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


question:
['493', '241', '239', 'g', 'q', '319', '49', '245']
answer:
1, 2, 3, 4, 5, 9


question:
['g', 'z', '289']
answer:

2, 8, 9