#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: toughuatao1
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/