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:
['k', '135', '297']

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


Ex Input:
['109', 'b']

Ex Output:
0, 1, 9


Ex Input:
['475', '245', '79', 'r', 'a', 'b', 'y', '379', '315', '109', 's', '389']

Ex Output:

0, 1, 2, 3, 4, 5, 7, 8, 9