import java.util.*;

public class Main {

    public static void main(String args[]) {

        // 入力
        Scanner sc = new Scanner(System.in);
        String n = sc.next();
        sc.close();

        // 主処理
        int num = Integer.parseInt(String.valueOf(n.charAt(n.length() - 1)));

        String result;
        if (num == 3) {
            result = "bon";
        } else if (num == 0 || num == 1 || num == 6 || num == 8) {
            result = "pon";
        } else {
            result = "hon";
        }

        // 出力
        System.out.println(result);
    }
}

/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