//SOAL NOMOR 2

​

using System;

public class Program

{

    public static void Main()

    {

        int a = 3;

        string c;

        for ( ; ; )

        {

            Console.WriteLine("Deret hitung :" + a);

            Console.WriteLine("Hitung Lagi? [Y/T]");

            c = Console.ReadLine();

            if (c == "Y" || c == "y" ){

                a = a * 3;

            }

            else if ( c == "T" || c == "t" ){

                Console.WriteLine("Terima Kasih");

                break;

            }

            else {Console.WriteLine("Mohon Ikut Intruksi");}    

        }

    }

}