using System;

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public class Program

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{

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public static void Main()

{

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

            int chieudai=Convert.ToInt32(Console.ReadLine());

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

            int chieurong = Convert.ToInt32(Console.ReadLine());

            int chuvi, dientich;

            chuvi = (chieudai + chieurong) * 2;

            dientich = chieudai * chieurong;

            Console.Write("\nchu vi la:{0}", chuvi);

            Console.Write("\ndientichla:{0}", dientich);

}

}

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