public class Main {

    public static void main(String[] args) {
        int num = new java.util.Scanner(System.in).nextInt();
        System.out.println(HPB(num));
    }

    static public String HPB(int number) {
        // "pon"パターン
        int[] ponNumber = {0, 1, 6, 8};

        // 1の位が3なら"bon"
        if (number % 10 == 3)
            return "bon";

        // 1の位が"pon"パターンに当てはまるか
        for (int ponInt : ponNumber) {
            if (number % 10 == ponInt)
                return "pon";
        }

        // "bon"でも"pon"でもないものは"hon"パターン
        return "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