#include <stdio.h>
int main(void) {
int a;
if(a%4==0)
{
}
else if(a%100==0)
{
}
else if(a%400==0)
{
}
else
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CglpbnQgYTsKCXNjYW5mKCIlZCIsJmEpOwoJaWYoYSU0PT0wKQoJewoJCXByaW50ZigiJWTjga/jgYbjgovjgYblubTjgafjgZkiLGEpOwoJfQoJZWxzZSBpZihhJTEwMD09MCkKCXsKCQlwcmludGYoIiVk44Gv44GG44KL44GG5bm044Gn44Gv44Gq44GEIixhKTsKCX0KCWVsc2UgaWYoYSU0MDA9PTApCgl7CgkJcHJpbnRmKCIlZOOBr+OBhuOCi+OBhuW5tOOBp+OBmSIsYSk7CgkKCX0KCWVsc2UKCXByaW50ZigiJWTjga/jgYbjgovjgYblubTjgafjga/jgarjgYQiLGEpOwoJcmV0dXJuIDA7Cn0K