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:
['i', '485', '109', 'e', '15', '461', 'r', 'l', '223', '327']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['y', '439', 't', '29', '425', '289']
answer:
2, 3, 4, 5, 8, 9


question:
['215', 'm', 's', '193']
answer:

1, 2, 3, 5, 9