instruction:
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.
question:
['119', '189', 'k', 'e', '425', '21', '245']
answer:
1, 2, 4, 5, 8, 9


question:
['405', 'x', '163', 'z', 'z', '261', 'o']
answer:
0, 1, 2, 3, 4, 5, 6


question:
['e', '157', 'e', 't', 'x', '185', 'r', '401', 'p', 'y']
answer:

0, 1, 4, 5, 7, 8