public static void Main(string[] args)
{
int radius = int.Parse(Console.ReadLine());
int width = int.Parse(Console.ReadLine());
int height = int.Parse(Console.ReadLine());
Circle circle = new Circle(radius);
circle.Print();
Rectangle rectangle = new Rectangle(width, height);
rectangle.Print();
}
static void Main(string[] args)
{
List <Shape> shapes = new List <Shape>();
Shape triangle = new Triangle(6, 5);
shapes.Add(triangle);
triangle.Print();
Shape rectangle = new Rectangle(4, 8);
shapes.Add(rectangle);
rectangle.Print();
Shape square = new Square(4);
shapes.Add(square);
square.Print();
}
