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:
['265', 'x', '109', '319', 's', 'w', '211']
answer:
0, 1, 2, 3, 5, 6, 9


question:
['t', 'p', 'u', 'a']
answer:
-1


question:
['91', '89', '119', 'c', '289', '181', 's']
answer:

1, 2, 8, 9