BeerTime

static void Main()
        {
            string time = Console.ReadLine();
            string[] split = time.Split(':', ' ');
            int hours = int.Parse(split[0]);
            int minutes = int.Parse(split[1]);
            string designator = split[2].ToLower();

            if (hours >= 1 && hours <= 12 && minutes >= 0 && minutes < 60 &&
                (designator == "pm" || designator == "am"))
            {
                if ((designator == "am" && hours <= 2) || (designator == "pm" && hours >= 1))
                {
                    Console.WriteLine("beer time");
                }
                else
                {
                    Console.WriteLine("non-beer time");
                }
            }
            else
            {
                Console.WriteLine("not correct input");
            }
        }