In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.

Ex Input:
['u', '207', 'q', '371', 's', '51', '217', 'q', '255', '9', '109', 'l', 'b', 'w']

Ex Output:
0, 1, 2, 3, 5, 7, 9


Ex Input:
['185', '425']

Ex Output:
1, 2, 4, 5, 8


Ex Input:
['j', 'b', 'w']

Ex Output:

-1