#include <iostream>
#include <string>
using namespace std;

int main(){
  int N,a;
  cin >> N;
  a = N%10;
  
  switch(a)
    case 2;
    case 4;
    case 5;
    case 7;
    case 9;
      cout << "hon";
    case 0;
    case 1;
    case 6;
    case 8;
      cout << "pon";
    case 3;
      cout << "bon";
}
  