// /usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/cc1 -fpreprocessed /root/.ccache/wall.tmp.centaur.16146.i -quiet -dumpbase wall.tmp.centaur.16146.i -march=i386 -auxbase-strip /root/.ccache/tmp.hash.centaur.16146.o -O3 -fomit-frame-pointer -o -
# 1 "wall.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "wall.c"
# 17 "wall.c"
# 1 "/usr/include/stdio.h" 1 3 4
# 28 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 295 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 296 "/usr/include/features.h" 2 3 4
# 318 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 319 "/usr/include/features.h" 2 3 4
# 29 "/usr/include/stdio.h" 2 3 4





# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 213 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 3 4
typedef unsigned int size_t;
# 35 "/usr/include/stdio.h" 2 3 4

# 1 "/usr/include/bits/types.h" 1 3 4
# 28 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 29 "/usr/include/bits/types.h" 2 3 4


# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 32 "/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;




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







__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
# 129 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 130 "/usr/include/bits/types.h" 2 3 4






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

__extension__ typedef int __daddr_t;
__extension__ typedef long int __swblk_t;
__extension__ typedef int __key_t;


__extension__ typedef int __clockid_t;


__extension__ typedef int __timer_t;


__extension__ typedef long int __blksize_t;




__extension__ typedef long int __blkcnt_t;
__extension__ typedef long long int __blkcnt64_t;


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


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

__extension__ typedef int __ssize_t;



typedef __off64_t __loff_t;
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;


__extension__ typedef int __intptr_t;


__extension__ typedef unsigned int __socklen_t;
# 37 "/usr/include/stdio.h" 2 3 4
# 46 "/usr/include/stdio.h" 3 4
typedef struct _IO_FILE FILE;
# 62 "/usr/include/stdio.h" 3 4
typedef struct _IO_FILE __FILE;
# 72 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/libio.h" 1 3 4
# 32 "/usr/include/libio.h" 3 4
# 1 "/usr/include/_G_config.h" 1 3 4
# 14 "/usr/include/_G_config.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 325 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 3 4
typedef long int wchar_t;
# 354 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 3 4
typedef unsigned int wint_t;
# 15 "/usr/include/_G_config.h" 2 3 4
# 24 "/usr/include/_G_config.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4

# 1 "/usr/include/bits/wchar.h" 1 3 4
# 51 "/usr/include/wchar.h" 2 3 4
# 76 "/usr/include/wchar.h" 3 4
typedef struct
{
  int __count;
  union
  {
    wint_t __wch;
    char __wchb[4];
  } __value;
} __mbstate_t;
# 25 "/usr/include/_G_config.h" 2 3 4

typedef struct
{
  __off_t __pos;
  __mbstate_t __state;
} _G_fpos_t;
typedef struct
{
  __off64_t __pos;
  __mbstate_t __state;
} _G_fpos64_t;
# 44 "/usr/include/_G_config.h" 3 4
# 1 "/usr/include/gconv.h" 1 3 4
# 28 "/usr/include/gconv.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4
# 29 "/usr/include/gconv.h" 2 3 4


# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 32 "/usr/include/gconv.h" 2 3 4





enum
{
  __GCONV_OK = 0,
  __GCONV_NOCONV,
  __GCONV_NODB,
  __GCONV_NOMEM,

  __GCONV_EMPTY_INPUT,
  __GCONV_FULL_OUTPUT,
  __GCONV_ILLEGAL_INPUT,
  __GCONV_INCOMPLETE_INPUT,

  __GCONV_ILLEGAL_DESCRIPTOR,
  __GCONV_INTERNAL_ERROR
};



enum
{
  __GCONV_IS_LAST = 0x0001,
  __GCONV_IGNORE_ERRORS = 0x0002
};



struct __gconv_step;
struct __gconv_step_data;
struct __gconv_loaded_object;
struct __gconv_trans_data;



typedef int (*__gconv_fct) (struct __gconv_step *, struct __gconv_step_data *,
                            __const unsigned char **, __const unsigned char *,
                            unsigned char **, size_t *, int, int);


typedef wint_t (*__gconv_btowc_fct) (struct __gconv_step *, unsigned char);


typedef int (*__gconv_init_fct) (struct __gconv_step *);
typedef void (*__gconv_end_fct) (struct __gconv_step *);



typedef int (*__gconv_trans_fct) (struct __gconv_step *,
                                  struct __gconv_step_data *, void *,
                                  __const unsigned char *,
                                  __const unsigned char **,
                                  __const unsigned char *, unsigned char **,
                                  size_t *);


typedef int (*__gconv_trans_context_fct) (void *, __const unsigned char *,
                                          __const unsigned char *,
                                          unsigned char *, unsigned char *);


typedef int (*__gconv_trans_query_fct) (__const char *, __const char ***,
                                        size_t *);


typedef int (*__gconv_trans_init_fct) (void **, const char *);
typedef void (*__gconv_trans_end_fct) (void *);

struct __gconv_trans_data
{

  __gconv_trans_fct __trans_fct;
  __gconv_trans_context_fct __trans_context_fct;
  __gconv_trans_end_fct __trans_end_fct;
  void *__data;
  struct __gconv_trans_data *__next;
};



struct __gconv_step
{
  struct __gconv_loaded_object *__shlib_handle;
  __const char *__modname;

  int __counter;

  char *__from_name;
  char *__to_name;

  __gconv_fct __fct;
  __gconv_btowc_fct __btowc_fct;
  __gconv_init_fct __init_fct;
  __gconv_end_fct __end_fct;



  int __min_needed_from;
  int __max_needed_from;
  int __min_needed_to;
  int __max_needed_to;


  int __stateful;

  void *__data;
};



struct __gconv_step_data
{
  unsigned char *__outbuf;
  unsigned char *__outbufend;



  int __flags;



  int __invocation_counter;



  int __internal_use;

  __mbstate_t *__statep;
  __mbstate_t __state;



  struct __gconv_trans_data *__trans;
};



typedef struct __gconv_info
{
  size_t __nsteps;
  struct __gconv_step *__steps;
  __extension__ struct __gconv_step_data __data [];
} *__gconv_t;
# 45 "/usr/include/_G_config.h" 2 3 4
typedef union
{
  struct __gconv_info __cd;
  struct
  {
    struct __gconv_info __cd;
    struct __gconv_step_data __data;
  } __combined;
} _G_iconv_t;

typedef int _G_int16_t __attribute__ ((__mode__ (__HI__)));
typedef int _G_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
# 33 "/usr/include/libio.h" 2 3 4
# 53 "/usr/include/libio.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stdarg.h" 1 3 4
# 43 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 54 "/usr/include/libio.h" 2 3 4
# 163 "/usr/include/libio.h" 3 4
struct _IO_jump_t; struct _IO_FILE;
# 173 "/usr/include/libio.h" 3 4
typedef void _IO_lock_t;





struct _IO_marker {
  struct _IO_marker *_next;
  struct _IO_FILE *_sbuf;



  int _pos;
# 196 "/usr/include/libio.h" 3 4
};


enum __codecvt_result
{
  __codecvt_ok,
  __codecvt_partial,
  __codecvt_error,
  __codecvt_noconv
};
# 264 "/usr/include/libio.h" 3 4
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;
# 312 "/usr/include/libio.h" 3 4
  __off64_t _offset;





  void *__pad1;
  void *__pad2;

  int _mode;

  char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];

};


typedef struct _IO_FILE _IO_FILE;


struct _IO_FILE_plus;

extern struct _IO_FILE_plus _IO_2_1_stdin_;
extern struct _IO_FILE_plus _IO_2_1_stdout_;
extern struct _IO_FILE_plus _IO_2_1_stderr_;
# 351 "/usr/include/libio.h" 3 4
typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);







typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf,
                                 size_t __n);







typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w);


typedef int __io_close_fn (void *__cookie);




typedef __io_read_fn cookie_read_function_t;
typedef __io_write_fn cookie_write_function_t;
typedef __io_seek_fn cookie_seek_function_t;
typedef __io_close_fn cookie_close_function_t;


typedef struct
{
  __io_read_fn *read;
  __io_write_fn *write;
  __io_seek_fn *seek;
  __io_close_fn *close;
} _IO_cookie_io_functions_t;
typedef _IO_cookie_io_functions_t cookie_io_functions_t;

struct _IO_cookie_file;


extern void _IO_cookie_init (struct _IO_cookie_file *__cfile, int __read_write,
                             void *__cookie, _IO_cookie_io_functions_t __fns);







extern int __underflow (_IO_FILE *) ;
extern int __uflow (_IO_FILE *) ;
extern int __overflow (_IO_FILE *, int) ;
extern wint_t __wunderflow (_IO_FILE *) ;
extern wint_t __wuflow (_IO_FILE *) ;
extern wint_t __woverflow (_IO_FILE *, wint_t) ;
# 433 "/usr/include/libio.h" 3 4
extern int _IO_getc (_IO_FILE *__fp) ;
extern int _IO_putc (int __c, _IO_FILE *__fp) ;
extern int _IO_feof (_IO_FILE *__fp) ;
extern int _IO_ferror (_IO_FILE *__fp) ;

extern int _IO_peekc_locked (_IO_FILE *__fp) ;





extern void _IO_flockfile (_IO_FILE *) ;
extern void _IO_funlockfile (_IO_FILE *) ;
extern int _IO_ftrylockfile (_IO_FILE *) ;
# 463 "/usr/include/libio.h" 3 4
extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
                        __gnuc_va_list, int *__restrict) ;
extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
                         __gnuc_va_list) ;
extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t) ;
extern size_t _IO_sgetn (_IO_FILE *, void *, size_t) ;

extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int) ;
extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int) ;

extern void _IO_free_backup_area (_IO_FILE *) ;
# 73 "/usr/include/stdio.h" 2 3 4




typedef __gnuc_va_list va_list;
# 86 "/usr/include/stdio.h" 3 4


typedef _G_fpos_t fpos_t;





typedef _G_fpos64_t fpos64_t;
# 138 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio_lim.h" 1 3 4
# 139 "/usr/include/stdio.h" 2 3 4



extern struct _IO_FILE *stdin;
extern struct _IO_FILE *stdout;
extern struct _IO_FILE *stderr;







extern int remove (__const char *__filename) ;

extern int rename (__const char *__old, __const char *__new) ;
# 164 "/usr/include/stdio.h" 3 4
extern FILE *tmpfile (void);
# 174 "/usr/include/stdio.h" 3 4
extern FILE *tmpfile64 (void);



extern char *tmpnam (char *__s) ;





extern char *tmpnam_r (char *__s) ;
# 196 "/usr/include/stdio.h" 3 4
extern char *tempnam (__const char *__dir, __const char *__pfx)
     __attribute__ ((__malloc__));
# 206 "/usr/include/stdio.h" 3 4
extern int fclose (FILE *__stream);




extern int fflush (FILE *__stream);
# 221 "/usr/include/stdio.h" 3 4
extern int fflush_unlocked (FILE *__stream);
# 231 "/usr/include/stdio.h" 3 4
extern int fcloseall (void);
# 241 "/usr/include/stdio.h" 3 4
extern FILE *fopen (__const char *__restrict __filename,
                    __const char *__restrict __modes);




extern FILE *freopen (__const char *__restrict __filename,
                      __const char *__restrict __modes,
                      FILE *__restrict __stream);
# 262 "/usr/include/stdio.h" 3 4


extern FILE *fopen64 (__const char *__restrict __filename,
                      __const char *__restrict __modes);
extern FILE *freopen64 (__const char *__restrict __filename,
                        __const char *__restrict __modes,
                        FILE *__restrict __stream);




extern FILE *fdopen (int __fd, __const char *__modes) ;





extern FILE *fopencookie (void *__restrict __magic_cookie,
                          __const char *__restrict __modes,
                          _IO_cookie_io_functions_t __io_funcs) ;


extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes) ;




extern FILE *open_memstream (char **__restrict __bufloc,
                             size_t *__restrict __sizeloc) ;






extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) ;



extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
                    int __modes, size_t __n) ;





extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
                       size_t __size) ;


extern void setlinebuf (FILE *__stream) ;
# 321 "/usr/include/stdio.h" 3 4
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, ...) ;





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) ;





extern int snprintf (char *__restrict __s, size_t __maxlen,
                     __const char *__restrict __format, ...)
     __attribute__ ((__format__ (__printf__, 3, 4)));

extern int vsnprintf (char *__restrict __s, size_t __maxlen,
                      __const char *__restrict __format, __gnuc_va_list __arg)
     __attribute__ ((__format__ (__printf__, 3, 0)));






extern int vasprintf (char **__restrict __ptr, __const char *__restrict __f,
                      __gnuc_va_list __arg)
     __attribute__ ((__format__ (__printf__, 2, 0)));
extern int __asprintf (char **__restrict __ptr,
                       __const char *__restrict __fmt, ...)
     __attribute__ ((__format__ (__printf__, 2, 3)));
extern int asprintf (char **__restrict __ptr,
                     __const char *__restrict __fmt, ...)
     __attribute__ ((__format__ (__printf__, 2, 3)));







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)));
# 393 "/usr/include/stdio.h" 3 4
extern int fscanf (FILE *__restrict __stream,
                   __const char *__restrict __format, ...);




extern int scanf (__const char *__restrict __format, ...);

extern int sscanf (__const char *__restrict __s,
                   __const char *__restrict __format, ...) ;
# 411 "/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)));





extern int vscanf (__const char *__restrict __format, __gnuc_va_list __arg)
     __attribute__ ((__format__ (__scanf__, 1, 0)));


extern int vsscanf (__const char *__restrict __s,
                    __const char *__restrict __format, __gnuc_va_list __arg)
     __attribute__ ((__format__ (__scanf__, 2, 0)));
# 435 "/usr/include/stdio.h" 3 4
extern int fgetc (FILE *__stream);
extern int getc (FILE *__stream);





extern int getchar (void);
# 454 "/usr/include/stdio.h" 3 4
extern int getc_unlocked (FILE *__stream);
extern int getchar_unlocked (void);
# 465 "/usr/include/stdio.h" 3 4
extern int fgetc_unlocked (FILE *__stream);
# 477 "/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);
# 498 "/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);
# 526 "/usr/include/stdio.h" 3 4
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream);






extern char *gets (char *__s);
# 543 "/usr/include/stdio.h" 3 4
extern char *fgets_unlocked (char *__restrict __s, int __n,
                             FILE *__restrict __stream);
# 559 "/usr/include/stdio.h" 3 4
extern __ssize_t __getdelim (char **__restrict __lineptr,
                               size_t *__restrict __n, int __delimiter,
                               FILE *__restrict __stream);
extern __ssize_t getdelim (char **__restrict __lineptr,
                             size_t *__restrict __n, int __delimiter,
                             FILE *__restrict __stream);







extern __ssize_t getline (char **__restrict __lineptr,
                            size_t *__restrict __n,
                            FILE *__restrict __stream);
# 583 "/usr/include/stdio.h" 3 4
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);




extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
                      size_t __n, FILE *__restrict __s);
# 620 "/usr/include/stdio.h" 3 4
extern int fputs_unlocked (__const char *__restrict __s,
                           FILE *__restrict __stream);
# 631 "/usr/include/stdio.h" 3 4
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
                              size_t __n, FILE *__restrict __stream);
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
                               size_t __n, FILE *__restrict __stream);
# 643 "/usr/include/stdio.h" 3 4
extern int fseek (FILE *__stream, long int __off, int __whence);




extern long int ftell (FILE *__stream);




extern void rewind (FILE *__stream);
# 667 "/usr/include/stdio.h" 3 4
extern int fseeko (FILE *__stream, __off_t __off, int __whence);




extern __off_t ftello (FILE *__stream);
# 686 "/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);
# 709 "/usr/include/stdio.h" 3 4



extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
extern __off64_t ftello64 (FILE *__stream);
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos);




extern void clearerr (FILE *__stream) ;

extern int feof (FILE *__stream) ;

extern int ferror (FILE *__stream) ;




extern void clearerr_unlocked (FILE *__stream) ;
extern int feof_unlocked (FILE *__stream) ;
extern int ferror_unlocked (FILE *__stream) ;
# 740 "/usr/include/stdio.h" 3 4
extern void perror (__const char *__s);






# 1 "/usr/include/bits/sys_errlist.h" 1 3 4
# 27 "/usr/include/bits/sys_errlist.h" 3 4
extern int sys_nerr;
extern __const char *__const sys_errlist[];


extern int _sys_nerr;
extern __const char *__const _sys_errlist[];
# 748 "/usr/include/stdio.h" 2 3 4




extern int fileno (FILE *__stream) ;




extern int fileno_unlocked (FILE *__stream) ;
# 767 "/usr/include/stdio.h" 3 4
extern FILE *popen (__const char *__command, __const char *__modes);





extern int pclose (FILE *__stream);





extern char *ctermid (char *__s) ;





extern char *cuserid (char *__s);




struct obstack;


extern int obstack_printf (struct obstack *__restrict __obstack,
                           __const char *__restrict __format, ...)
     __attribute__ ((__format__ (__printf__, 2, 3)));
extern int obstack_vprintf (struct obstack *__restrict __obstack,
                            __const char *__restrict __format,
                            __gnuc_va_list __args)
     __attribute__ ((__format__ (__printf__, 2, 0)));







extern void flockfile (FILE *__stream) ;



extern int ftrylockfile (FILE *__stream) ;


extern void funlockfile (FILE *__stream) ;
# 828 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio.h" 1 3 4
# 33 "/usr/include/bits/stdio.h" 3 4
extern __inline int
vprintf (__const char *__restrict __fmt, __gnuc_va_list __arg)
{
  return vfprintf (stdout, __fmt, __arg);
}


extern __inline int
getchar (void)
{
  return _IO_getc (stdin);
}




extern __inline int
getc_unlocked (FILE *__fp)
{
  return ((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end ? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++);
}


extern __inline int
getchar_unlocked (void)
{
  return ((stdin)->_IO_read_ptr >= (stdin)->_IO_read_end ? __uflow (stdin) : *(unsigned char *) (stdin)->_IO_read_ptr++);
}




extern __inline int
putchar (int __c)
{
  return _IO_putc (__c, stdout);
}




extern __inline int
fputc_unlocked (int __c, FILE *__stream)
{
  return (((__stream)->_IO_write_ptr >= (__stream)->_IO_write_end) ? __overflow (__stream, (unsigned char) (__c)) : (unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}





extern __inline int
putc_unlocked (int __c, FILE *__stream)
{
  return (((__stream)->_IO_write_ptr >= (__stream)->_IO_write_end) ? __overflow (__stream, (unsigned char) (__c)) : (unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}


extern __inline int
putchar_unlocked (int __c)
{
  return (((stdout)->_IO_write_ptr >= (stdout)->_IO_write_end) ? __overflow (stdout, (unsigned char) (__c)) : (unsigned char) (*(stdout)->_IO_write_ptr++ = (__c)));
}





extern __inline __ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream)
{
  return __getdelim (__lineptr, __n, '\n', __stream);
}





extern __inline int
feof_unlocked (FILE *__stream)
{
  return (((__stream)->_flags & 0x10) != 0);
}


extern __inline int
ferror_unlocked (FILE *__stream)
{
  return (((__stream)->_flags & 0x20) != 0);
}
# 829 "/usr/include/stdio.h" 2 3 4
# 18 "wall.c" 2
# 1 "/usr/include/string.h" 1 3 4
# 28 "/usr/include/string.h" 3 4





# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 34 "/usr/include/string.h" 2 3 4




extern void *memcpy (void *__restrict __dest,
                     __const void *__restrict __src, size_t __n) ;


extern void *memmove (void *__dest, __const void *__src, size_t __n)
     ;






extern void *memccpy (void *__restrict __dest, __const void *__restrict __src,
                      int __c, size_t __n)
     ;





extern void *memset (void *__s, int __c, size_t __n) ;


extern int memcmp (__const void *__s1, __const void *__s2, size_t __n)
     __attribute__ ((__pure__));


extern void *memchr (__const void *__s, int __c, size_t __n)
      __attribute__ ((__pure__));





extern void *rawmemchr (__const void *__s, int __c) __attribute__ ((__pure__));


extern void *memrchr (__const void *__s, int __c, size_t __n)
      __attribute__ ((__pure__));





extern char *strcpy (char *__restrict __dest, __const char *__restrict __src)
     ;

extern char *strncpy (char *__restrict __dest,
                      __const char *__restrict __src, size_t __n) ;


extern char *strcat (char *__restrict __dest, __const char *__restrict __src)
     ;

extern char *strncat (char *__restrict __dest, __const char *__restrict __src,
                      size_t __n) ;


extern int strcmp (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));

extern int strncmp (__const char *__s1, __const char *__s2, size_t __n)
     __attribute__ ((__pure__));


extern int strcoll (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));

extern size_t strxfrm (char *__restrict __dest,
                       __const char *__restrict __src, size_t __n) ;






# 1 "/usr/include/xlocale.h" 1 3 4
# 28 "/usr/include/xlocale.h" 3 4
typedef 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];
} *__locale_t;
# 115 "/usr/include/string.h" 2 3 4


extern int strcoll_l (__const char *__s1, __const char *__s2, __locale_t __l)
     __attribute__ ((__pure__));

extern size_t strxfrm_l (char *__dest, __const char *__src, size_t __n,
                         __locale_t __l) ;




extern char *strdup (__const char *__s) __attribute__ ((__malloc__));






extern char *strndup (__const char *__string, size_t __n)
     __attribute__ ((__malloc__));
# 160 "/usr/include/string.h" 3 4


extern char *strchr (__const char *__s, int __c) __attribute__ ((__pure__));

extern char *strrchr (__const char *__s, int __c) __attribute__ ((__pure__));





extern char *strchrnul (__const char *__s, int __c) __attribute__ ((__pure__));





extern size_t strcspn (__const char *__s, __const char *__reject)
     __attribute__ ((__pure__));


extern size_t strspn (__const char *__s, __const char *__accept)
     __attribute__ ((__pure__));

extern char *strpbrk (__const char *__s, __const char *__accept)
     __attribute__ ((__pure__));

extern char *strstr (__const char *__haystack, __const char *__needle)
     __attribute__ ((__pure__));



extern char *strtok (char *__restrict __s, __const char *__restrict __delim)
     ;




extern char *__strtok_r (char *__restrict __s,
                         __const char *__restrict __delim,
                         char **__restrict __save_ptr) ;

extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim,
                       char **__restrict __save_ptr) ;




extern char *strcasestr (__const char *__haystack, __const char *__needle)
     __attribute__ ((__pure__));






extern void *memmem (__const void *__haystack, size_t __haystacklen,
                     __const void *__needle, size_t __needlelen)
     __attribute__ ((__pure__));



extern void *__mempcpy (void *__restrict __dest,
                        __const void *__restrict __src, size_t __n) ;
extern void *mempcpy (void *__restrict __dest,
                      __const void *__restrict __src, size_t __n) ;





extern size_t strlen (__const char *__s) __attribute__ ((__pure__));





extern size_t strnlen (__const char *__string, size_t __maxlen)
     __attribute__ ((__pure__));





extern char *strerror (int __errnum) ;




extern char *strerror_r (int __errnum, char *__buf, size_t __buflen) ;




extern void __bzero (void *__s, size_t __n) ;



extern void bcopy (__const void *__src, void *__dest, size_t __n) ;


extern void bzero (void *__s, size_t __n) ;


extern int bcmp (__const void *__s1, __const void *__s2, size_t __n)
     __attribute__ ((__pure__));


extern char *index (__const char *__s, int __c) __attribute__ ((__pure__));


extern char *rindex (__const char *__s, int __c) __attribute__ ((__pure__));



extern int ffs (int __i) __attribute__ ((__const__));




extern int ffsl (long int __l) __attribute__ ((__const__));

__extension__ extern int ffsll (long long int __ll)
     __attribute__ ((__const__));




extern int strcasecmp (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));


extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n)
     __attribute__ ((__pure__));





extern int strcasecmp_l (__const char *__s1, __const char *__s2,
                         __locale_t __loc) __attribute__ ((__pure__));

extern int strncasecmp_l (__const char *__s1, __const char *__s2,
                          size_t __n, __locale_t __loc)
     __attribute__ ((__pure__));





extern char *strsep (char **__restrict __stringp,
                     __const char *__restrict __delim) ;




extern int strverscmp (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));


extern char *strsignal (int __sig) ;


extern char *__stpcpy (char *__restrict __dest, __const char *__restrict __src)
     ;
extern char *stpcpy (char *__restrict __dest, __const char *__restrict __src)
     ;



extern char *__stpncpy (char *__restrict __dest,
                        __const char *__restrict __src, size_t __n) ;
extern char *stpncpy (char *__restrict __dest,
                      __const char *__restrict __src, size_t __n) ;


extern char *strfry (char *__string) ;


extern void *memfrob (void *__s, size_t __n) ;






extern char *basename (__const char *__filename) ;
# 372 "/usr/include/string.h" 3 4
# 1 "/usr/include/bits/string.h" 1 3 4
# 373 "/usr/include/string.h" 2 3 4


# 1 "/usr/include/bits/string2.h" 1 3 4
# 52 "/usr/include/bits/string2.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 37 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/endian.h" 1 3 4
# 38 "/usr/include/endian.h" 2 3 4
# 53 "/usr/include/bits/string2.h" 2 3 4
# 389 "/usr/include/bits/string2.h" 3 4
extern void *__rawmemchr (const void *__s, int __c);
# 919 "/usr/include/bits/string2.h" 3 4
extern __inline size_t __strcspn_c1 (__const char *__s, int __reject);
extern __inline size_t
__strcspn_c1 (__const char *__s, int __reject)
{
  register size_t __result = 0;
  while (__s[__result] != '\0' && __s[__result] != __reject)
    ++__result;
  return __result;
}

extern __inline size_t __strcspn_c2 (__const char *__s, int __reject1,
                                     int __reject2);
extern __inline size_t
__strcspn_c2 (__const char *__s, int __reject1, int __reject2)
{
  register size_t __result = 0;
  while (__s[__result] != '\0' && __s[__result] != __reject1
         && __s[__result] != __reject2)
    ++__result;
  return __result;
}

extern __inline size_t __strcspn_c3 (__const char *__s, int __reject1,
                                     int __reject2, int __reject3);
extern __inline size_t
__strcspn_c3 (__const char *__s, int __reject1, int __reject2,
              int __reject3)
{
  register size_t __result = 0;
  while (__s[__result] != '\0' && __s[__result] != __reject1
         && __s[__result] != __reject2 && __s[__result] != __reject3)
    ++__result;
  return __result;
}
# 976 "/usr/include/bits/string2.h" 3 4
extern __inline size_t __strspn_c1 (__const char *__s, int __accept);
extern __inline size_t
__strspn_c1 (__const char *__s, int __accept)
{
  register size_t __result = 0;

  while (__s[__result] == __accept)
    ++__result;
  return __result;
}

extern __inline size_t __strspn_c2 (__const char *__s, int __accept1,
                                    int __accept2);
extern __inline size_t
__strspn_c2 (__const char *__s, int __accept1, int __accept2)
{
  register size_t __result = 0;

  while (__s[__result] == __accept1 || __s[__result] == __accept2)
    ++__result;
  return __result;
}

extern __inline size_t __strspn_c3 (__const char *__s, int __accept1,
                                    int __accept2, int __accept3);
extern __inline size_t
__strspn_c3 (__const char *__s, int __accept1, int __accept2, int __accept3)
{
  register size_t __result = 0;

  while (__s[__result] == __accept1 || __s[__result] == __accept2
         || __s[__result] == __accept3)
    ++__result;
  return __result;
}
# 1033 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strpbrk_c2 (__const char *__s, int __accept1,
                                     int __accept2);
extern __inline char *
__strpbrk_c2 (__const char *__s, int __accept1, int __accept2)
{

  while (*__s != '\0' && *__s != __accept1 && *__s != __accept2)
    ++__s;
  return *__s == '\0' ? ((void *)0) : (char *) (size_t) __s;
}

extern __inline char *__strpbrk_c3 (__const char *__s, int __accept1,
                                     int __accept2, int __accept3);
extern __inline char *
__strpbrk_c3 (__const char *__s, int __accept1, int __accept2,
              int __accept3)
{

