dobra... takze kod jsem predelal takto:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int opakovani = 1;
            int radky = Convert.ToInt32(Console.ReadLine());
            int sloupce = Convert.ToInt32(Console.ReadLine());
            string opacko = Console.ReadLine();
            int x = 0;
            int o = 0;
            bool pokus = int.TryParse(opacko, out opakovani);
            if (pokus == false)
            {
                opakovani = 1;
            }
            while (opakovani > 0)
            {
                x = 0;
                for (int i = radky; i > 0; i--)
                {
                    for (int y = sloupce; y > x; y--)
                    {
                        if (y == x + 1)
                        {
                            Console.Write(y);
                        }
                        else
                            Console.Write(y + " ");
                    }
                    x++;
                    Console.WriteLine();
                }
                Console.WriteLine();
                opakovani--;
            }
        }
    }
}