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:
['g', 'j', '239', 'w', 'q', 'm', 'a', 'l', 'n', 'p', 'i', 'r']
answer:
2, 3, 9


question:
['t', '419', 'f']
answer:
1, 4, 9


question:
['t', 'j', '249', '123', '473', 'i', 'n', 'u', '463', '377', '411', 'x', '403', 'g', 'z']
answer:

0, 1, 2, 3, 4, 6, 7, 9