#include <bits/stdc++.h>
using namespace std;
int main(){
    int z;
    cin>>z;
    if(z%4==0&&z%100!=0||z%400==0){
        cout<<"yes";
    }else cout<<"no";
}
/**************************************************************
	Problem: 1646
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:22 ms
	Memory:2072 kb
****************************************************************/