static void Main(string[] args)
        {
            Spider          regular   = new Spider();
            DangerousSpider dangerous = new DangerousSpider();
            DeadlySpider    deadly    = new DeadlySpider();

            regular.SetName("Imbi");
            regular.SetAge(11);
            regular.PrintInfo();
            regular.Eat("flies");
            regular.Bite();

            Console.WriteLine();

            dangerous.SetName("Ohtlik");
            dangerous.SetAge(5);
            dangerous.PrintInfo();
            dangerous.Eat("mosquitoes");
            dangerous.Bite();

            Console.WriteLine();

            deadly.SetName("Death");
            deadly.SetAge(6);
            deadly.PrintInfo();
            deadly.Eat("everything");
            deadly.Bite();
        }