import java.util.*;
import java.lang.*;
import java.io.*;
public class Main
{
	static String check(int num)
	{
		if(num==3) return "bon";
		else if(num==0 || num==1 || num==6 || num==8) return "pon";
		else return "hon";
	}
	public static void main(String[] args)
	{
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		int num = n%10;
		System.out.println(check(num));
	}
}
/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