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:
['k', '107', '333', '317', 'm', 'w', 'g', 'f']
answer:
0, 1, 3, 7


question:
['c', '317', 'z', 'z', 'h', '227', '439', 'x', 'f']
answer:
1, 2, 3, 4, 7, 9


question:
['401', '485', 't', 'd', '77', 'e', 'q', '485', '497', '49', '467', '347', '415']
answer:

0, 1, 3, 4, 5, 6, 7, 8, 9