public static void Composite()
 {
     IShape line = new Line(0, 0, 1, 1);
     Console.WriteLine("Rendering Line");
     line.RenderShape();
     Console.WriteLine("Rendering Rectangle");
     IShape Rectangle = new Rectangle();
     Rectangle.RenderShape();
     IShape complexShape = new ComplexShape();
     ((ComplexShape)complexShape).AddShape(new Line(0, 1, 1, 1));
     ((ComplexShape)complexShape).AddShape(new Line(0, 1, 1, 1));
     ((ComplexShape)complexShape).AddShape(new Line(0, 1, 1, 1));
     ((ComplexShape)complexShape).AddShape(new Line(0, 1, 1, 1));
     ((ComplexShape)complexShape).AddShape(new Line(0, 1, 1, 1));
     Console.WriteLine("Rendering Complex Shape");
     complexShape.RenderShape();
 }