#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    if(n%4==0&&n%100!=0||n%400==0){
        cout<<"yes";
    } else{
        cout<<"no";
    }
}
/**************************************************************
	Problem: 1646
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:13 ms
	Memory:2072 kb
****************************************************************/