#include <bits/stdc++.h>
using namespace std;
template <typename T>
void vout(T x) {
  cout << x << endl;
  exit(0);
}
const int inf = 1e9 + 1;
const long long INF = 1e18 + 1e2;
const int mod = 1e9 + 7;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n;
  cin >> n;
  if (n == 0 || n == 1 || n == 6 || n == 8) {
    cout << "pon";
  } else if (n == 3) {
    cout << "bon";
  } else {
    cout << "hon";
  }
  cout << endl;
  return 0;
}
