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:
['v', 'p', '113', '241', 's', 'q', 'b', '293', 'l', 'w', 'w', '127']
answer:
1, 2, 3, 4, 7, 9


question:
['221', '191', 'w', 'l', 'h', 'a']
answer:
1, 2, 9


question:
['223', '403', '191', '21']
answer:

0, 1, 2, 3, 4, 9