to = to.PlaneRow(c, y);
      for (size_t x = 0; x < from.xsize(); ++x) {
        row_to[x] = static_cast<ToType>(row_from[x]);
      }
    }
  }
  return to;
}

template <typename Tin, typename Tout>
void Subtract(const Image3<Tin>& image1, const Image3<Tin>& image2,
              Image3<Tout>* out) {
  const size_t xsize = image1.xsize();
  const size_t ysize = image1.ysize();
  do { if (!(xsize == image2.xsize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 623,"xsize == image2.xsize()"); } } while (0); ::jxl::Abort(); } } while (0);
  do { if (!(ysize == image2.ysize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 624,"ysize == image2.ysize()"); } } while (0); ::jxl::Abort(); } } while (0);

  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < ysize; ++y) {
      const Tin* const __restrict__ row1 = image1.ConstPlaneRow(c, y);
      const Tin* const __restrict__ row2 = image2.ConstPlaneRow(c, y);
      Tout* const __restrict__ row_out = out->PlaneRow(c, y);
      for (size_t x = 0; x < xsize; ++x) {
        row_out[x] = row1[x] - row2[x];
      }
    }
  }
}

template <typename Tin, typename Tout>
void SubtractFrom(const Image3<Tin>& what, Image3<Tout>* to) {
  const size_t xsize = what.xsize();
  const size_t ysize = what.ysize();
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < ysize; ++y) {
      const Tin* __restrict__ row_what = what.ConstPlaneRow(c, y);
      Tout* __restrict__ row_to = to->PlaneRow(c, y);
      for (size_t x = 0; x < xsize; ++x) {
        row_to[x] -= row_what[x];
      }
    }
  }
}

template <typename Tin, typename Tout>
void AddTo(const Image3<Tin>& what, Image3<Tout>* to) {
  const size_t xsize = what.xsize();
  const size_t ysize = what.ysize();
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < ysize; ++y) {
      const Tin* __restrict__ row_what = what.ConstPlaneRow(c, y);
      Tout* __restrict__ row_to = to->PlaneRow(c, y);
      for (size_t x = 0; x < xsize; ++x) {
        row_to[x] += row_what[x];
      }
    }
  }
}


template <typename Tin, typename Tout>
void AddTo(const Rect& rect, const Image3<Tin>& what, Image3<Tout>* to) {
  const size_t xsize = what.xsize();
  const size_t ysize = what.ysize();
  do { if (!(xsize == rect.xsize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 673,"xsize == rect.xsize()"); } } while (0); ::jxl::Abort(); } } while (0);
  do { if (!(ysize == rect.ysize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/image_ops.h", 674,"ysize == rect.ysize()"); } } while (0); ::jxl::Abort(); } } while (0);
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < ysize; ++y) {
      const Tin* __restrict__ row_what = what.ConstPlaneRow(c, y);
      Tout* __restrict__ row_to = rect.PlaneRow(to, c, y);
      for (size_t x = 0; x < xsize; ++x) {
        row_to[x] += row_what[x];
      }
    }
  }
}

template <typename T>
Image3<T> ScaleImage(const T lambda, const Image3<T>& image) {
  Image3<T> out(image.xsize(), image.ysize());
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < image.ysize(); ++y) {
      const T* __restrict__ row = image.ConstPlaneRow(c, y);
      T* __restrict__ row_out = out.PlaneRow(c, y);
      for (size_t x = 0; x < image.xsize(); ++x) {
        row_out[x] = lambda * row[x];
      }
    }
  }
  return out;
}


template <typename T>
void ScaleImage(const T lambda, Image3<T>* image) {
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < image->ysize(); ++y) {
      T* const __restrict__ row = image->PlaneRow(c, y);
      for (size_t x = 0; x < image->xsize(); ++x) {
        row[x] = lambda * row[x];
      }
    }
  }
}


template <typename T>
void FillImage(const T value, Image3<T>* image) {
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < image->ysize(); ++y) {
      T* __restrict__ row = image->PlaneRow(c, y);
      for (size_t x = 0; x < image->xsize(); ++x) {
        row[x] = value;
      }
    }
  }
}

