var pokemon = int.Parse(Console.ReadLine());
            var pokemon2 = int.Parse(Console.ReadLine());
            var max = int.Parse(Console.ReadLine());
            var count=0;
            for (int a = 1; a <= pokemon2; a++)
            {
                if(count < max)
                {
                    for (int b = 1; b <= pokemon2; b++)
                    {
                      count++;
                      Console.Write("({0} <-> {1}) ",a,b);
                    }
                }

            }
            Console.WriteLine();