狗都会

#include<bits/stdc++.h>
using namespace std;
int is_leap(int y){
    if(y%4 == 0 && y%100 != 0 || y%400 == 0){
        return true;
    }else{
        return false;
    }
}
int main() {
    int year;
    cin>>year;
    if(is_leap(year)==true)cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    return 0;
}