static void Main(string[] args)
{
Director director = new Director();
IBuilder b1 = new Builder1();
IBuilder b2 = new Builder2();
director.Construct(b1);
Product p1 = b1.GetResult();
p1.Display();
director.Construct(b2);
Product p2 = b2.GetResult();
p2.Display();
Console.ReadLine();
}