template <typename T>
void FillPlane(const T value, Plane<T>* image) {
  for (size_t y = 0; y < image->ysize(); ++y) {
    T* __restrict__ row = image->Row(y);
    for (size_t x = 0; x < image->xsize(); ++x) {
      row[x] = value;
    }
  }
}

template <typename T>
void FillImage(const T value, Image3<T>* image, Rect rect) {
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < rect.ysize(); ++y) {
      T* __restrict__ row = rect.PlaneRow(image, c, y);
      for (size_t x = 0; x < rect.xsize(); ++x) {
        row[x] = value;
      }
    }
  }
}

template <typename T>
void FillPlane(const T value, Plane<T>* image, Rect rect) {
  for (size_t y = 0; y < rect.ysize(); ++y) {
    T* __restrict__ row = rect.Row(image, y);
    for (size_t x = 0; x < rect.xsize(); ++x) {
      row[x] = value;
    }
  }
}

template <typename T>
void ZeroFillImage(Image3<T>* image) {
  for (size_t c = 0; c < 3; ++c) {
    for (size_t y = 0; y < image->ysize(); ++y) {
      T* __restrict__ row = image->PlaneRow(c, y);
      memset(row, 0, image->xsize() * sizeof(T));
    }
  }
}

template <typename T>
void ZeroFillPlane(Plane<T>* image, Rect rect) {
  for (size_t y = 0; y < rect.ysize(); ++y) {
    T* __restrict__ row = rect.Row(image, y);
    memset(row, 0, rect.xsize() * sizeof(T));
  }
}



ImageF PadImage(const ImageF& in, size_t xsize, size_t ysize);



Image3F PadImageMirror(const Image3F& in, size_t xborder, size_t yborder);






void PadRectMirrorInPlace(Image3F* img, const Rect& rect, size_t xsize,
                          size_t xborder, size_t xpadding);




Image3F PadImageToMultiple(const Image3F& in, size_t N);



void PadImageToBlockMultipleInPlace(Image3F* __restrict__ in);

}
# 25 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h" 2
# 35 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h"
namespace jxl {

class AcStrategy {
 public:

  static constexpr size_t kMaxCoeffBlocks = 32;
  static constexpr size_t kMaxBlockDim = kBlockDim * kMaxCoeffBlocks;


  static constexpr size_t kMaxCoeffArea = kMaxBlockDim * kMaxBlockDim;
  static_assert((kMaxCoeffArea * sizeof(float)) % hwy::kMaxVectorSize == 0,
                "Coefficient area is not a multiple of vector size");


  enum Type : uint32_t {

    DCT = 0,

    IDENTITY = 1,

    DCT2X2 = 2,

    DCT4X4 = 3,

    DCT16X16 = 4,

    DCT32X32 = 5,

    DCT16X8 = 6,

    DCT8X16 = 7,

    DCT32X8 = 8,

    DCT8X32 = 9,

    DCT32X16 = 10,

    DCT16X32 = 11,

    DCT4X8 = 12,
    DCT8X4 = 13,

    AFV0 = 14,
    AFV1 = 15,
    AFV2 = 16,
    AFV3 = 17,

    DCT64X64 = 18,
    DCT64X32 = 19,
    DCT32X64 = 20,
    DCT128X128 = 21,
    DCT128X64 = 22,
    DCT64X128 = 23,
    DCT256X256 = 24,
    DCT256X128 = 25,
    DCT128X256 = 26,

    kNumValidStrategies
  };

  static constexpr uint32_t TypeBit(const Type type) {
    return 1u << static_cast<uint32_t>(type);
  }



  inline __attribute__((always_inline)) bool IsFirstBlock() const { return is_first_; }

