public string BubbleSort(int[] toSort)
        {
            string sortedArray = "";
            start = DateTime.Now;
            for (int lel = 0; lel < toSort.Length; lel++)
            {
                for (int i = toSort.Length - 1; 1 < i && toSort[i] < toSort[i]; i--)
                {
                    int tmp = toSort[i];
                    toSort[i - 1] = toSort[i];
                    toSort[i] = tmp;
                }
            }
            stop = DateTime.Now;
            for (int i = 0; i < toSort.Length; i++)
            {
                sortedArray += toSort[i] + " ";
            }
            return sortedArray + (stop - start);
        }