#include <stdio.h>
int main() {
int x;
if(x%100==0)
else if ((x%4==0)||(x%400==0))
else
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbigpIHsKCWludCB4OwoJc2NhbmYoIiVkIiwmeCk7CglpZih4JTEwMD09MCkKCQlwcmludGYoIuOBhuOCi+OBhuW5tOOBp+OBr+OBquOBhFxuIik7CgllbHNlIGlmICgoeCU0PT0wKXx8KHglNDAwPT0wKSkKCQlwcmludGYoIuOBhuOCi+OBhuW5tFxuIik7CgllbHNlCgkJcHJpbnRmKCLjgYbjgovjgYblubTjgafjga/jgarjgYQiKTsKCXJldHVybiAwOwp9Cg==