import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner scan = new Scanner(System.in);
        int num = scan.nextInt();
        scan.close();

        int num2 = num % 10;

        if (num2 == 3) {
            System.out.println("bon");
        } else if (num2 == 0 || num2 == 1 || num2 == 6 || num2 == 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