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:
['461', 'u', 't']
answer:
1, 4, 6


question:
['f', '463', '169', '175']
answer:
1, 3, 4, 5, 6, 7, 9


question:
['429', '85', 'z', '185', 'v', '113', 'd', 'y', '63', 'd', '23', 'f', 'd', 'h', 'z']
answer:

1, 2, 3, 4, 5, 6, 8, 9