using System;

public class MyProgram
{
    private static Random random = new Random();

    public static void Main(string[] args)
    {
        int n, m, i, j;
        string sz;

        n = 4;
        sz = "";
        m = 8;
        int[] t = new int[n * m];

        for (i = 0; i <= n - 1; i++)
        {
            for (j = 0; j <= m - 1; j++)
            {
                t[i * m + j] = random.Next(9);
                Console.Write(t[i * m + j].ToString() + " ");
                sz = sz + "--";
            }
            Console.WriteLine("");
        }
        Console.WriteLine(sz);
        for (j = 0; j <= m - 1; j++)
        {
            for (i = 0; i <= n - 1; i++)
            {
                if (j % 2 == 0)
                {
                    Console.Write(t[i * m + j].ToString() + " ");
                }
                else
                {
                    Console.Write(t[(n - 1 - i) * m + j].ToString() + " ");
                }
            }
        }
    }
}