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