#include <bits/stdc++.h> using namespace std; int main() { /** int y,m; cin>>y>>m; if(m==2){ if(y%400==0||(y%100!=0 and y %4==0)){ cout<<29; }else{ cout<<28; } }else if(m==4||m==6||m==9||m==11){ cout<<30; }else{ cout<<31; }**/ int a; cin>>a; if(a%2==0){ cout<<"YES"; }else{ cout<<"NO"; } return 0; }