  inline __attribute__((always_inline)) bool IsMultiblock() const {
    constexpr uint32_t bits =
        TypeBit(Type::DCT16X16) | TypeBit(Type::DCT32X32) |
        TypeBit(Type::DCT16X8) | TypeBit(Type::DCT8X16) |
        TypeBit(Type::DCT32X8) | TypeBit(Type::DCT8X32) |
        TypeBit(Type::DCT16X32) | TypeBit(Type::DCT32X16) |
        TypeBit(Type::DCT32X64) | TypeBit(Type::DCT64X32) |
        TypeBit(Type::DCT64X64) | TypeBit(DCT64X128) | TypeBit(DCT128X64) |
        TypeBit(DCT128X128) | TypeBit(DCT128X256) | TypeBit(DCT256X128) |
        TypeBit(DCT256X256);
    do { } while (0);
    return ((1u << static_cast<uint32_t>(Strategy())) & bits) != 0;
  }


  inline __attribute__((always_inline)) uint8_t RawStrategy() const {
    return static_cast<uint8_t>(strategy_);
  }

  inline __attribute__((always_inline)) Type Strategy() const { return strategy_; }


  static inline __attribute__((always_inline)) constexpr bool IsRawStrategyValid(uint8_t raw_strategy) {
    return raw_strategy < kNumValidStrategies;
  }
  static inline __attribute__((always_inline)) AcStrategy FromRawStrategy(uint8_t raw_strategy) {
    return FromRawStrategy(static_cast<Type>(raw_strategy));
  }
  static inline __attribute__((always_inline)) AcStrategy FromRawStrategy(Type raw_strategy) {
    do { } while (0);
    return AcStrategy(raw_strategy, true);
  }






  inline __attribute__((always_inline)) const coeff_order_t* NaturalCoeffOrder() const {
    return CoeffOrder()->order +
           CoeffOrderAndLut::kOffset[RawStrategy()] * kDCTBlockSize;
  }

  inline __attribute__((always_inline)) const coeff_order_t* NaturalCoeffOrderLut() const {
    return CoeffOrder()->lut +
           CoeffOrderAndLut::kOffset[RawStrategy()] * kDCTBlockSize;
  }



  inline __attribute__((always_inline)) size_t covered_blocks_x() const {
    static constexpr uint8_t kLut[] = {1, 1, 1, 1, 2, 4, 1, 2, 1,
                                       4, 2, 4, 1, 1, 1, 1, 1, 1,
                                       8, 4, 8, 16, 8, 16, 32, 16, 32};
    static_assert(sizeof(kLut) / sizeof(*kLut) == kNumValidStrategies,
                  "Update LUT");
    return kLut[size_t(strategy_)];
  }

  inline __attribute__((always_inline)) size_t covered_blocks_y() const {
    static constexpr uint8_t kLut[] = {1, 1, 1, 1, 2, 4, 2, 1, 4,
                                       1, 4, 2, 1, 1, 1, 1, 1, 1,
                                       8, 8, 4, 16, 16, 8, 32, 32, 16};
    static_assert(sizeof(kLut) / sizeof(*kLut) == kNumValidStrategies,
                  "Update LUT");
    return kLut[size_t(strategy_)];
  }

  inline __attribute__((always_inline)) size_t log2_covered_blocks() const {
    static constexpr uint8_t kLut[] = {0, 0, 0, 0, 2, 4, 1, 1, 2,
                                       2, 3, 3, 0, 0, 0, 0, 0, 0,
                                       6, 5, 5, 8, 7, 7, 10, 9, 9};
    static_assert(sizeof(kLut) / sizeof(*kLut) == kNumValidStrategies,
                  "Update LUT");
    return kLut[size_t(strategy_)];
  }

  struct CoeffOrderAndLut {


    static constexpr size_t kOffset[kNumValidStrategies + 1] = {
        0, 1, 2, 3, 4, 8, 24, 26, 28, 32, 36, 44, 52, 53,
        54, 55, 56, 57, 58, 122, 154, 186, 442, 570, 698, 1722, 2234, 2746,
    };
    static constexpr size_t kTotalTableSize =
        kOffset[kNumValidStrategies] * kDCTBlockSize;
    coeff_order_t order[kTotalTableSize];
    coeff_order_t lut[kTotalTableSize];
  };

 private:
  friend class AcStrategyRow;
  inline __attribute__((always_inline)) AcStrategy(Type strategy, bool is_first)
      : strategy_(strategy), is_first_(is_first) {
    do { } while (0);
  }

