import java.util.Scanner;
 
public class Main {
 
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
 		String tmp = ""+N;
     	int howlong = tmp.length();
      	String a = tmp.substring(howlong-1);
      	int n = Integer.parseInt(a);
      	String pon ="pon";
      	
      	if(n==2 || n==4 || n==5 || n==7 || n==9){
          pon = "hon";
        } else if (n==3){
          pon = "bon";
        }
      
		System.out.println(pon);
	}
 
}
/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