using System;

​

public class Program

{

    public static void Main()

    {

        while (true)

        {

            Pr();

        }

    }

​

    static void Pr()

    {

        string[] commLine = new string[100];

        DrawUI(commLine);

        string COMM = Console.ReadLine();

        switch (COMM)

        {

            case "l":

                string lineToWrite = Console.ReadLine();

                switch (lineToWrite)

                {

                    case "0":

                        string comm0 = Console.ReadLine();

                        commLine[0] = comm0;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "1":

                        string comm1 = Console.ReadLine();

                        commLine[1] = comm1;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "2":

                        string comm2 = Console.ReadLine();

                        commLine[2] = comm2;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "3":

                        string comm3 = Console.ReadLine();

                        commLine[3] = comm3;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "4":

                        string comm4 = Console.ReadLine();

                        commLine[4] = comm4;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "5":

                        string comm5 = Console.ReadLine();

                        commLine[5] = comm5;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "6":

                        string comm6 = Console.ReadLine();

                        commLine[6] = comm6;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "7":

                        string comm7 = Console.ReadLine();

                        commLine[7] = comm7;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "8":

                        string comm8 = Console.ReadLine();

                        commLine[8] = comm8;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "9":

                        string comm9 = Console.ReadLine();

                        commLine[9] = comm9;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                    case "10":

                        string comm10 = Console.ReadLine();

                        commLine[10] = comm10;

                        Console.Clear();

                        DrawUI(commLine);

                        break;

                }

​

                break;

            case "s":

                break;

            case "r":

                break;

        }

​

        Console.Clear();

        DrawUI(commLine);

    }

​

    static void DrawUI(string[] commLine)

    {

        for (int i = 0; i < 11; i++)

        {

            if (i < 10)

                Console.WriteLine("  " + i + "│ " + commLine[i]);

            else if (i == 100)

                Console.WriteLine(i + "│ " + commLine[i]);

            else

                Console.WriteLine(" " + i + "│ " + commLine[i]);

        }

​

        Console.WriteLine("───┴───────────────────────────────────────");

        Console.WriteLine("To edit a line type \"l\"; To save the file type \"s\"; To run the file type \"r\"!");

    }

}