static void Main(string[] args)
{
// Circle
Circle shape1 = new Circle("1");
shape1.Print();
Circle shape1_copy = shape1.Clone() as Circle;
shape1_copy.Print();
// Square
Square shape2 = new Square("2");
shape2.Print();
Square shape2_copy = shape2.Clone() as Square;
shape2_copy.Print();
// Rectangle
Rectangle shape3 = new Rectangle("3");
shape3.Print();
Rectangle shape3_copy = shape3.Clone() as Rectangle;
shape3_copy.Print();
Console.WriteLine();
// CacheManager
//ShapeManager shapeManager = new ShapeManager();
//Circle c_circle = new Circle("a1");
//Square c_square = new Square("a2");
//Rectangle c_rectangle = new Rectangle("a3");
//shapeManager["Circle"] = c_circle;
//shapeManager["Square"] = c_square;
//shapeManager["Rectangle"] = c_rectangle;
//Circle cloned_c_circle = shapeManager["Circle"].Clone() as Circle;
//Square cloned_c_square = shapeManager["Square"].Clone() as Square;
//Rectangle cloned_c_rectangle = shapeManager["Rectangle"].Clone() as Rectangle;
//c_circle.Print();
//cloned_c_circle.Print();
//c_square.Print();
//cloned_c_square.Print();
//c_rectangle.Print();
//cloned_c_rectangle.Print();
Console.ReadLine();
}