  while (*__s != '\0' && *__s != __accept1 && *__s != __accept2
         && *__s != __accept3)
    ++__s;
  return *__s == '\0' ? ((void *)0) : (char *) (size_t) __s;
}
# 1085 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strtok_r_1c (char *__s, char __sep, char **__nextp);
extern __inline char *
__strtok_r_1c (char *__s, char __sep, char **__nextp)
{
  char *__result;
  if (__s == ((void *)0))
    __s = *__nextp;
  while (*__s == __sep)
    ++__s;
  __result = ((void *)0);
  if (*__s != '\0')
    {
      __result = __s++;
      while (*__s != '\0')
        if (*__s++ == __sep)
          {
            __s[-1] = '\0';
            break;
          }
      *__nextp = __s;
    }
  return __result;
}
# 1117 "/usr/include/bits/string2.h" 3 4
extern char *__strsep_g (char **__stringp, __const char *__delim);
# 1135 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strsep_1c (char **__s, char __reject);
extern __inline char *
__strsep_1c (char **__s, char __reject)
{
  register char *__retval = *__s;
  if (__retval != ((void *)0) && (*__s = (__extension__ (__builtin_constant_p (__reject) && (__reject) == '\0' ? (char *) __rawmemchr (__retval, __reject) : strchr (__retval, __reject)))) != ((void *)0))
    *(*__s)++ = '\0';
  return __retval;
}

extern __inline char *__strsep_2c (char **__s, char __reject1, char __reject2);
extern __inline char *
__strsep_2c (char **__s, char __reject1, char __reject2)
{
  register char *__retval = *__s;
  if (__retval != ((void *)0))
    {
      register char *__cp = __retval;
      while (1)
        {
          if (*__cp == '\0')
            {
              __cp = ((void *)0);
          break;
            }
          if (*__cp == __reject1 || *__cp == __reject2)
            {
              *__cp++ = '\0';
              break;
            }
          ++__cp;
        }
      *__s = __cp;
    }
  return __retval;
}

extern __inline char *__strsep_3c (char **__s, char __reject1, char __reject2,
                                   char __reject3);
extern __inline char *
__strsep_3c (char **__s, char __reject1, char __reject2, char __reject3)
{
  register char *__retval = *__s;
  if (__retval != ((void *)0))
    {
      register char *__cp = __retval;
      while (1)
        {
          if (*__cp == '\0')
            {
              __cp = ((void *)0);
          break;
            }
          if (*__cp == __reject1 || *__cp == __reject2 || *__cp == __reject3)
            {
              *__cp++ = '\0';
              break;
            }
          ++__cp;
        }
      *__s = __cp;
    }
  return __retval;
}
# 1211 "/usr/include/bits/string2.h" 3 4
# 1 "/usr/include/stdlib.h" 1 3 4
# 33 "/usr/include/stdlib.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 34 "/usr/include/stdlib.h" 2 3 4
# 554 "/usr/include/stdlib.h" 3 4


extern void *malloc (size_t __size) __attribute__ ((__malloc__));

extern void *calloc (size_t __nmemb, size_t __size)
     __attribute__ ((__malloc__));
# 922 "/usr/include/stdlib.h" 3 4
# 1212 "/usr/include/bits/string2.h" 2 3 4




extern char *__strdup (__const char *__string) __attribute__ ((__malloc__));
# 1235 "/usr/include/bits/string2.h" 3 4
extern char *__strndup (__const char *__string, size_t __n)
     __attribute__ ((__malloc__));
# 376 "/usr/include/string.h" 2 3 4
# 19 "wall.c" 2
# 1 "/usr/include/stdlib.h" 1 3 4
# 33 "/usr/include/stdlib.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 34 "/usr/include/stdlib.h" 2 3 4
# 42 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/bits/waitflags.h" 1 3 4
# 43 "/usr/include/stdlib.h" 2 3 4
# 1 "/usr/include/bits/waitstatus.h" 1 3 4
# 65 "/usr/include/bits/waitstatus.h" 3 4
union wait
  {
    int w_status;
    struct
      {

        unsigned int __w_termsig:7;
        unsigned int __w_coredump:1;
        unsigned int __w_retcode:8;
        unsigned int:16;







      } __wait_terminated;
    struct
      {

        unsigned int __w_stopval:8;
        unsigned int __w_stopsig:8;
        unsigned int:16;






      } __wait_stopped;
  };
# 44 "/usr/include/stdlib.h" 2 3 4
# 68 "/usr/include/stdlib.h" 3 4
typedef union
  {
    union wait *__uptr;
    int *__iptr;
  } __WAIT_STATUS __attribute__ ((__transparent_union__));
# 93 "/usr/include/stdlib.h" 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;
# 137 "/usr/include/stdlib.h" 3 4
extern size_t __ctype_get_mb_cur_max (void) ;




extern double atof (__const char *__nptr) __attribute__ ((__pure__));

extern int atoi (__const char *__nptr) __attribute__ ((__pure__));

extern long int atol (__const char *__nptr) __attribute__ ((__pure__));





__extension__ extern long long int atoll (__const char *__nptr)
     __attribute__ ((__pure__));





extern double strtod (__const char *__restrict __nptr,
                      char **__restrict __endptr) ;





extern float strtof (__const char *__restrict __nptr,
                     char **__restrict __endptr) ;

extern long double strtold (__const char *__restrict __nptr,
                            char **__restrict __endptr) ;





extern long int strtol (__const char *__restrict __nptr,
                        char **__restrict __endptr, int __base) ;

extern unsigned long int strtoul (__const char *__restrict __nptr,
                                  char **__restrict __endptr, int __base)
     ;




__extension__
extern long long int strtoq (__const char *__restrict __nptr,
                             char **__restrict __endptr, int __base) ;

__extension__
extern unsigned long long int strtouq (__const char *__restrict __nptr,
                                       char **__restrict __endptr, int __base)
     ;





__extension__
extern long long int strtoll (__const char *__restrict __nptr,
                              char **__restrict __endptr, int __base) ;

__extension__
extern unsigned long long int strtoull (__const char *__restrict __nptr,
                                        char **__restrict __endptr, int __base)
     ;
# 229 "/usr/include/stdlib.h" 3 4
extern long int strtol_l (__const char *__restrict __nptr,
                          char **__restrict __endptr, int __base,
                          __locale_t __loc) ;

extern unsigned long int strtoul_l (__const char *__restrict __nptr,
                                    char **__restrict __endptr,
                                    int __base, __locale_t __loc) ;

__extension__
extern long long int strtoll_l (__const char *__restrict __nptr,
                                char **__restrict __endptr, int __base,
                                __locale_t __loc) ;

__extension__
extern unsigned long long int strtoull_l (__const char *__restrict __nptr,
                                          char **__restrict __endptr,
                                          int __base, __locale_t __loc)
     ;

extern double strtod_l (__const char *__restrict __nptr,
                        char **__restrict __endptr, __locale_t __loc)
     ;

extern float strtof_l (__const char *__restrict __nptr,
                       char **__restrict __endptr, __locale_t __loc) ;

extern long double strtold_l (__const char *__restrict __nptr,
                              char **__restrict __endptr,
                              __locale_t __loc) ;






extern double __strtod_internal (__const char *__restrict __nptr,
                                 char **__restrict __endptr, int __group)
     ;
extern float __strtof_internal (__const char *__restrict __nptr,
                                char **__restrict __endptr, int __group)
     ;
extern long double __strtold_internal (__const char *__restrict __nptr,
                                       char **__restrict __endptr,
                                       int __group) ;

extern long int __strtol_internal (__const char *__restrict __nptr,
                                   char **__restrict __endptr,
                                   int __base, int __group) ;



extern unsigned long int __strtoul_internal (__const char *__restrict __nptr,
                                             char **__restrict __endptr,
                                             int __base, int __group) ;




__extension__
extern long long int __strtoll_internal (__const char *__restrict __nptr,
                                         char **__restrict __endptr,
                                         int __base, int __group) ;



__extension__
extern unsigned long long int __strtoull_internal (__const char *
                                                   __restrict __nptr,
                                                   char **__restrict __endptr,
                                                   int __base, int __group)
     ;
# 308 "/usr/include/stdlib.h" 3 4
extern __inline double
strtod (__const char *__restrict __nptr, char **__restrict __endptr)
{
  return __strtod_internal (__nptr, __endptr, 0);
}
extern __inline long int
strtol (__const char *__restrict __nptr, char **__restrict __endptr,
        int __base)
{
  return __strtol_internal (__nptr, __endptr, __base, 0);
}
extern __inline unsigned long int
strtoul (__const char *__restrict __nptr, char **__restrict __endptr,
         int __base)
{
  return __strtoul_internal (__nptr, __endptr, __base, 0);
}




extern __inline float
strtof (__const char *__restrict __nptr, char **__restrict __endptr)
{
  return __strtof_internal (__nptr, __endptr, 0);
}
extern __inline long double
strtold (__const char *__restrict __nptr, char **__restrict __endptr)
{
  return __strtold_internal (__nptr, __endptr, 0);
}




__extension__ extern __inline long long int
strtoq (__const char *__restrict __nptr, char **__restrict __endptr,
        int __base)
{
  return __strtoll_internal (__nptr, __endptr, __base, 0);
}
__extension__ extern __inline unsigned long long int
strtouq (__const char *__restrict __nptr, char **__restrict __endptr,
         int __base)
{
  return __strtoull_internal (__nptr, __endptr, __base, 0);
}




