using System;
using static System.Console;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;

namespace Atcoder_Answer
{
    class Program
    {
        const Int32 mod = 1000000007;

        static void Main(string[] args)
        {
            int N = int.Parse(ReadLine());

            switch (N) {
                case 2:
                case 4:
                case 5:
                case 7:
                case 9:
                    WriteLine("hon");
                    break;

                case 0:
                case 1:
                case 6:
                case 8:
                    WriteLine("pon");
                    break;

                case 3:
                    WriteLine("bon");
                    break;
            }

            return;
        }

        #region Functions
        public static decimal floor(float d) => Math.Floor((decimal)d);

        public static double nqrt(int n, int value)
        {
            if (n >= 0)
            {
                // 通常のn乗根
                return Math.Pow(n, 1.0 / (double)n);
            }
            else
            {
                if ((n % 2) != 0)
                {
                    // 奇数乗根の場合
                    return -Math.Pow(-n, 1.0 / (double)n);
                }
                else
                {
                    // 偶数乗根の場合
                    return double.NaN;
                }
            }
        }
        #endregion
    }

    public static class Extension
    {
        #region 拡張:bool
        #region キャスト関連
        public static int ToInt(this bool Bool)
        {
            if (Bool) return 1;
            else return 0;
        }

        public static string ToString(this bool Bool, string TrueStr, string FalseStr)
        {
            if (Bool) return TrueStr;
            else return FalseStr;
        }
        #endregion
        #endregion

        #region 拡張:int
        #region キャスト関連
        public static char ToAlphaBets(this int Base) => (char)Base;
        #endregion
        #endregion

        #region 拡張:char
        #region 変換関連
        public static char NextAlpha(this char Char) => (char)((Char) + 1); //次の文字を取得
        #endregion
        #endregion

        #region 拡張:int[]
        public static long Sum(this int[] Array)
        {
            int Ret = 0;
            for (int loop = 0; loop < Array.Length; loop++) Ret += Array[loop];
            return Ret;
        }
        #endregion

        #region 拡張: string
        public static string Multi(this string THIS, int Value)
        {
            string RetValue = "";

            for (int loop = 0; loop < Value; loop++) RetValue += THIS;

            return RetValue;
        }
        #endregion

        #region 拡張: List<string>
        public static string Sum(this List<string> THIS, string Split)
        {
            string RetValue = "";

            for (int loop = 0; loop < THIS.Count; loop++)
            {
                RetValue += THIS[loop];
            }

            return RetValue;
        }
        #endregion
    }
}
