import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n % 10 == 3 || n % 100 == 3) {
            System.out.println("bon");
        }
        else if (n % 10 == 0 || n % 10 == 1 | n % 10 == 6 || n % 10 == 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