5.3.4

        static void WriteArray(int[,] x)
        {
            for (int i = 0; i < x.GetLength(0); i++)
            {
                for (int j = 0; j < x.GetLength(1); j++)
                    Write("{0} ", x[i, j]);
                WriteLine();
            }
            WriteLine();
        }
        delegate void mat(int[,] x, int y);
        static void up(int[,] x, int y)
        {
            for (int i = 0; i < x.GetLength(1); i++)
            {
                int xmin = x[y, i];
                for (int j = i; j < x.GetLength(1); j++)
                {
                    if (x[y, j] < xmin)
                    {
                        xmin = x[y, j];
                        for (int k = j; k > i; k--)
                        {
                            x[y, k] = x[y, k - 1];
                        }
                        x[y, i] = xmin;
                    }
                }
            }
        }
        static void down(int[,] x, int y)
        {
            for (int i = 0; i < x.GetLength(1); i++)
            {
                int xmax = x[y, i];
                for (int j = i; j < x.GetLength(1); j++)
                {
                    if (x[y, j] > xmax)
                    {
                        xmax = x[y, j];
                        for (int k = j; k > i; k--)
                        {
                            x[y, k] = x[y, k - 1];
                        }
                        x[y, i] = xmax;
                    }
                }
            }
        }
        static void Matrix(mat even, int[,] a, int x)
        {
            for (int i = x; i < a.GetLength(0); i += 2)
            {
                even(a, i);
            }
        }
        static void Main(string[] args)
        {
            int[,] a = new int[,]
            {
                { 4, 5, 1, 7 } ,
                { 9, 4, 3, 7 }
            };
            WriteArray(a);
            Matrix(up, a, 0);
            Matrix(down, a, 1);
            WriteArray(a);
        }