#include<bit/stdc++.h>
using namespace std;
int main(){
	int a,b;
	cin>>a;
	b=a%2;
	if(b=0){
		cout<<y e s;
    }else{
    	cout<<n o;
    }
	
}

/**************************************************************
	Problem: 1033
	User: zhengzihao3
	Language: C
	Result: Compile Error
****************************************************************/