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

int main() {

  int n;

  cin >> n ;
  n = n % 100;
  n = n % 10;
  
  if(n==0 || n==1 || n==6 || n==8) cout << "pon" ;
  else if(n==3) cout << "bon" ;
  else cout << "hon"
}
