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:
['375', '457', '423', 'q', 't']
answer:
2, 3, 4, 5, 7


question:
['211', 'v', 'a', '445', '185', '135', 'v', 'w', 'b', '155', '315', '1']
answer:
1, 2, 3, 4, 5, 8


question:
['q', 'y', '49', '497', 'a', 'f', 'v', 'x', 'f', '347', '183', '489']
answer:

1, 3, 4, 7, 8, 9