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:
['339', '473', '485']
answer:
3, 4, 5, 7, 8, 9


question:
['7', 'n', '443', '131', '189', '187', '261', '451', '449', 'o', 'i', 't', '15']
answer:
1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['497', 'a', '363', '17', '395', 'a', '339', '143', 'j', 'm']
answer:

1, 3, 4, 5, 6, 7, 9