static void Main(string[] args)
{
Burger b1 = new BurgerBuilder(Size.large).AddCheese()
.AddLettuce()
.build();
Burger b2 = new BurgerBuilder(Size.small).build();
Burger b3 = new BurgerBuilder(Size.medium).AddTomato()
.AddLettuce()
.build();
Burger b4 = new Burger(SpecialtyBurgerFactory.makeDeluxeBurger(Size.large));
Burger b5 = new Burger(SpecialtyBurgerFactory.makeKidsCheeseBurger().AddPickles().AddMustard());
Console.WriteLine("Burger1:\n" + b1.ToString());
Console.WriteLine("Burger2:\n" + b2.ToString());
Console.WriteLine("Burger3:\n" + b3.ToString());
Console.WriteLine("Burger4:\n" + b4.ToString());
Console.WriteLine("Burger5:\n" + b5.ToString());
Console.Read();
}