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

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