using System;

public class Program

{

    public static void Main()

    {

        int[,] r6 = { { 0, 1, 2 }, { 3, 4, 5 } };

        r6[1,2] = 7;

        Console.WriteLine("r3.Rank = {0} ", r6.Rank);

​

        foreach (var i in r6){

            Console.Write("{0} ", i);

        }

    }

}