  Type strategy_;
  bool is_first_;

  static const CoeffOrderAndLut* CoeffOrder();
};


class AcStrategyRow {
 public:
  explicit AcStrategyRow(const uint8_t* row) : row_(row) {}
  AcStrategy operator[](size_t x) const {
    return AcStrategy(static_cast<AcStrategy::Type>(row_[x] >> 1), row_[x] & 1);
  }

 private:
  const uint8_t* __restrict__ row_;
};

class AcStrategyImage {
 public:
  AcStrategyImage() = default;
  AcStrategyImage(size_t xsize, size_t ysize);
  AcStrategyImage(AcStrategyImage&&) = default;
  AcStrategyImage& operator=(AcStrategyImage&&) = default;

  void FillDCT8() {
    FillImage<uint8_t>((static_cast<uint8_t>(AcStrategy::Type::DCT) << 1) | 1,
                       &layers_);
  }

  void FillInvalid() { FillImage(INVALID, &layers_); }

  void Set(size_t x, size_t y, AcStrategy::Type type) {

    AcStrategy acs = AcStrategy::FromRawStrategy(type);

    do { if (!(y + acs.covered_blocks_y() <= layers_.ysize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h", 237,"y + acs.covered_blocks_y() <= layers_.ysize()"); } } while (0); ::jxl::Abort(); } } while (0);
    do { if (!(x + acs.covered_blocks_x() <= layers_.xsize())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h", 238,"x + acs.covered_blocks_x() <= layers_.xsize()"); } } while (0); ::jxl::Abort(); } } while (0);
    do { if (!(SetNoBoundsCheck(x, y, type, false))) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h", 239,"SetNoBoundsCheck(x, y, type, false)"); } } while (0); ::jxl::Abort(); } } while (0);
  }

  Status SetNoBoundsCheck(size_t x, size_t y, AcStrategy::Type type,
                          bool check = true) {
    AcStrategy acs = AcStrategy::FromRawStrategy(type);
    for (size_t iy = 0; iy < acs.covered_blocks_y(); iy++) {
      for (size_t ix = 0; ix < acs.covered_blocks_x(); ix++) {
        size_t pos = (y + iy) * stride_ + x + ix;
        if (check && row_[pos] != INVALID) {
          return ((void)::jxl::StatusMessage(::jxl::Status(::jxl::StatusCode::kGenericError), "%s:%d: " "JXL_FAILURE: " "Invalid AC strategy: block overlap" "\n", "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/ac_strategy.h", 249), ::jxl::Status(::jxl::StatusCode::kGenericError));
        }
        row_[pos] =
            (static_cast<uint8_t>(type) << 1) | ((iy | ix) == 0 ? 1 : 0);
      }
    }
    return true;
  }

  bool IsValid(size_t x, size_t y) { return row_[y * stride_ + x] != INVALID; }

  AcStrategyRow ConstRow(size_t y, size_t x_prefix = 0) const {
    return AcStrategyRow(layers_.ConstRow(y) + x_prefix);
  }

  AcStrategyRow ConstRow(const Rect& rect, size_t y) const {
    return ConstRow(rect.y0() + y, rect.x0());
  }

  size_t PixelsPerRow() const { return layers_.PixelsPerRow(); }

  size_t xsize() const { return layers_.xsize(); }
  size_t ysize() const { return layers_.ysize(); }


  size_t CountBlocks(AcStrategy::Type type) const;

 private:
  ImageB layers_;
  uint8_t* __restrict__ row_;
  size_t stride_;



  static constexpr uint8_t INVALID = 0xFF;
};

}
# 30 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/aux_out_fwd.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/aux_out_fwd.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/aux_out_fwd.h" 2

# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h" 2






# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h" 1
# 20 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h" 2
# 32 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h"
namespace jxl {





class PaddedBytes {
 public:

  PaddedBytes() : size_(0), capacity_(0) {}

  explicit PaddedBytes(size_t size) : size_(size), capacity_(0) {
    if (size != 0) IncreaseCapacityTo(size);
  }

  PaddedBytes(size_t size, uint8_t value) : size_(size), capacity_(0) {
    if (size != 0) {
      IncreaseCapacityTo(size);
    }
    if (size_ != 0) {
      memset(data(), value, size);
    }
  }

  PaddedBytes(const PaddedBytes& other) : size_(other.size_), capacity_(0) {
    if (size_ != 0) IncreaseCapacityTo(size_);
    if (data() != nullptr) memcpy(data(), other.data(), size_);
  }
  PaddedBytes& operator=(const PaddedBytes& other) {

    resize(other.size());
    if (data() != nullptr) memmove(data(), other.data(), size_);
    return *this;
  }


  PaddedBytes(PaddedBytes&& other) noexcept
      : size_(other.size_),
        capacity_(other.capacity_),
        data_(std::move(other.data_)) {
    other.size_ = other.capacity_ = 0;
  }
  PaddedBytes& operator=(PaddedBytes&& other) noexcept {
    size_ = other.size_;
    capacity_ = other.capacity_;
    data_ = std::move(other.data_);

    if (&other != this) {
      other.size_ = other.capacity_ = 0;
    }
    return *this;
  }

  void swap(PaddedBytes& other) {
    std::swap(size_, other.size_);
    std::swap(capacity_, other.capacity_);
    std::swap(data_, other.data_);
  }

  void reserve(size_t capacity) {
    if (capacity > capacity_) IncreaseCapacityTo(capacity);
  }





  void resize(size_t size) {
    if (size > capacity_) IncreaseCapacityTo(size);
    size_ = (data() == nullptr) ? 0 : size;
  }


  void resize(size_t size, uint8_t value) {
    size_t old_size = size_;
    resize(size);
    if (size_ > old_size) {
      memset(data() + old_size, value, size_ - old_size);
    }
  }


  void push_back(uint8_t x) {
    if (size_ == capacity_) {
      IncreaseCapacityTo(std::max<size_t>(3 * capacity_ / 2, 64));
      if (data() == nullptr) return;
    }

    data_[size_++] = x;
  }

  size_t size() const { return size_; }
  size_t capacity() const { return capacity_; }

  uint8_t* data() { return data_.get(); }
  const uint8_t* data() const { return data_.get(); }



  void clear() { resize(0); }
  bool empty() const { return size() == 0; }

  void assign(std::initializer_list<uint8_t> il) {
    resize(il.size());
    memcpy(data(), il.begin(), il.size());
  }


  void assign(const uint8_t* new_begin, const uint8_t* new_end);

  uint8_t* begin() { return data(); }
  const uint8_t* begin() const { return data(); }
  uint8_t* end() { return begin() + size(); }
  const uint8_t* end() const { return begin() + size(); }

  uint8_t& operator[](const size_t i) {
    BoundsCheck(i);
    return data()[i];
  }
  const uint8_t& operator[](const size_t i) const {
    BoundsCheck(i);
    return data()[i];
  }

  uint8_t& back() {
    do { if (!(size() != 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h", 157,"size() != 0"); } } while (0); ::jxl::Abort(); } } while (0);
    return data()[size() - 1];
  }
  const uint8_t& back() const {
    do { if (!(size() != 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h", 161,"size() != 0"); } } while (0); ::jxl::Abort(); } } while (0);
    return data()[size() - 1];
  }

  template <typename T>
  void append(const T& other) {
    size_t old_size = size();
    resize(size() + other.size());
    memcpy(data() + old_size, other.data(), other.size());
  }

  void append(const uint8_t* begin, const uint8_t* end) {
    size_t old_size = size();
    resize(size() + (end - begin));
    memcpy(data() + old_size, begin, end - begin);
  }

