private void Main03()
{
Animal an1 = new Dinosaur(6, 16, "male", 55);
Animal an2 = new Rabbit(2, 6, "female", 25);
Console.WriteLine(an1.Voice());
Console.WriteLine(an2.Voice());
Animal cn1, cn2;
cn1 = an1.Copy();
cn2 = an2.Copy();
Console.WriteLine(cn1);
Console.WriteLine(cn2);
Rabbit bn2 = (Rabbit)an2.Copy();
}