__extension__ extern __inline long long int
strtoll (__const char *__restrict __nptr, char **__restrict __endptr,
         int __base)
{
  return __strtoll_internal (__nptr, __endptr, __base, 0);
}
__extension__ extern __inline unsigned long long int
strtoull (__const char * __restrict __nptr, char **__restrict __endptr,
          int __base)
{
  return __strtoull_internal (__nptr, __endptr, __base, 0);
}




extern __inline double
atof (__const char *__nptr)
{
  return strtod (__nptr, (char **) ((void *)0));
}
extern __inline int
atoi (__const char *__nptr)
{
  return (int) strtol (__nptr, (char **) ((void *)0), 10);
}
extern __inline long int
atol (__const char *__nptr)
{
  return strtol (__nptr, (char **) ((void *)0), 10);
}




__extension__ extern __inline long long int
atoll (__const char *__nptr)
{
  return strtoll (__nptr, (char **) ((void *)0), 10);
}
# 408 "/usr/include/stdlib.h" 3 4
extern char *l64a (long int __n) ;


extern long int a64l (__const char *__s) __attribute__ ((__pure__));




# 1 "/usr/include/sys/types.h" 1 3 4
# 29 "/usr/include/sys/types.h" 3 4






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;
# 133 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/time.h" 1 3 4
# 58 "/usr/include/time.h" 3 4


typedef __clock_t clock_t;
# 74 "/usr/include/time.h" 3 4


typedef __time_t time_t;
# 92 "/usr/include/time.h" 3 4
typedef __clockid_t clockid_t;
# 104 "/usr/include/time.h" 3 4
typedef __timer_t timer_t;
# 134 "/usr/include/sys/types.h" 2 3 4



typedef __useconds_t useconds_t;



typedef __suseconds_t suseconds_t;





# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 148 "/usr/include/sys/types.h" 2 3 4



typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 191 "/usr/include/sys/types.h" 3 4
typedef int int8_t __attribute__ ((__mode__ (__QI__)));
typedef int int16_t __attribute__ ((__mode__ (__HI__)));
typedef int int32_t __attribute__ ((__mode__ (__SI__)));
typedef int int64_t __attribute__ ((__mode__ (__DI__)));


typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));

typedef int register_t __attribute__ ((__mode__ (__word__)));
# 216 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/sys/select.h" 1 3 4
# 31 "/usr/include/sys/select.h" 3 4
# 1 "/usr/include/bits/select.h" 1 3 4
# 32 "/usr/include/sys/select.h" 2 3 4


# 1 "/usr/include/bits/sigset.h" 1 3 4
# 23 "/usr/include/bits/sigset.h" 3 4
typedef int __sig_atomic_t;




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



typedef __sigset_t sigset_t;





# 1 "/usr/include/time.h" 1 3 4
# 118 "/usr/include/time.h" 3 4
struct timespec
  {
    __time_t tv_sec;
    long int tv_nsec;
  };
# 45 "/usr/include/sys/select.h" 2 3 4

# 1 "/usr/include/bits/time.h" 1 3 4
# 69 "/usr/include/bits/time.h" 3 4
struct timeval
  {
    __time_t tv_sec;
    __suseconds_t tv_usec;
  };
# 47 "/usr/include/sys/select.h" 2 3 4
# 55 "/usr/include/sys/select.h" 3 4
typedef long int __fd_mask;
# 67 "/usr/include/sys/select.h" 3 4
typedef struct
  {



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





  } fd_set;






typedef __fd_mask fd_mask;
# 99 "/usr/include/sys/select.h" 3 4
# 109 "/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);
# 121 "/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);
# 217 "/usr/include/sys/types.h" 2 3 4


# 1 "/usr/include/sys/sysmacros.h" 1 3 4
# 29 "/usr/include/sys/sysmacros.h" 3 4
__extension__
extern __inline unsigned int gnu_dev_major (unsigned long long int __dev)
     ;
__extension__
extern __inline unsigned int gnu_dev_minor (unsigned long long int __dev)
     ;
__extension__
extern __inline unsigned long long int gnu_dev_makedev (unsigned int __major,
                                                        unsigned int __minor)
     ;


__extension__ extern __inline unsigned int
gnu_dev_major (unsigned long long int __dev)
{
  return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
}

__extension__ extern __inline unsigned int
gnu_dev_minor (unsigned long long int __dev)
{
  return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
}

__extension__ extern __inline unsigned long long int
gnu_dev_makedev (unsigned int __major, unsigned int __minor)
{
  return ((__minor & 0xff) | ((__major & 0xfff) << 8)
          | (((unsigned long long int) (__minor & ~0xff)) << 12)
          | (((unsigned long long int) (__major & ~0xfff)) << 32));
}
# 220 "/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;
# 258 "/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/sched.h" 1 3 4
# 83 "/usr/include/bits/sched.h" 3 4
struct __sched_param
  {
    int __sched_priority;
  };
# 24 "/usr/include/bits/pthreadtypes.h" 2 3 4


struct _pthread_fastlock
{
  long int __status;
  int __spinlock;

};



typedef struct _pthread_descr_struct *_pthread_descr;





typedef struct __pthread_attr_s
{
  int __detachstate;
  int __schedpolicy;
  struct __sched_param __schedparam;
  int __inheritsched;
  int __scope;
  size_t __guardsize;
  int __stackaddr_set;
  void *__stackaddr;
  size_t __stacksize;
} pthread_attr_t;





__extension__ typedef long long __pthread_cond_align_t;




typedef struct
{
  struct _pthread_fastlock __c_lock;
  _pthread_descr __c_waiting;
  char __padding[48 - sizeof (struct _pthread_fastlock)
                 - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
  __pthread_cond_align_t __align;
} pthread_cond_t;



typedef struct
{
  int __dummy;
} pthread_condattr_t;


typedef unsigned int pthread_key_t;





typedef struct
{
  int __m_reserved;
  int __m_count;
  _pthread_descr __m_owner;
  int __m_kind;
  struct _pthread_fastlock __m_lock;
} pthread_mutex_t;



typedef struct
{
  int __mutexkind;
} pthread_mutexattr_t;



typedef int pthread_once_t;




typedef struct _pthread_rwlock_t
{
  struct _pthread_fastlock __rw_lock;
  int __rw_readers;
  _pthread_descr __rw_writer;
  _pthread_descr __rw_read_waiting;
  _pthread_descr __rw_write_waiting;
  int __rw_kind;
  int __rw_pshared;
} pthread_rwlock_t;



typedef struct
{
  int __lockkind;
  int __pshared;
} pthread_rwlockattr_t;




typedef volatile int pthread_spinlock_t;


typedef struct {
  struct _pthread_fastlock __ba_lock;
  int __ba_required;
  int __ba_present;
  _pthread_descr __ba_waiting;
} pthread_barrier_t;


typedef struct {
  int __pshared;
} pthread_barrierattr_t;





typedef unsigned long int pthread_t;
# 267 "/usr/include/sys/types.h" 2 3 4
# 417 "/usr/include/stdlib.h" 2 3 4






extern long int random (void) ;


extern void srandom (unsigned int __seed) ;





extern char *initstate (unsigned int __seed, char *__statebuf,
                        size_t __statelen) ;



extern char *setstate (char *__statebuf) ;







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) ;

extern int srandom_r (unsigned int __seed, struct random_data *__buf) ;

extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
                        size_t __statelen,
                        struct random_data *__restrict __buf) ;

extern int setstate_r (char *__restrict __statebuf,
                       struct random_data *__restrict __buf) ;






extern int rand (void) ;

extern void srand (unsigned int __seed) ;




extern int rand_r (unsigned int *__seed) ;







extern double drand48 (void) ;
extern double erand48 (unsigned short int __xsubi[3]) ;


extern long int lrand48 (void) ;
extern long int nrand48 (unsigned short int __xsubi[3]) ;


extern long int mrand48 (void) ;
extern long int jrand48 (unsigned short int __xsubi[3]) ;


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





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


extern int drand48_r (struct drand48_data *__restrict __buffer,
                      double *__restrict __result) ;
extern int erand48_r (unsigned short int __xsubi[3],
                      struct drand48_data *__restrict __buffer,
                      double *__restrict __result) ;


extern int lrand48_r (struct drand48_data *__restrict __buffer,
                      long int *__restrict __result) ;
extern int nrand48_r (unsigned short int __xsubi[3],
                      struct drand48_data *__restrict __buffer,
                      long int *__restrict __result) ;


extern int mrand48_r (struct drand48_data *__restrict __buffer,
                      long int *__restrict __result) ;
extern int jrand48_r (unsigned short int __xsubi[3],
                      struct drand48_data *__restrict __buffer,
                      long int *__restrict __result) ;


extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
     ;

extern int seed48_r (unsigned short int __seed16v[3],
                     struct drand48_data *__buffer) ;

extern int lcong48_r (unsigned short int __param[7],
                      struct drand48_data *__buffer) ;
# 564 "/usr/include/stdlib.h" 3 4



extern void *realloc (void *__ptr, size_t __size) __attribute__ ((__malloc__));

extern void free (void *__ptr) ;




extern void cfree (void *__ptr) ;



# 1 "/usr/include/alloca.h" 1 3 4
# 25 "/usr/include/alloca.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 26 "/usr/include/alloca.h" 2 3 4







extern void *alloca (size_t __size) ;
# 579 "/usr/include/stdlib.h" 2 3 4




extern void *valloc (size_t __size) __attribute__ ((__malloc__));




extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
     __attribute__ ((__malloc__));




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



extern int atexit (void (*__func) (void)) ;





extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
     ;






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






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






extern char *getenv (__const char *__name) ;




extern char *__secure_getenv (__const char *__name) ;





extern int putenv (char *__string) ;





extern int setenv (__const char *__name, __const char *__value, int __replace)
     ;


extern int unsetenv (__const char *__name) ;






extern int clearenv (void) ;
# 663 "/usr/include/stdlib.h" 3 4
extern char *mktemp (char *__template) ;
# 674 "/usr/include/stdlib.h" 3 4
extern int mkstemp (char *__template);
# 683 "/usr/include/stdlib.h" 3 4
extern int mkstemp64 (char *__template);
# 693 "/usr/include/stdlib.h" 3 4
extern char *mkdtemp (char *__template) ;
# 702 "/usr/include/stdlib.h" 3 4
extern int system (__const char *__command);







extern char *canonicalize_file_name (__const char *__name) ;
# 720 "/usr/include/stdlib.h" 3 4
extern char *realpath (__const char *__restrict __name,
                       char *__restrict __resolved) ;






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


typedef __compar_fn_t comparison_fn_t;






extern void *bsearch (__const void *__key, __const void *__base,
                      size_t __nmemb, size_t __size, __compar_fn_t __compar);



extern void qsort (void *__base, size_t __nmemb, size_t __size,
                   __compar_fn_t __compar);



extern int abs (int __x) __attribute__ ((__const__));
extern long int labs (long int __x) __attribute__ ((__const__));



__extension__ extern long long int llabs (long long int __x)
     __attribute__ ((__const__));







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




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




extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt,
                   int *__restrict __sign) ;




extern char *gcvt (double __value, int __ndigit, char *__buf) ;




extern char *qecvt (long double __value, int __ndigit,
                    int *__restrict __decpt, int *__restrict __sign) ;
extern char *qfcvt (long double __value, int __ndigit,
                    int *__restrict __decpt, int *__restrict __sign) ;
extern char *qgcvt (long double __value, int __ndigit, char *__buf) ;




extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt,
                   int *__restrict __sign, char *__restrict __buf,
                   size_t __len) ;
extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt,
                   int *__restrict __sign, char *__restrict __buf,
                   size_t __len) ;

extern int qecvt_r (long double __value, int __ndigit,
                    int *__restrict __decpt, int *__restrict __sign,
                    char *__restrict __buf, size_t __len) ;
extern int qfcvt_r (long double __value, int __ndigit,
                    int *__restrict __decpt, int *__restrict __sign,
                    char *__restrict __buf, size_t __len) ;







extern int mblen (__const char *__s, size_t __n) ;


extern int mbtowc (wchar_t *__restrict __pwc,
                   __const char *__restrict __s, size_t __n) ;


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



extern size_t mbstowcs (wchar_t *__restrict __pwcs,
                        __const char *__restrict __s, size_t __n) ;

extern size_t wcstombs (char *__restrict __s,
                        __const wchar_t *__restrict __pwcs, size_t __n)
     ;
# 855 "/usr/include/stdlib.h" 3 4
extern int rpmatch (__const char *__response) ;
# 866 "/usr/include/stdlib.h" 3 4
extern int getsubopt (char **__restrict __optionp,
                      char *__const *__restrict __tokens,
                      char **__restrict __valuep) ;





extern void setkey (__const char *__key) ;







extern int posix_openpt (int __oflag);







extern int grantpt (int __fd) ;



extern int unlockpt (int __fd) ;




extern char *ptsname (int __fd) ;






extern int ptsname_r (int __fd, char *__buf, size_t __buflen) ;


extern int getpt (void);






extern int getloadavg (double __loadavg[], int __nelem) ;
# 20 "wall.c" 2
# 1 "/usr/include/unistd.h" 1 3 4
# 28 "/usr/include/unistd.h" 3 4
# 171 "/usr/include/unistd.h" 3 4
# 1 "/usr/include/bits/posix_opt.h" 1 3 4
# 172 "/usr/include/unistd.h" 2 3 4



# 1 "/usr/include/bits/environments.h" 1 3 4
# 23 "/usr/include/bits/environments.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 24 "/usr/include/bits/environments.h" 2 3 4
# 176 "/usr/include/unistd.h" 2 3 4
# 195 "/usr/include/unistd.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 196 "/usr/include/unistd.h" 2 3 4
# 236 "/usr/include/unistd.h" 3 4
typedef __intptr_t intptr_t;






typedef __socklen_t socklen_t;
# 256 "/usr/include/unistd.h" 3 4
extern int access (__const char *__name, int __type) ;




extern int euidaccess (__const char *__name, int __type) ;
# 286 "/usr/include/unistd.h" 3 4
extern __off_t lseek (int __fd, __off_t __offset, int __whence) ;
# 298 "/usr/include/unistd.h" 3 4
extern __off64_t lseek64 (int __fd, __off64_t __offset, int __whence) ;






extern int close (int __fd);






extern ssize_t read (int __fd, void *__buf, size_t __nbytes);





extern ssize_t write (int __fd, __const void *__buf, size_t __n);
# 328 "/usr/include/unistd.h" 3 4
extern ssize_t pread (int __fd, void *__buf, size_t __nbytes,
                      __off_t __offset);






extern ssize_t pwrite (int __fd, __const void *__buf, size_t __n,
                       __off_t __offset);
# 356 "/usr/include/unistd.h" 3 4
extern ssize_t pread64 (int __fd, void *__buf, size_t __nbytes,
                        __off64_t __offset);


extern ssize_t pwrite64 (int __fd, __const void *__buf, size_t __n,
                         __off64_t __offset);







extern int pipe (int __pipedes[2]) ;
# 378 "/usr/include/unistd.h" 3 4
extern unsigned int alarm (unsigned int __seconds) ;
# 390 "/usr/include/unistd.h" 3 4
extern unsigned int sleep (unsigned int __seconds);






extern __useconds_t ualarm (__useconds_t __value, __useconds_t __interval)
     ;






extern int usleep (__useconds_t __useconds);
# 414 "/usr/include/unistd.h" 3 4
extern int pause (void);



extern int chown (__const char *__file, __uid_t __owner, __gid_t __group)
     ;



extern int fchown (int __fd, __uid_t __owner, __gid_t __group) ;




extern int lchown (__const char *__file, __uid_t __owner, __gid_t __group)
     ;




extern int chdir (__const char *__path) ;



extern int fchdir (int __fd) ;
# 448 "/usr/include/unistd.h" 3 4
extern char *getcwd (char *__buf, size_t __size) ;





extern char *get_current_dir_name (void) ;






extern char *getwd (char *__buf) ;




extern int dup (int __fd) ;


extern int dup2 (int __fd, int __fd2) ;


extern char **__environ;

extern char **environ;





extern int execve (__const char *__path, char *__const __argv[],
                   char *__const __envp[]) ;




extern int fexecve (int __fd, char *__const __argv[], char *__const __envp[])
     ;




extern int execv (__const char *__path, char *__const __argv[]) ;



extern int execle (__const char *__path, __const char *__arg, ...) ;



extern int execl (__const char *__path, __const char *__arg, ...) ;



extern int execvp (__const char *__file, char *__const __argv[]) ;




extern int execlp (__const char *__file, __const char *__arg, ...) ;




extern int nice (int __inc) ;




extern void _exit (int __status) __attribute__ ((__noreturn__));





# 1 "/usr/include/bits/confname.h" 1 3 4
# 25 "/usr/include/bits/confname.h" 3 4
enum
  {
    _PC_LINK_MAX,

    _PC_MAX_CANON,

    _PC_MAX_INPUT,

    _PC_NAME_MAX,

    _PC_PATH_MAX,

    _PC_PIPE_BUF,

    _PC_CHOWN_RESTRICTED,

    _PC_NO_TRUNC,

    _PC_VDISABLE,

    _PC_SYNC_IO,

    _PC_ASYNC_IO,

    _PC_PRIO_IO,

    _PC_SOCK_MAXBUF,

    _PC_FILESIZEBITS,

    _PC_REC_INCR_XFER_SIZE,

    _PC_REC_MAX_XFER_SIZE,

    _PC_REC_MIN_XFER_SIZE,

    _PC_REC_XFER_ALIGN,

    _PC_ALLOC_SIZE_MIN,

    _PC_SYMLINK_MAX,

    _PC_2_SYMLINKS

  };


