Task 20

static void Main(string[] args)
        {
            int resultAddition = 0;
            int resultMultiplication = 0;
            int[,] arrayNumbers = { { 5, 3,2 }, { 5, 3, 2} };

            for (int i = 0; i < arrayNumbers.GetLength(0); i++)
            {
                Console.WriteLine();

                for (int b = 0; b < arrayNumbers.GetLength(1); b++)
                {
                    Console.Write(arrayNumbers[i, b] + " ");
                    resultAddition += arrayNumbers[1, b];

                    for (int j = 1; j < arrayNumbers.GetLength(0); j++)
                    {
                        resultMultiplication += (arrayNumbers[0, b] * arrayNumbers[0, j]);
                    }
                }
            }

            Console.WriteLine($"\nПроизведение: {resultMultiplication} ");
            Console.WriteLine($"Сумма {resultAddition}");

        }