03.2D Rectangle Area

using System;

namespace _03._2DRectangleArea
{
    class Program
    {
        static void Main(string[] args)
        {

            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 length = Math.Abs(x1 - x2);
            double width = Math.Abs(y1 - y2);
            double area = length * width;
            double perimeter = 2 * (length + width);

            Console.WriteLine($"{area:F2}");
            Console.WriteLine($"{perimeter:F2}");


        }
    }
}