#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; if(a==1){ cout<<"NO"; }else if(a==2){ cout<<"YES"; }else if(a==3){ cout<<"NO"; }else if(a==4){ cout<<"YES"; }else if(a==5){ cout<<"NO"; }else if(a>=6){ cout<<"YES"; } return 0; }