import java.util.*;
import java.util.List;
import java.util.ArrayList;
import java.math.*;
class Main{
    public static void main(String[]args){
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        int m = N%10;
        switch(m){
            case 2:System.out.println("hon"); break;
            case 4:System.out.println("hon"); break;
            case 5:System.out.println("hon"); break;
            case 7:System.out.println("hon"); break;
            case 9:System.out.println("hon"); break;
            case 0:System.out.println("pon"); break;
            case 1:System.out.println("pon"); break;
            case 6:System.out.println("pon"); break;
            case 8:System.out.println("pon"); break;
            case 3:System.out.println("bon"); break;
        }
    }
}
/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