#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"<<endl;
	}else{
		cout<<"no"<<endl;
	}
}
/**************************************************************
	Problem: 1646
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/