#include <bits/stdc++.h>
using namespace std;
const long long INF = 1000000000;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n;
  cin >> n;
  n %= 10;
  if (n == 3) {
    cout << "bon"
         << "\n";
  } else if (n == 0 && n == 1 && n == 6 && n == 8) {
    cout << "pon"
         << "\n";
  } else {
    cout << "hon"
         << "\n";
  }
}
