import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner s=new Scanner(System.in);
        int n=s.nextInt();
        int a=n/10;
        n-=(a*10);
        if(n==3){
            System.out.println("bon");
        }else if(n==0||n==1||n==6||n==8){
            System.out.println("pon");
        }else{
            System.out.println("hon");
        }
    }
}

/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