 private:
  void BoundsCheck(size_t i) const {

    do { if (!(i <= size())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h", 181,"i <= size()"); } } while (0); ::jxl::Abort(); } } while (0);
  }



  void IncreaseCapacityTo(size_t capacity);

  size_t size_;
  size_t capacity_;
  CacheAlignedUniquePtr data_;
};

template <typename T>
static inline void Append(const T& s, PaddedBytes* out,
                          size_t* __restrict__ byte_pos) {
  memcpy(out->data() + *byte_pos, s.data(), s.size());
  *byte_pos += s.size();
  do { if (!(*byte_pos <= out->size())) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_CHECK: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/padded_bytes.h", 198,"*byte_pos <= out->size()"); } } while (0); ::jxl::Abort(); } } while (0);
}

}
# 28 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/span.h" 1
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/span.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/span.h" 2



namespace jxl {

template <typename T>
class Span {
 public:
  constexpr Span() noexcept : Span(nullptr, 0) {}

  constexpr Span(T* array, size_t length) noexcept
      : ptr_(array), len_(length) {}

  template <size_t N>
  explicit constexpr Span(T (&a)[N]) noexcept : Span(a, N) {}

  template <typename ArrayLike>
  explicit constexpr Span(const ArrayLike& other) noexcept
      : Span(reinterpret_cast<T*>(other.data()), other.size()) {
    static_assert(sizeof(*other.data()) == sizeof(T),
                  "Incompatible type of source.");
  }

  constexpr T* data() const noexcept { return ptr_; }

  constexpr size_t size() const noexcept { return len_; }

  constexpr T& operator[](size_t i) const noexcept {

    return *(data() + i);
  }

  void remove_prefix(size_t n) noexcept {
    do { if (!(size() >= n)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/span.h", 55,"size() >= n"); } } while (0); ::jxl::Abort(); } } while (0);
    ptr_ += n;
    len_ -= n;
  }

 private:
  T* ptr_;
  size_t len_;
};

}
# 29 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h" 2



namespace jxl {

struct BitWriter {





  static constexpr size_t kMaxBitsPerCall = 56;

  BitWriter() : bits_written_(0) {}


  BitWriter(const BitWriter&) = delete;
  BitWriter& operator=(const BitWriter&) = delete;
  BitWriter(BitWriter&&) = default;
  BitWriter& operator=(BitWriter&&) = default;

  explicit BitWriter(PaddedBytes&& donor)
      : bits_written_(donor.size() * kBitsPerByte),
        storage_(std::move(donor)) {}

  size_t BitsWritten() const { return bits_written_; }

  Span<const uint8_t> GetSpan() const {

    do { if (!(bits_written_ % kBitsPerByte == 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h", 58,"bits_written_ % kBitsPerByte == 0"); } } while (0); ::jxl::Abort(); } } while (0);
    return Span<const uint8_t>(storage_.data(), bits_written_ / kBitsPerByte);
  }




  PaddedBytes&& TakeBytes() && {

    do { if (!(bits_written_ % kBitsPerByte == 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h", 67,"bits_written_ % kBitsPerByte == 0"); } } while (0); ::jxl::Abort(); } } while (0);
    storage_.resize(bits_written_ / kBitsPerByte);
    return std::move(storage_);
  }


  void AppendByteAligned(const Span<const uint8_t>& span);

  void AppendByteAligned(const BitWriter& other);
  void AppendByteAligned(const std::vector<std::unique_ptr<BitWriter>>& others);
  void AppendByteAligned(const std::vector<BitWriter>& others);

  class Allotment {
   public:



    Allotment(BitWriter* __restrict__ writer, size_t max_bits);
    ~Allotment();

    size_t MaxBits() const { return max_bits_; }


    void FinishedHistogram(BitWriter* __restrict__ writer);

    size_t HistogramBits() const {
      do { if (!(called_)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h", 93,"called_"); } } while (0); ::jxl::Abort(); } } while (0);
      return histogram_bits_;
    }



    void PrivateReclaim(BitWriter* __restrict__ writer,
                        size_t* __restrict__ used_bits,
                        size_t* __restrict__ unused_bits);

   private:
    size_t prev_bits_written_;
    const size_t max_bits_;
    size_t histogram_bits_ = 0;
    bool called_ = false;
    Allotment* parent_;
  };



