import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    N %= 10;
    int[] a = {2,4,5,7,9};
    int[] b = {0,1,6,8};
    int[] c = {3};
    for (int x:a) {
      if (N == x) System.out.println("hon");
    }
    for (int x:b) {
      if (N == x) System.out.println("pon");
    }
    for (int x:c) {
      if (N == x) System.out.println("bon");
    }
  }
}
/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