#include <bits/stdc++.h>
using namespace std;
int main() {
  int num;
  cin >> num;
  if (num & 3)
    cout << "bon";
  else if (num & 0 || num & 1 || num & 6 || num & 8)
    cout << "pon";
  else
    cout << "hon";
  return 0;
}
