static void Main(string[] args)
{
Rectangle R = new Rectangle(1, 3);
R.SquareCalculation(R.Side1, R.Side2);
Console.Write("Square rectangle: " + R.Square);
R.PerimeterCalculation(R.Side1, R.Side2);
Console.WriteLine();
Console.Write("Perimeter rectangle: " + R.Perimeter);
Console.WriteLine();
Console.WriteLine("**********************************");
Console.Write("Enter x=");
R.Side1 = double.Parse(Console.ReadLine());
Console.Write("Enter y=");
R.Side2 = double.Parse(Console.ReadLine());
R.SquareCalculation(R.Side1, R.Side2);
Console.Write("Square rectangle: " + R.Square);
R.PerimeterCalculation(R.Side1, R.Side2);
Console.WriteLine();
Console.Write("Perimeter rectangle: " + R.Perimeter);
Console.WriteLine();
}
