static void Main(string[] args)
{
Console.WriteLine("VVEDIT COORDYNATY (Ax, Ay, Bx, By) : ");
double Ax = Convert.ToDouble(Console.ReadLine());
double Ay = Convert.ToDouble(Console.ReadLine());
double Bx = Convert.ToDouble(Console.ReadLine());
double By = Convert.ToDouble(Console.ReadLine());
Rectangle rectangle = new Rectangle(Ax, Ay, Bx, By);
Console.WriteLine(rectangle.CalcP());
Console.WriteLine(rectangle.CalcS());
rectangle.CalcP();
rectangle.CalcS();
Console.ReadLine();
}