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:
['285', 'f', '469', 'b', '161', 'q', 'l']
answer:
1, 2, 4, 5, 6, 8, 9


question:
['213', 'm', '347', '217', 'g', '207', '361', 'q']
answer:
0, 1, 2, 3, 4, 6, 7


question:
['a', '151', '479', 'm', 'x', '401', '167', 'e']
answer:

0, 1, 4, 5, 6, 7, 9