public void radixSort()
        {
            List<int>[] buckets = new List<int>[10];
            for (int i = new int(); i < buckets.Count(); i++)
                buckets[i] = new List<int>();
            for (int i = new int(); i < 4; i++)
            {
                for (int j = new int(); j < data.Count(); j++)
                    buckets[getDigit(data[j], (i + 1))].Add(data[j]);
                data = new List<int>();
                foreach (List<int> x in buckets)
                    foreach (int y in x)
                        data.Add(y);
                for (int j = new int(); j < buckets.Count(); j++)
                    buckets[j] = new List<int>();
            }
        }