import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String[] list = sc.next().split("");

        String x = list[list.length - 1];
        if (x.equals("3"))  System.out.println("bon");
        else if (x.equals("0") || x.equals("1") || x.equals("6") || x.equals("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