$//$What does this program do$?$

#include

#define SIZE $80$

int mystery$3($const char $*$s$1,$ const char $*$s$2)$; $//$prototype

int main$($void$)\{$

$$ char string$1[$SIZE$]$;

$$ char string$2[$SIZE$]$;

$$ puts$("$Enter two strings: $")$;

$$ scanf$("\%79$s$\%79$s$",$ string$1,$ string$2)$;

$$ printf$("$The result is $\%$d

$",$ mystery$3($string$1,$string$2))$;

$\}$

int mystery$3($const char $*$s$1,$ const char $*$s$2)\{$

$$ int result $=1$;

$$ for $($; $*$s$1!=0$&& $*$s$2!=0$; $++$s$1,++$s$2)\{$

$$ if$(*$s$1!=*$s$2)\{$

$$ result $=0$;

$\}$

$\}$

$$ return result;

$\}$