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

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