l = [8, 9, 2, 5, 10, 1, 4, 6, 3, 7, 11] def b_sort(arr): for i in range(len(arr)): for j in range(len(arr)-1, 0, -1): if arr[j] < arr[j-1]: arr[j], arr[j-1] = arr[j-1], arr[j] return arr print(b_sort(l))