public static void Main()
{
var cat = new Cat
{
Name = "Silvestar",
Age = 50
};
var bunny = new Bunny
{
Name = "Bugs",
Age = 75
};
System.Console.WriteLine(cat.SayHello());
System.Console.WriteLine(bunny.SayHello());
System.Console.WriteLine(bunny.Color);
}