massiv3.1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ijunior3._1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[,] arr = new int [5,5];
            Random rand = new Random();
            int sum = 0;
            int mutiplication = 0;


            for (int i = 0; i < arr.GetLength(0); i++)
            {
                for ( int j = 0; j < arr.GetLength(1); j++)
                {
                    arr[i, j] = rand.Next(0, 10);
                    Console.Write(arr[i, j] + " ");
                }
                Console.WriteLine();
            }
            sum = arr[1, 0] + arr[1, 1] + arr[1, 2] + arr[1, 3] + arr[1, 4];
            mutiplication = arr[0, 0] * arr[1, 0] * arr[2, 0] * arr[3, 0] * arr[4, 0];
            Console.WriteLine("\nСумма второй строки : " + sum + "\nПроизведение первого столбца: " + mutiplication +"\n");
        }
    }
}