  BitWriter& operator+=(const BitWriter& other);


  BitWriter& operator+=(const PaddedBytes& other);





  void Write(size_t n_bits, uint64_t bits);





  void ZeroPadToByte() {
    const size_t remainder_bits =
        RoundUpBitsToByteMultiple(bits_written_) - bits_written_;
    if (remainder_bits == 0) return;
    Write(remainder_bits, 0);
    do { if (!(bits_written_ % kBitsPerByte == 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h", 133,"bits_written_ % kBitsPerByte == 0"); } } while (0); ::jxl::Abort(); } } while (0);
  }


  void RewindStorage(const size_t pos0) {
    do { if (!(pos0 <= bits_written_)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/enc_bit_writer.h", 138,"pos0 <= bits_written_"); } } while (0); ::jxl::Abort(); } } while (0);
    bits_written_ = pos0;
    static const uint8_t kRewindMasks[8] = {0x0, 0x1, 0x3, 0x7,
                                            0xf, 0x1f, 0x3f, 0x7f};
    storage_[pos0 >> 3] &= kRewindMasks[pos0 & 7];
  }

 private:
  size_t bits_written_;
  PaddedBytes storage_;
  Allotment* current_allotment_ = nullptr;
};

}
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/aux_out_fwd.h" 2

namespace jxl {

struct AuxOut;






void ReclaimAndCharge(BitWriter* __restrict__ writer,
                      BitWriter::Allotment* __restrict__ allotment,
                      size_t layer, AuxOut* __restrict__ aux_out);

}
# 31 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/entropy_coder.h" 2



# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order.h" 2
# 27 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order.h"
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dct_util.h" 1
# 18 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dct_util.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 19 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dct_util.h" 2


# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h" 1
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h" 2


# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h" 1
# 46 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 47 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h" 2



extern "C" {







typedef int JxlParallelRetCode;
# 83 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h"
typedef JxlParallelRetCode (*JxlParallelRunInit)(void* jpegxl_opaque,
                                                 size_t num_threads);
# 101 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h"
typedef void (*JxlParallelRunFunction)(void* jpegxl_opaque, uint32_t value,
                                       size_t thread_id);
# 125 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h"
typedef JxlParallelRetCode (*JxlParallelRunner)(
    void* runner_opaque, void* jpegxl_opaque, JxlParallelRunInit init,
    JxlParallelRunFunction func, uint32_t start_range, uint32_t end_range);
# 157 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/include/jxl/parallel_runner.h"
}
# 25 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h" 2



namespace jxl {

class ThreadPool {
 public:



  struct SkipInit {};

  ThreadPool(JxlParallelRunner runner, void* runner_opaque)
      : runner_(runner ? runner : &ThreadPool::SequentialRunnerStatic),
        runner_opaque_(runner ? runner_opaque : static_cast<void*>(this)) {}

  ThreadPool(const ThreadPool&) = delete;
  ThreadPool& operator&(const ThreadPool&) = delete;
# 52 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h"
  template <class InitFunc, class DataFunc>
  Status Run(uint32_t begin, uint32_t end, const InitFunc& init_func,
             const DataFunc& data_func, const char* caller = "") {
    do { if (!(begin <= end)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h", 55,"begin <= end"); } } while (0); ::jxl::Abort(); } } while (0);
    if (begin == end) return true;
    RunCallState<InitFunc, DataFunc> call_state(init_func, data_func);


    return (*runner_)(runner_opaque_, static_cast<void*>(&call_state),
                      &call_state.CallInitFunc, &call_state.CallDataFunc, begin,
                      end) == 0;
  }


  template <class DataFunc>
  bool Run(uint32_t begin, uint32_t end, const SkipInit ,
           const DataFunc& data_func, const char* caller = "") {
    return Run(begin, end, ReturnTrueInit, data_func, caller);
  }

