#include<iostream>
using namespace std;
int main(){
  int N;
  cin >> N;
  if( N = 3 ){
    cout << "bon" << endl;
  }else if(( N = 0 || N = 1) || ( N = 6 || N = 8)){
    cout << "pon" << endl;
  }else if((( N = 2 || N = 4) || ( N =5)) || (N = 7 || N =9 )){
    cout << "hon" << endl;
  }
  return 0;
}