static void Main(string[] args)
{
Dog rex = new Dog("Rex");
rex.SayWoof();
rex.Eat();
Cat firstCat = new Cat("Murzik");
firstCat.SayMeow();
firstCat.Eat();
Bird greatBird = new Bird("Eagle");
greatBird.Chirip();
greatBird.Eat();
Console.ReadKey();
}