using System;

public class Program

{

    public static void Main()

    {

        //Note that the title is supposed to be humorous.

        Console.WriteLine("A bunch o' people are working on their password systems here.");

        Console.WriteLine("Some people don't realize the efficiency of using a multidimensional string array to store their usernames and passwords!!!");

        Console.WriteLine("Feel free to use this, fork it, do anything with it; it's free. Go ahead. Act like it's yours.");

        Console.WriteLine("Disclaimer:");

        Console.WriteLine("If you aren't experienced enough to copy the code below without copying this stuff...");

        Console.WriteLine("... it probably means you shouldn't. If you have a teacher, they would see right through this.");

        Console.WriteLine("Also, if you get in trouble for copying this, it isn't my fault so don't sue or anything, because remember: it's practically yours.");

        Console.WriteLine("----");

        Console.WriteLine("So, here's some really simple code, using only 21 lines, that allows you to make usernames and passwords really easily.");

        Console.WriteLine("~~~~");

        //Thar she blows

        string[,] UandP = new string[,] {{"Username","Password"},{"MissileLaunchCode","125815"},{"Spaghetti","Meatball"}};

        Console.WriteLine("Enter a username:");

        string Input = Console.ReadLine();

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

        {

            if (UandP[i,0] == Input)

            {

                Console.WriteLine("Username match found. Enter a password:");

                if (UandP[i,1] == Console.ReadLine())

                {

                    Console.WriteLine("Correct password; success!");

                }

                else

                {

                    Console.WriteLine("Invalid password.");

                }

            }

            else

                {

                    Console.WriteLine("Username does not match at index "+i+"...");

                }

        }

        //End of script.

        //If you'd like to add second, or third passwords, you can make a third string inside a bracket, and use UandP[i,2].

        //Use this.

        //string[,] UandP = new string[,] {{"Username","Password","SecondPassword"}};

        //if (UandP[i,1] == Console.ReadLine())

        //  {

        //      Console.WriteLine("Enter second password.");

                //if (UandP[i,2] == Console.ReadLine())

                //  {

                //      Console.WriteLine("Correct password; success!");

                //  }

        //  }

    }

}