 private:
  static Status ReturnTrueInit(size_t num_threads) { return true; }



  template <class InitFunc, class DataFunc>
  class RunCallState final {
   public:
    RunCallState(const InitFunc& init_func, const DataFunc& data_func)
        : init_func_(init_func), data_func_(data_func) {}


    static int CallInitFunc(void* jpegxl_opaque, size_t num_threads) {
      const auto* self =
          static_cast<RunCallState<InitFunc, DataFunc>*>(jpegxl_opaque);


      return self->init_func_(num_threads) ? 0 : -1;
    }


    static void CallDataFunc(void* jpegxl_opaque, uint32_t value,
                             size_t thread_id) {
      const auto* self =
          static_cast<RunCallState<InitFunc, DataFunc>*>(jpegxl_opaque);
      return self->data_func_(value, thread_id);
    }

   private:
    const InitFunc& init_func_;
    const DataFunc& data_func_;
  };



  static JxlParallelRetCode SequentialRunnerStatic(
      void* runner_opaque, void* jpegxl_opaque, JxlParallelRunInit init,
      JxlParallelRunFunction func, uint32_t start_range, uint32_t end_range);


  const JxlParallelRunner runner_;
  void* const runner_opaque_;
};

void TraceRunBegin(const char* caller, double* t0);
void TraceRunEnd(const char* caller, double t0);


template <class InitFunc, class DataFunc>
bool RunOnPool(ThreadPool* pool, const uint32_t begin, const uint32_t end,
               const InitFunc& init_func, const DataFunc& data_func,
               const char* caller) {
  Status ret = true;
  double t0;
  TraceRunBegin(caller, &t0);
  if (pool == nullptr) {
    ThreadPool default_pool(nullptr, nullptr);
    ret = default_pool.Run(begin, end, init_func, data_func, caller);
  } else {
    ret = pool->Run(begin, end, init_func, data_func, caller);
  }
  TraceRunEnd(caller, t0);
  return ret;
}





class Divider {
 public:

  explicit Divider(const uint32_t d) : shift_(FloorLog2Nonzero(d)) {


    do { if (!((d & (d - 1)) != 0)) { do { if (true) { ::jxl::Debug(("%s:%d: " "JXL_ASSERT: %s" "\n"), "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/data_parallel.h", 147,"(d & (d - 1)) != 0"); } } while (0); ::jxl::Abort(); } } while (0);


    const uint64_t next_pow2 = 1ULL << (shift_ + 1);

    mul_ = ((next_pow2 - d) << 32) / d + 1;
  }


  inline uint32_t operator()(const uint32_t n) const {


    const uint32_t hi = (uint64_t(mul_) * n) >> 32;
    return (hi + ((n - hi) >> 1)) >> shift_;
  }

 private:
  uint32_t mul_;
  const int shift_;
};

}
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dct_util.h" 2




namespace jxl {
using ac_qcoeff_t = float;
using ACImage = Plane<ac_qcoeff_t>;
using ACImage3 = Image3<ac_qcoeff_t>;
}
# 28 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/coeff_order.h" 2
# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dec_bit_reader.h" 1
# 21 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dec_bit_reader.h"
# 1 "/usr/lib/gcc/x86_64-redhat-linux/11/include/stddef.h" 1 3 4
# 22 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/dec_bit_reader.h" 2







# 1 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/byte_order.h" 1
# 38 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/byte_order.h"
static constexpr bool IsLittleEndian() { return true; }
# 56 "/builddir/build/BUILD/jpeg-xl-v0.2-31c71b0f61123a40789b0b8f54feb70e5995420e/lib/jxl/base/byte_order.h"
static inline __attribute__((always_inline)) uint32_t LoadBE16(const uint8_t* p) {
  const uint32_t byte1 = p[0];
  const uint32_t byte0 = p[1];
  return (byte1 << 8) | byte0;
}

static inline __attribute__((always_inline