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:
['497', '21', '239', '487', '149', 'q']
answer:
1, 2, 3, 4, 7, 8, 9


question:
['493', '241', '239', 'g', 'q', '319', '49', '245']
answer:
1, 2, 3, 4, 5, 9


question:
['15', '41', 'q', '283', 'y', '351', '117', '241', 'u', '183', '427', '269', 'x', '449']
answer:

1, 2, 3, 4, 5, 6, 7, 8, 9