using System;

public class Program

{

    public static void Main()

    {

        int i,j;

        int[,] a = new int[3,3];

        Console.WriteLine("enter the value in matrix");

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

        {

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

            {

                a[i,j]=Convert.ToInt32(Console.ReadLine());

            }

        }

        Console.WriteLine("Matrix Contains");

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

        {

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

            {

                if(i==0&&j==1||i==1&&j==0||i==2&&j==1||i==1&&j==2)

                {

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

                }

            else

            {

            Console.Write(" ");

            }

            }

            Console.WriteLine();

        }

    Console.ReadLine();     

    }

}

​