palindromic

 static void Main(string[] args)
        {
            Stopwatch sw = new Stopwatch();
            sw.Start();
            Dictionary<int, int> results = new Dictionary<int, int>();
            int i1 = 999, i2 = 999;
            int biggest1 = 0, biggest2 = 0;
            while (biggest1 <= biggest2)
            {


                for (int i = i1; i > biggest1; i--)
                {
                    if (isPalindromic(i * i2))
                    {
                        results.Add(i, i2);
                        i2--;
                        biggest1 = i;
                        biggest2 = i2;
                        break;
                    }
                }
                i2--;
            }
            var result = results.Max(c => c.Key * c.Value);
            sw.Stop();
            Console.WriteLine(result);
            Console.WriteLine(sw.Elapsed);
            Console.ReadLine();
        }
        static bool isPalindromic(int n)
        {
            bool res = true;
            string sN = n.ToString();
            for (int i = 0; i <sN.Length/2; i++)
            {
                if (sN[i]!=sN[sN.Length-1-i])
                {
                    return false;
                }
            }
            return res;
        }
    }