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