#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a%2==0){
	cout<<"y"<<" "<<"e"<<" "<<"s";
    }
	else{
	cout<<"n"<<" "<<"o";                  
    }
	
	
	
	
	
	
	return 0;
	
	
	
	
	
	}
/**************************************************************
	Problem: 1033
	User: zhangchenhao
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/