#include <bits/stdc++.h>
using namespace std;

int main() {
  int n
  cin>>n;
  int a=N&10;
  if(a == 3){
    cout<<"bon"<<endl;
  }
  else if(a == 0 || a==1 || a==6|| a==8){
    cout<<"pon"<<endl;
  }
  else{
    cout<<"hon"<<endl;
  }
  
}
