2D Rectangle Area

using System;
class Program
{
    static void Main()
    {
        double x1 = double.Parse(Console.ReadLine());
            double y1 = double.Parse(Console.ReadLine());
            double x2 = double.Parse(Console.ReadLine());
            double y2 = double.Parse(Console.ReadLine());

            double width = Math.Max(x1, x2) - Math.Min(x1, x2);
            double height = Math.Max(y1, y2) - Math.Min(y1, y2);

            Console.WriteLine("Area = " + width * height);
            Console.WriteLine("Perimeter =" + 2 * (width + height));
    }
}