import java.util.*;

public class Main{
	public static void main(String[] args) {

		Scanner keyboard = new Scanner(System.in);

		int N = keyboard.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");
		}
		
		keyboard.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