Task 15

using System;

namespace C_sharp_Light
{
    class Program
    {
        static void Main(string[] args)
        {
            Random rand = new Random();
            int[,] array = new int[5, 5];

            for (int x = 0; x < array.GetLength(0); x++)
            {
                for (int y = 0; y < array.GetLength(1); y++)
                {
                    array[x, y] = rand.Next(0, 10);
                    Console.Write(array[x, y] + " ");
                }
                Console.WriteLine("");
            }
            Console.WriteLine("\n\n");

            int sum = 0;
            for (int i = 0; i < array.GetLength(1); i++)
            {
                if(i==array.GetLength(1)-1)
                    Console.Write(array[1, i]);
                else
                    Console.Write(array[1, i]+"+");
                sum += array[1, i];
            }
            Console.Write("=" + sum+"\n\n");

            int multiplication = 1;
            for (int i = 0; i < array.GetLength(0); i++)
            {
                if (i == array.GetLength(0)-1)
                    Console.Write(array[i, 0]);
                else
                    Console.Write(array[i, 0] + "*");
                multiplication *= array[i, 0];
            }
            Console.Write("=" + multiplication + "\n\n");

            Console.ReadKey();
        }
    }
}