using System;

public class Program

{

    public static void Main()

    {

        int sum=0;

      int[,] num={{1,2,3},{4,5,6},{7,8,9}};

   for(int i=0;i<num.GetLength(0);i++)

     {

           for(int j=0;j<num.GetLength(1);j++)

           {

               Console.WriteLine(num[i,j]);

               sum=sum+num[i,j];

           }

        Console.WriteLine();    

     }

        Console.WriteLine("sum= "+sum);

        }

}