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

namespace KirillLesson2
{
    class Program
    {
        static void Main(string[] args)
        {
            Point p1 = new Point();
            p1.X = 0;
            p1.Y = 0;


            Point p2 = new Point();
            p1.X = 2;
            p1.Y = 2;

            Rectangle rectangle = new Rectangle();
            rectangle.p1 = p1;
            rectangle.p2 = p2;

            Console.WriteLine(rectangle.Square());
        }
    }

    class Rectangle
    {
        public Point p1;
        public Point p2;

        public int Square()
        {
            return Math.Abs((p1.X - p2.X) * (p1.Y - p2.Y));
        }

        public bool Intersects(Rectangle other)
        {
            // проперка пересечения
            // TODO
            //
            return false;
        }

        public bool Contains(Rectangle other)
        {
            // содержит ли
            // TODO
            //
            return false;
        }

        // Периметр
        // TODO
        //
    }

    class Point
    {
        public int X;
        public int Y;
    }
}