#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"<<endl;
	}else{
		cout<<"no"<<endl;
	}

	return 0;
}
/**************************************************************
	Problem: 1646
	User: ct001
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/