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:
['163', '375', 'e', 'g', '115', '445', 'c', '393', 'm', '59']
answer:
1, 3, 4, 5, 6, 7, 9


question:
['b', 'r', 'n', '89', '379', '283', '27', 's', '361', 'm', 'l']
answer:
1, 2, 3, 6, 7, 8, 9


question:
['t', 'b', '365', '1', '349', 'f']
answer:

1, 3, 4, 5, 6, 9