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


question:
['499', '493', 'i', '87']
answer:
3, 4, 7, 8, 9


question:
['u', '301', '121']
answer:

0, 1, 2, 3