using namespace std;
int main()
{
    int y;
    cin>>y;
    if((y%400 == 0) || (y%4 == 0 && y%100!=0))
    {
        cout<<"yes";
    }
    else
    {
        cout<<"no";
    }
    return 0;
}

#include <iostream>
using namespace std;

int main() {
    int year;
    cin >> year;
    // 判断是否为闰年
    if ((year % 4 == 0 && year % 100!= 0) || (year % 100 == 0 && year % 400 == 0)) {
        cout << "yes";
    } else {
        cout << "no";
    }
    return 0;
}

#include #include using namespace std; int main(){ int a; cin>>a; if(a%40&&a%100!=0){ cout<<"yes"; } else if(a%1000&&a%400==0){ cout<<"yes";

}else{
	cout<<"no";
}

return 0;

}