package com.company;

import java.util.Scanner;

public class Main {


    public static void main(String[] args) {
        Scanner myInput = new Scanner( System.in );
        int n;
        n = myInput.nextInt();
        n %= 10;
        if(n == 3){
            System.out.println("bon");
        }
        else if(n == 0 || n == 1 || n == 6 || n == 8){
            System.out.println("pon");
        }
        else
            System.out.println("hon");


    }
}
