#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  int n;
  cin >> n;
  if (n == 3)
    cout << "bon";
  else if (n == 0 || n == 1 || n == 6 || n == 8)
    cout << "pon";
  else
    cout << "hon";
}
