static void Main(string[] args)
{
IAnimal bat = new Bird(new Predator(new Mammal(new Animal())));
IAnimal dog = new Predator(new Mammal(new Animal()));
IAnimal shark = new Predator(new Fish(new Animal()));
System.Console.WriteLine(bat.Description());
System.Console.WriteLine(dog.Description());
System.Console.WriteLine(shark.Description());
System.Console.ReadLine();
}
