#include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a; cin>>a; switch(a){ case 1: cout<<"NO"; break; case 2: cout<<"YES"; break; case 3: cout<<"NO"; break; case 4 : cout<<"YES"; break; case 5: cout<<"NO"; break; case 6: cout<<"YES"; break; default: cout<<"YES"; break; } return 0; }