public static void Main(string[] args)
{
PizzaBuilder delhiPizzaBuilder = new DelhiCheesePizzaBuilder();
PizzaBuilder mumbaiPizzaBuilder = new MumbaiCheesePizzaBuilder();
Cook cook = new Cook();
cook.PreparePizza(delhiPizzaBuilder);
delhiPizzaBuilder.GetPizza().ShowPizza();
cook.PreparePizza(mumbaiPizzaBuilder);
mumbaiPizzaBuilder.GetPizza().ShowPizza();
}