using System;

​

public class Program

{

    public static void Main()

    {

        bool CoffeeNotFound = true;

        String[,] Towerblock = {{"T1", "T2", "T3", "T4"}, {"T11", "T12", "T13", "T14"}, {"T21", "T22", "T23", "T24"}, {"T31", "T32", "T33", "T34"}};

        //x = floor number

        for (int x = 0; x < Towerblock.GetLength(0); x++)

        {

            //y = room number

            for (int y = 0; y < Towerblock.GetLength(1); y++)

            {

                //test to see if loop runs smoothly: Console.WriteLine("The room number is " + Towerblock[x,y]);

                if (Towerblock[x, y] == "Coffee")

                {

                    CoffeeNotFound = false;

                    if (CoffeeNotFound == false)

                    {

                        y = y + 1;

                        Console.WriteLine("The coffee is in T" + x + y);

                    }

                }

            }

        }

​

        if (CoffeeNotFound == true)

        {

            Console.WriteLine("The coffee was not in the tower block");

        }

    }

}