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:
['159', 's', 'z', '85', 't', 'g']
answer:
1, 5, 8, 9


question:
['117', '247', '49', '63']
answer:
1, 2, 3, 4, 6, 7, 9


question:
['z', 'd', '83', '135', 'm', '393', 'a', 'j']
answer:

1, 3, 5, 8, 9