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

