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
















