using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        int[,] numbers = {

            {0, 1, 2},

            {3, 4, 5}

        };

        var row_count = numbers.GetLength(0);

        var column_count = numbers.GetLength(1);

​

        Console.WriteLine(numbers[0, 1]); 

    }

}