RectangleArea

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            // 2D rectangle area; правоъгълна площ
            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 LongSide = Math.Abs(x1 - x2); // a
            double ShortSide =  Math.Abs(y1 - y2); // b

            double S = LongSide * ShortSide;
            double P = 2 * LongSide + 2 * ShortSide;

            Console.WriteLine(S);
            Console.WriteLine(P);
        }
    }
}