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:
['87', '353', '329', '163', 'i', 'd', '287']
answer:
1, 2, 3, 5, 6, 7, 8, 9


question:
['341', 'e', 'j', '385', 'o', 'z', 'z', '187', 'm', '73', 'u', '413']
answer:
1, 3, 4, 5, 7, 8


question:
['187', '461', 'b']
answer:

1, 4, 6, 7, 8