enum
  {
    _SC_ARG_MAX,

    _SC_CHILD_MAX,

    _SC_CLK_TCK,

    _SC_NGROUPS_MAX,

    _SC_OPEN_MAX,

    _SC_STREAM_MAX,

    _SC_TZNAME_MAX,

    _SC_JOB_CONTROL,

    _SC_SAVED_IDS,

    _SC_REALTIME_SIGNALS,

    _SC_PRIORITY_SCHEDULING,

    _SC_TIMERS,

    _SC_ASYNCHRONOUS_IO,

    _SC_PRIORITIZED_IO,

    _SC_SYNCHRONIZED_IO,

    _SC_FSYNC,

    _SC_MAPPED_FILES,

    _SC_MEMLOCK,

    _SC_MEMLOCK_RANGE,

    _SC_MEMORY_PROTECTION,

    _SC_MESSAGE_PASSING,

    _SC_SEMAPHORES,

    _SC_SHARED_MEMORY_OBJECTS,

    _SC_AIO_LISTIO_MAX,

    _SC_AIO_MAX,

    _SC_AIO_PRIO_DELTA_MAX,

    _SC_DELAYTIMER_MAX,

    _SC_MQ_OPEN_MAX,

    _SC_MQ_PRIO_MAX,

    _SC_VERSION,

    _SC_PAGESIZE,


    _SC_RTSIG_MAX,

    _SC_SEM_NSEMS_MAX,

    _SC_SEM_VALUE_MAX,

    _SC_SIGQUEUE_MAX,

    _SC_TIMER_MAX,




    _SC_BC_BASE_MAX,

    _SC_BC_DIM_MAX,

    _SC_BC_SCALE_MAX,

    _SC_BC_STRING_MAX,

    _SC_COLL_WEIGHTS_MAX,

    _SC_EQUIV_CLASS_MAX,

    _SC_EXPR_NEST_MAX,

    _SC_LINE_MAX,

    _SC_RE_DUP_MAX,

    _SC_CHARCLASS_NAME_MAX,


    _SC_2_VERSION,

    _SC_2_C_BIND,

    _SC_2_C_DEV,

    _SC_2_FORT_DEV,

    _SC_2_FORT_RUN,

    _SC_2_SW_DEV,

    _SC_2_LOCALEDEF,


    _SC_PII,

    _SC_PII_XTI,

    _SC_PII_SOCKET,

    _SC_PII_INTERNET,

    _SC_PII_OSI,

    _SC_POLL,

    _SC_SELECT,

    _SC_UIO_MAXIOV,

    _SC_IOV_MAX = _SC_UIO_MAXIOV,

    _SC_PII_INTERNET_STREAM,

    _SC_PII_INTERNET_DGRAM,

    _SC_PII_OSI_COTS,

    _SC_PII_OSI_CLTS,

    _SC_PII_OSI_M,

    _SC_T_IOV_MAX,



    _SC_THREADS,

    _SC_THREAD_SAFE_FUNCTIONS,

    _SC_GETGR_R_SIZE_MAX,

    _SC_GETPW_R_SIZE_MAX,

    _SC_LOGIN_NAME_MAX,

    _SC_TTY_NAME_MAX,

    _SC_THREAD_DESTRUCTOR_ITERATIONS,

    _SC_THREAD_KEYS_MAX,

    _SC_THREAD_STACK_MIN,

    _SC_THREAD_THREADS_MAX,

    _SC_THREAD_ATTR_STACKADDR,

    _SC_THREAD_ATTR_STACKSIZE,

    _SC_THREAD_PRIORITY_SCHEDULING,

    _SC_THREAD_PRIO_INHERIT,

    _SC_THREAD_PRIO_PROTECT,

    _SC_THREAD_PROCESS_SHARED,


    _SC_NPROCESSORS_CONF,

    _SC_NPROCESSORS_ONLN,

    _SC_PHYS_PAGES,

    _SC_AVPHYS_PAGES,

    _SC_ATEXIT_MAX,

    _SC_PASS_MAX,


    _SC_XOPEN_VERSION,

    _SC_XOPEN_XCU_VERSION,

    _SC_XOPEN_UNIX,

    _SC_XOPEN_CRYPT,

    _SC_XOPEN_ENH_I18N,

    _SC_XOPEN_SHM,


    _SC_2_CHAR_TERM,

    _SC_2_C_VERSION,

    _SC_2_UPE,


    _SC_XOPEN_XPG2,

    _SC_XOPEN_XPG3,

    _SC_XOPEN_XPG4,


    _SC_CHAR_BIT,

    _SC_CHAR_MAX,

    _SC_CHAR_MIN,

    _SC_INT_MAX,

    _SC_INT_MIN,

    _SC_LONG_BIT,

    _SC_WORD_BIT,

    _SC_MB_LEN_MAX,

    _SC_NZERO,

    _SC_SSIZE_MAX,

    _SC_SCHAR_MAX,

    _SC_SCHAR_MIN,

    _SC_SHRT_MAX,

    _SC_SHRT_MIN,

    _SC_UCHAR_MAX,

    _SC_UINT_MAX,

    _SC_ULONG_MAX,

    _SC_USHRT_MAX,


    _SC_NL_ARGMAX,

    _SC_NL_LANGMAX,

    _SC_NL_MSGMAX,

    _SC_NL_NMAX,

    _SC_NL_SETMAX,

    _SC_NL_TEXTMAX,


    _SC_XBS5_ILP32_OFF32,

    _SC_XBS5_ILP32_OFFBIG,

    _SC_XBS5_LP64_OFF64,

    _SC_XBS5_LPBIG_OFFBIG,


    _SC_XOPEN_LEGACY,

    _SC_XOPEN_REALTIME,

    _SC_XOPEN_REALTIME_THREADS,


    _SC_ADVISORY_INFO,

    _SC_BARRIERS,

    _SC_BASE,

    _SC_C_LANG_SUPPORT,

    _SC_C_LANG_SUPPORT_R,

    _SC_CLOCK_SELECTION,

    _SC_CPUTIME,

    _SC_THREAD_CPUTIME,

    _SC_DEVICE_IO,

    _SC_DEVICE_SPECIFIC,

    _SC_DEVICE_SPECIFIC_R,

    _SC_FD_MGMT,

    _SC_FIFO,

    _SC_PIPE,

    _SC_FILE_ATTRIBUTES,

    _SC_FILE_LOCKING,

    _SC_FILE_SYSTEM,

    _SC_MONOTONIC_CLOCK,

    _SC_MULTI_PROCESS,

    _SC_SINGLE_PROCESS,

    _SC_NETWORKING,

    _SC_READER_WRITER_LOCKS,

    _SC_SPIN_LOCKS,

    _SC_REGEXP,

    _SC_REGEX_VERSION,

    _SC_SHELL,

    _SC_SIGNALS,

    _SC_SPAWN,

    _SC_SPORADIC_SERVER,

    _SC_THREAD_SPORADIC_SERVER,

    _SC_SYSTEM_DATABASE,

    _SC_SYSTEM_DATABASE_R,

    _SC_TIMEOUTS,

    _SC_TYPED_MEMORY_OBJECTS,

    _SC_USER_GROUPS,

    _SC_USER_GROUPS_R,

    _SC_2_PBS,

    _SC_2_PBS_ACCOUNTING,

    _SC_2_PBS_LOCATE,

    _SC_2_PBS_MESSAGE,

    _SC_2_PBS_TRACK,

    _SC_SYMLOOP_MAX,

    _SC_STREAMS,

    _SC_2_PBS_CHECKPOINT,


    _SC_V6_ILP32_OFF32,

    _SC_V6_ILP32_OFFBIG,

    _SC_V6_LP64_OFF64,

    _SC_V6_LPBIG_OFFBIG,


    _SC_HOST_NAME_MAX,

    _SC_TRACE,

    _SC_TRACE_EVENT_FILTER,

    _SC_TRACE_INHERIT,

    _SC_TRACE_LOG

  };


enum
  {
    _CS_PATH,


    _CS_V6_WIDTH_RESTRICTED_ENVS,


    _CS_GNU_LIBC_VERSION,

    _CS_GNU_LIBPTHREAD_VERSION,


    _CS_LFS_CFLAGS = 1000,

    _CS_LFS_LDFLAGS,

    _CS_LFS_LIBS,

    _CS_LFS_LINTFLAGS,

    _CS_LFS64_CFLAGS,

    _CS_LFS64_LDFLAGS,

    _CS_LFS64_LIBS,

    _CS_LFS64_LINTFLAGS,


    _CS_XBS5_ILP32_OFF32_CFLAGS = 1100,

    _CS_XBS5_ILP32_OFF32_LDFLAGS,

    _CS_XBS5_ILP32_OFF32_LIBS,

    _CS_XBS5_ILP32_OFF32_LINTFLAGS,

    _CS_XBS5_ILP32_OFFBIG_CFLAGS,

    _CS_XBS5_ILP32_OFFBIG_LDFLAGS,

    _CS_XBS5_ILP32_OFFBIG_LIBS,

    _CS_XBS5_ILP32_OFFBIG_LINTFLAGS,

    _CS_XBS5_LP64_OFF64_CFLAGS,

    _CS_XBS5_LP64_OFF64_LDFLAGS,

    _CS_XBS5_LP64_OFF64_LIBS,

    _CS_XBS5_LP64_OFF64_LINTFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_CFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_LDFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_LIBS,

    _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,


    _CS_POSIX_V6_ILP32_OFF32_CFLAGS,

    _CS_POSIX_V6_ILP32_OFF32_LDFLAGS,

    _CS_POSIX_V6_ILP32_OFF32_LIBS,

    _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_LIBS,

    _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS,

    _CS_POSIX_V6_LP64_OFF64_CFLAGS,

    _CS_POSIX_V6_LP64_OFF64_LDFLAGS,

    _CS_POSIX_V6_LP64_OFF64_LIBS,

    _CS_POSIX_V6_LP64_OFF64_LINTFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS

