static void Delete(double[,] x, int a, int k)
        {
            for (int i = a; i < k - 1; i++)
            {
                for (int j = 0; j < k; j++)
                {
                    double p = x[j, i];
                    x[j, i] = x[j, i + 1];
                    x[j, i + 1] = p;
                }
            }
        }
        static void MaxMin(double[,] x, out int imax1, out int imin1, int k)
        {
            double amax = x[0, 0], amin = x[0, 1];
            imax1 = 0; imin1 = 1;
            for (int i = 0; i < k; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    if (x[i, j] > amax)
                    {
                        amax = x[i, j];
                        imax1 = j;
                    }
                }
                for (int y = i + 1; y < k; y++)
                {
                    if (x[i, y] < amin)
                    {
                        amin = x[i, y];
                        imin1 = y;
                    }
                }
            }
        }
        static void Main(string[] args)
        {
            const int n = 4;
            double[,] a = new double[n, n] { { 4, 5, 6, 8 } ,
                                             { 3, 6, 7, 9 } ,
                                             { 8, 4, 1, 3 } ,
                                             { 7, 5, 6, 3 } };
            int imax, imin, cnt = n;
            MaxMin(a, out imax, out imin, n);
            if (imax == imin)
            {
                Delete(a, imax, n);
                cnt--;
            }
            if (imin > imax)
            {
                Delete(a, imin, n);
                Delete(a, imax, n);
                cnt -= 2;
            }
            else
            {
                Delete(a, imax, n);
                Delete(a, imin, n);
                cnt -= 2;
            }
            for (int i = 0; i < n; i++)
            {
                for (int j = 0; j < cnt; j++)
                    Write("{0} ", a[i, j]);
                WriteLine();
            }
        }