add matrices c#

using System;

namespace add_matrices
{
    class Program
    {
        static void Main(string[] args)
        {
            
            int[,] array2D_A = new int[,]
            {
                {1, 2, 3}, {4 ,5, 6}, {7 ,8, 9},
            };

            for (int x = 0; x < 3; x++)
            {
                Console.WriteLine("{0} {1} {2}", array2D_A[x, 0], array2D_A[x, 1], array2D_A[x, 2] );                
            } 

            Console.WriteLine("");
            int[,] array2D_B = new int[,]
            {
               {9, 8, 7}, {6, 5, 4}, {3, 2, 1},
            };

            for (int x = 0; x < 3; x++)
            {
                Console.WriteLine("{0} {1} {2}", array2D_B[x, 0], array2D_B[x, 1], array2D_B[x, 2] );                
            } 

            Console.WriteLine("");
            int[,] Results = new int[3,3];
            
            for (int x = 0; x < 3; x++)
            {
                for (int y = 0; y < 3; y++)
                {
                    Results[x, y] = array2D_A[x, y] + array2D_B[x, y];
                }
            }      

            for (int x = 0; x < 3; x++)
            {
                Console.WriteLine("{0} {1} {2}", Results[x, 0], Results[x, 1], Results[x, 2] );                
            }    


        }

    }
}