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:
['397', '287', '401', '97']

Ex Output:
0, 1, 2, 3, 4, 7, 8, 9


Ex Input:
['g', 'j', '239', 'w', 'q', 'm', 'a', 'l', 'n', 'p', 'i', 'r']

Ex Output:
2, 3, 9


Ex Input:
['371', '459', '9', 'j', '425', 'k', '495', 'x', '105', '49', 'j', '101', 's']

Ex Output:

0, 1, 2, 3, 4, 5, 7, 9