#include <stdio.h>
int main(void) {
int m,i,k;
k=m-1;
for(i=2;i<m;i++)
{
if(m/i==0)break;
if(i=k)
else
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CglpbnQgbSxpLGs7CiAgICBzY2FuZigiJWQiLCZtKTsKICAgIGs9bS0xOwogICAgZm9yKGk9MjtpPG07aSsrKQp7CiAgICBpZihtL2k9PTApYnJlYWs7CiAgICBpZihpPWspCiAgICBwcmludGYoIiVkIGlzXG4iLG0pOwogICAgZWxzZQogICAgcHJpbnRmKCIlZCBpcyBub3RcbiIsbSk7Cn0KCXJldHVybiAwOwp9Cg==