#include<iostream>
using namespace std;
int main() {
int year;
cin >> year;
if (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0))
cout << "yes" << endl;
else cout << "no" << endl;
return 0;
}
版权声明：本文为weixin_45406276原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。