public static void Main()
var arr = new string[2, 3];
arr[0, 0] = "Floor 0, Room 1";
arr[0, 1] = "Floor 0, Room 2";
arr[0, 2] = "Floor 0, Room 1";
arr[1, 0] = "Floor 1, Room 1";
arr[1, 1] = "Floor 1, Room 1";
arr[1, 2] = "Floor 1, Room 1";
for (int i = 0; i < arr.GetLength(0); i++)
for (int j = 0; j < arr.GetLength(1); j++)
Console.WriteLine(string.Format("{0}\t", arr[i, j]));