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

int main(){
  int N;
  cin >> N;

  for(int i = 0; i = 20; i++){ 
    if(N >= 100){
      N -= 100;
    }
    if(N >= 10 && N < 100){
      N -= 10;
    }
    if(N < 10){
      break;
    }
    
  }

  if(N == 2 || N == 4 || N == 5 || N == 7 || N == 9){
    cout << "hon" << endl;
  }
  if(N == 0 || N == 6 || N == 8){
    cout << "pon" << endl;
  }
  if(N == 3){
    cout << "bon" << endl;
  }
