static void Main(string[] args)
{
EggRoll p1 = new EggRoll(100, "EggRoll 1");
Cheese cheese = new Cheese(12, "cheese");
Ham ham = new Ham(5, "ham");
Egg egg = new Egg(10, "egg");
Console.WriteLine("Material: ");
ham.Decorate(p1);
cheese.Decorate(ham);
egg.Decorate(cheese);
egg.Calculate();
}