static void Main(string[] args)
{
Console.WriteLine("<Decorating an Expresso>");
Beverage expresso = new Expresso();
Console.WriteLine($"What: {expresso.getDescription(),-40} How Much: ${expresso.cost():F2}");
expresso = new Cocoa(expresso);
Console.WriteLine($"What: {expresso.getDescription(),-40} How Much: ${expresso.cost():F2}");
expresso = new Milk(expresso);
Console.WriteLine($"What: {expresso.getDescription(),-40} How Much: ${expresso.cost():F2}");
Console.WriteLine("<Tasty!>");
}