#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
 
#include<bits/stdc++.h>
using namespace std;

int main(){
  int n;
  cin>>n;
  
  if(n%2==0) cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
  
  
  
  
  
  return 0;
}