static void Main(string[] args)
{
Director d = new Director();
IBuilder b1 = new ConcreteBuilder1();
d.Construct(b1);
Product p1 = b1.GetResult();
p1.ShowResult();
IBuilder b2 = new ConcreteBuilder2();
d.Construct(b2);
Product p2 = b2.GetResult();
p2.ShowResult();
Console.ReadKey();
}