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