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:
['r', '135', 't', 'm', 'f', '329', '475', '243', 'z', 'q', '31', '141']
answer:
1, 2, 3, 4, 5, 7, 9


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


question:
['285', '471', 'q', '313', '323', '71', '225', 'a', 'x']
answer:

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