using System;

​

interface Iopenable

{

    string OpenSesame();

}

public class TreasureBox : Iopenable

{

    public string OpenSesame(){

        Console.WriteLine();

        return "Congratulations !...Here is Your Lucky Win";

    }

}

public class Parachute : Iopenable

{

    public string OpenSesame(){

        Console.WriteLine();

        return "Have a Thirlling Experiance !....Flying in Air";

    }

}

public class Program

{

    public static void Main()

    {

        Iopenable T = new TreasureBox() ;

        Iopenable P = new Parachute();

        Console.WriteLine("Enter the Letter Found in Paper :");

        string Letter = Console.ReadLine();

        if (Letter.ToUpper() == "T")

        {

            Console.WriteLine(T.OpenSesame());

        }

        else if (Letter.ToUpper() == "P")

        {

            Console.WriteLine(P.OpenSesame());

        }

        else

        {

            Console.WriteLine();

            Console.WriteLine("Better Luck next Time...");

        }

    }

}