#include <stdio.h>
int py_mod(int a, int b)
{
if (a < 0)
if (b < 0)
return -(-a % -b);
else
return -a % b - (-a % -b != 0 ? 1 : 0);
else if (b < 0)
return -(a % -b) + (-a % -b != 0 ? 1 : 0);
else
return a % b;
}
int main(void) {
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CmludCBweV9tb2QoaW50IGEsIGludCBiKQp7CiAgaWYgKGEgPCAwKQogICAgaWYgKGIgPCAwKQogICAgICByZXR1cm4gLSgtYSAlIC1iKTsKICAgIGVsc2UKICAgICAgcmV0dXJuIC1hICUgYiAtICgtYSAlIC1iICE9IDAgPyAxIDogMCk7CiAgZWxzZSBpZiAoYiA8IDApCiAgICAgIHJldHVybiAtKGEgJSAtYikgKyAoLWEgJSAtYiAhPSAwID8gMSA6IDApOwogICAgZWxzZQogICAgICByZXR1cm4gYSAlIGI7Cn0KaW50IG1haW4odm9pZCkgewoJcHJpbnRmKCIlZCIsIHB5X21vZCgxMCwgLTQpKTsKCXJldHVybiAwOwp9Cg==