import java.io.*;
import java.util.*;
import java.lang.*;

public class Main
{
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt() % 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");
        }
    }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz