using System;

public class Program

{

    public static void Main()

    {

        int[,] arr = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };//declaration and initialization  

​

        //traversal  

        for (int i = 0; i < 3; i++)

        {

            for (int j = 0; j < 3; j++)

            {

                Console.Write(arr[i, j] + " ");

            }

            Console.WriteLine();//new line at each row  

        }

    }

}