#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;

}

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

    return 0;
}