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:
['387', '7', '93', '105', '181']

Ex Output:
0, 1, 3, 5, 7, 8, 9


Ex Input:
['r', 'u', '83', 'x', '155', '89', 'c', '391', '41', 'o', 'i', '161']

Ex Output:
1, 3, 4, 5, 6, 8, 9


Ex Input:
['35', '125', '143', 'q', 'k', 'h', '475', 'a', '199', '107', 'u']

Ex Output:

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