using System;

​

namespace ViDu2

{

    public class HinhChuNhat

    {

        public static void Main(string[] args)

        {

            int cd, cr, S, CV;

            Console.Write("Nhap chieu dai: " );

            cd = Convert.ToInt32(Console.ReadLine());

            Console.Write("Nhap chieu rong: " );

            cr = Convert.ToInt32(Console.ReadLine());

            S = cd * cr;

            CV = (cd + cr) * 2;

            Console.Write("Chu vi hinh chu nhat la: {0}\n", CV);

            Console.Write("Dien tich hinh chu nhat la: {0}", S);

        }

    }

}