#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using p = pair<int, int>;
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
    cout << "hon" << endl;
}
