using System;

​

public class Program

{

    public static void Main()

    {

        int m, n, i, j, sum = -0;

        Console.WriteLine("Enter no of Rows");

        m = int.Parse(Console.ReadLine());

        int[][] a = new int[m][];

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

        {

            Console.WriteLine("Enter no of Elements in "+(i+1)+" row "); n = int.Parse(Console.ReadLine());

            a[i] = new int[n];

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

            {

                Console.WriteLine("Enter the Elements");

                a[i][j] = int.Parse(Console.ReadLine());

                sum = sum + a[i][j];

            }

        }

​

        Console.WriteLine("Entered Elements are");

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

        {

            for (j = 0; j < a[i].Length; j++)

            {

                //Console.WriteLine();

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

                Console.WriteLine(" ");

            }

        //Console .WriteLine ("\n");

        }

​

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

    }

}