public override Pizza createPizza(string type)
        {
            Pizza pizza = null;

            if (type.Equals("cheese"))
            {
                Console.WriteLine("ChicagoCheesePizza");
                pizza = new ChicagoCheesePizza();
            }
            else if (type.Equals("creek"))
            {
                Console.WriteLine("ChicagoCreekPizza");
                pizza = new ChicagoCreekPizza();
            }
            else if (type.Equals("pepperoni"))
            {
                Console.WriteLine("ChicagoPepperoniPizza");
                pizza = new ChicagoPepperoniPizza();
            }

            return(pizza);
        }