#include <bits/stdc++.h>
using namespace std;
int main() {
  int N;
  cin >> N;
  N %= 10;
  if (N == 3) {
    cout << "'bon'" << endl;
  } else if (N == 0 || N == 1 || N == 6 || N == 8) {
    cout << "'pon'" << endl;
  } else {
    cout << "'hon'" << endl;
  }
  return 0;
}