  };
# 526 "/usr/include/unistd.h" 2 3 4


extern long int pathconf (__const char *__path, int __name) ;


extern long int fpathconf (int __fd, int __name) ;


extern long int sysconf (int __name) __attribute__ ((__const__));



extern size_t confstr (int __name, char *__buf, size_t __len) ;




extern __pid_t getpid (void) ;


extern __pid_t getppid (void) ;




extern __pid_t getpgrp (void) ;
# 561 "/usr/include/unistd.h" 3 4
extern __pid_t __getpgid (__pid_t __pid) ;

extern __pid_t getpgid (__pid_t __pid) ;






extern int setpgid (__pid_t __pid, __pid_t __pgid) ;
# 587 "/usr/include/unistd.h" 3 4
extern int setpgrp (void) ;
# 605 "/usr/include/unistd.h" 3 4
extern __pid_t setsid (void) ;



extern __pid_t getsid (__pid_t __pid) ;



extern __uid_t getuid (void) ;


extern __uid_t geteuid (void) ;


extern __gid_t getgid (void) ;


extern __gid_t getegid (void) ;




extern int getgroups (int __size, __gid_t __list[]) ;



extern int group_member (__gid_t __gid) ;






extern int setuid (__uid_t __uid) ;




extern int setreuid (__uid_t __ruid, __uid_t __euid) ;




extern int seteuid (__uid_t __uid) ;






extern int setgid (__gid_t __gid) ;




extern int setregid (__gid_t __rgid, __gid_t __egid) ;




extern int setegid (__gid_t __gid) ;





extern int getresuid (__uid_t *__euid, __uid_t *__ruid, __uid_t *__suid);



extern int getresgid (__gid_t *__egid, __gid_t *__rgid, __gid_t *__sgid);



extern int setresuid (__uid_t __euid, __uid_t __ruid, __uid_t __suid);



extern int setresgid (__gid_t __egid, __gid_t __rgid, __gid_t __sgid);






extern __pid_t fork (void) ;






extern __pid_t vfork (void) ;





extern char *ttyname (int __fd) ;



extern int ttyname_r (int __fd, char *__buf, size_t __buflen) ;



extern int isatty (int __fd) ;





extern int ttyslot (void) ;




extern int link (__const char *__from, __const char *__to) ;



extern int symlink (__const char *__from, __const char *__to) ;




extern int readlink (__const char *__restrict __path, char *__restrict __buf,
                     size_t __len) ;



extern int unlink (__const char *__name) ;


extern int rmdir (__const char *__path) ;



extern __pid_t tcgetpgrp (int __fd) ;


extern int tcsetpgrp (int __fd, __pid_t __pgrp_id) ;






extern char *getlogin (void);







extern int getlogin_r (char *__name, size_t __name_len);




extern int setlogin (__const char *__name) ;
# 775 "/usr/include/unistd.h" 3 4
# 1 "/usr/include/getopt.h" 1 3 4
# 55 "/usr/include/getopt.h" 3 4
extern char *optarg;
# 69 "/usr/include/getopt.h" 3 4
extern int optind;




extern int opterr;



extern int optopt;
# 153 "/usr/include/getopt.h" 3 4
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
       ;
# 776 "/usr/include/unistd.h" 2 3 4







extern int gethostname (char *__name, size_t __len) ;






extern int sethostname (__const char *__name, size_t __len) ;



extern int sethostid (long int __id) ;





extern int getdomainname (char *__name, size_t __len) ;
extern int setdomainname (__const char *__name, size_t __len) ;





extern int vhangup (void) ;


extern int revoke (__const char *__file) ;







extern int profil (unsigned short int *__sample_buffer, size_t __size,
                   size_t __offset, unsigned int __scale) ;





extern int acct (__const char *__name) ;



extern char *getusershell (void) ;
extern void endusershell (void) ;
extern void setusershell (void) ;





extern int daemon (int __nochdir, int __noclose) ;






extern int chroot (__const char *__path) ;



extern char *getpass (__const char *__prompt);
# 857 "/usr/include/unistd.h" 3 4
extern int fsync (int __fd);






extern long int gethostid (void);


extern void sync (void) ;




extern int getpagesize (void) __attribute__ ((__const__));




extern int truncate (__const char *__file, __off_t __length) ;
# 888 "/usr/include/unistd.h" 3 4
extern int truncate64 (__const char *__file, __off64_t __length) ;




extern int ftruncate (int __fd, __off_t __length) ;
# 903 "/usr/include/unistd.h" 3 4
extern int ftruncate64 (int __fd, __off64_t __length) ;





extern int getdtablesize (void) ;
# 918 "/usr/include/unistd.h" 3 4
extern int brk (void *__addr) ;





extern void *sbrk (intptr_t __delta) ;
# 939 "/usr/include/unistd.h" 3 4
extern long int syscall (long int __sysno, ...) ;
# 962 "/usr/include/unistd.h" 3 4
extern int lockf (int __fd, int __cmd, __off_t __len);
# 972 "/usr/include/unistd.h" 3 4
extern int lockf64 (int __fd, int __cmd, __off64_t __len);
# 993 "/usr/include/unistd.h" 3 4
extern int fdatasync (int __fildes) ;







extern char *crypt (__const char *__key, __const char *__salt) ;



extern void encrypt (char *__block, int __edflag) ;






extern void swab (__const void *__restrict __from, void *__restrict __to,
                  ssize_t __n) ;







extern char *ctermid (char *__s) ;
# 21 "wall.c" 2
# 1 "/usr/include/pwd.h" 1 3 4
# 28 "/usr/include/pwd.h" 3 4





# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stddef.h" 1 3 4
# 34 "/usr/include/pwd.h" 2 3 4
# 50 "/usr/include/pwd.h" 3 4
struct passwd
{
  char *pw_name;
  char *pw_passwd;
  __uid_t pw_uid;
  __gid_t pw_gid;
  char *pw_gecos;
  char *pw_dir;
  char *pw_shell;
};
# 73 "/usr/include/pwd.h" 3 4
extern void setpwent (void);





extern void endpwent (void);





extern struct passwd *getpwent (void);
# 95 "/usr/include/pwd.h" 3 4
extern struct passwd *fgetpwent (FILE *__stream);







extern int putpwent (__const struct passwd *__restrict __p,
                     FILE *__restrict __f);






extern struct passwd *getpwuid (__uid_t __uid);





extern struct passwd *getpwnam (__const char *__name);
# 140 "/usr/include/pwd.h" 3 4
extern int getpwent_r (struct passwd *__restrict __resultbuf,
                       char *__restrict __buffer, size_t __buflen,
                       struct passwd **__restrict __result);


extern int getpwuid_r (__uid_t __uid,
                       struct passwd *__restrict __resultbuf,
                       char *__restrict __buffer, size_t __buflen,
                       struct passwd **__restrict __result);

extern int getpwnam_r (__const char *__restrict __name,
                       struct passwd *__restrict __resultbuf,
                       char *__restrict __buffer, size_t __buflen,
                       struct passwd **__restrict __result);
# 164 "/usr/include/pwd.h" 3 4
extern int fgetpwent_r (FILE *__restrict __stream,
                        struct passwd *__restrict __resultbuf,
                        char *__restrict __buffer, size_t __buflen,
                        struct passwd **__restrict __result);
# 181 "/usr/include/pwd.h" 3 4
extern int getpw (__uid_t __uid, char *__buffer);
# 22 "wall.c" 2
# 1 "/usr/include/syslog.h" 1 3 4
# 1 "/usr/include/sys/syslog.h" 1 3 4
# 37 "/usr/include/sys/syslog.h" 3 4
# 1 "/usr/lib/gcc-lib/i386-pc-linux-gnu/3.3.2/include/stdarg.h" 1 3 4
# 38 "/usr/include/sys/syslog.h" 2 3 4
# 169 "/usr/include/sys/syslog.h" 3 4






extern void closelog (void);





extern void openlog (__const char *__ident, int __option, int __facility);


extern int setlogmask (int __mask) ;





extern void syslog (int __pri, __const char *__fmt, ...)
     __attribute__ ((__format__(__printf__, 2, 3)));
# 200 "/usr/include/sys/syslog.h" 3 4
extern void vsyslog (int __pri, __const char *__fmt, __gnuc_va_list __ap)
     __attribute__ ((__format__(__printf__, 2, 0)));
# 2 "/usr/include/syslog.h" 2 3 4
# 23 "wall.c" 2


char *Version = "@(#) wall 2.79 12-Sep-2000 miquels@cistron.nl";



extern void wall(char *, int, int);

int main(int argc, char **argv)
{
  char buf[4096];
  char line[83];
  int i, f, ch;
  int len = 0;
  int remote = 0;
  char *p;
  char *whoami;
  struct passwd *pwd;

  buf[0] = 0;
  if ((pwd = getpwuid(getuid())) == ((void *)0)) {
        if (getuid() == 0)
                whoami = "root";
        else {
                fprintf(stderr, "You don't exist. Go away.\n");
                exit(1);
        }
  } else
        whoami = pwd->pw_name;

  while((ch = getopt(argc, argv, "n")) != (-1))
        switch(ch) {
                case 'n':





                        if (geteuid() != 0 && getgid() != getegid()) {
                                fprintf(stderr, "wall -n: not priviliged\n");
                                exit(1);
                        }
                        remote = 1;
                        break;
                default:
                        fprintf(stderr, "usage: wall [message]\n");
                        return 1;
                        break;
        }

  if ((argc - optind) > 0) {
        for(f = optind; f < argc; f++) {
                len += strlen(argv[f]) + 1;
                if (len >= 4096 -2) break;
                strcat(buf, argv[f]);
                if (f < argc-1) strcat(buf, " ");
        }
        strcat(buf, "\r\n");
  } else {
        while(fgets(line, 80, stdin)) {



                for(p = line; *p && *p != '\r' && *p != '\n'; p++)
                        ;
                strcpy(p, "\r\n");
                len += strlen(line);
                if (len >= 4096) break;
                strcat(buf, line);
        }
  }

  i = 0;
  for (p = buf; *p; p++) {
        if (*p == '\n' && i++ > 20) {
                *++p = 0;
                break;
        }
  }

  openlog("wall", 0x01, (1<<3));
  syslog(6, "wall: user %s broadcasted %d lines (%d chars)",
        whoami, i, strlen(buf));
  closelog();

  unsetenv("TZ");
  wall(buf, 0, remote);


  return 0;
}