using System;

​

public class Program

{

    public static void Main()

    {

        char[, ] encrypter = new char[6, 6];

        Char[] messageToEncrypt = "This is a test".ToCharArray();

        int count = 0;

        bool message_finished = false;

        for (int c = 0; c < 6; c++)

        {

            for (int r = 0; r < 6; r++)

            {

                encrypter[r, c] = messageToEncrypt[count];

                count += 1;

                if (count >= messageToEncrypt.Length) {

                    message_finished = true;

                    break;

                }

            }

            if (message_finished)

                break;

        }

​

        // Console.Write(encrypter);

        for (int i = 0; i < encrypter.GetLength(0); i++)

        {

            for (int j = 0; j < encrypter.GetLength(1); j++)

            {

                Console.Write(encrypter[i,j] + "\t");

            }

            Console.WriteLine();

        }

    }

}