using System;
using System.Globalization;

class BeerTime
{
    static void Main()
    {
        Console.Write("time= "); 
        string inputTime = Console.ReadLine(); //v Homework faila na Softuni
        string format = "hh:mm tt";            //ima greshka v Input-a
                                               // trqbva da e naprimer 01:00 pm,
                                               // a ne 1:00 pm
        DateTime start = DateTime.Parse("01:00 PM");
        DateTime end = DateTime.Parse("03:00 AM");

        DateTime time;
        bool parse = DateTime.TryParseExact(inputTime, format, CultureInfo.InvariantCulture,
            DateTimeStyles.AdjustToUniversal, out time);
        if (parse)
        {
            Console.Write("result = ");
        }
        else
        {
            Console.WriteLine("invalid time");
            return;
        }

        if (time >= end && time < start) 
        {
            Console.WriteLine("non-beer time");
        }
        else
        {
            Console.WriteLine("beer time");
        }
    }
}