import java.util.Scanner;

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

        if(n % 10 == 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");
        }

        scan.close();
    }
}
/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