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:
['x', '493', 'x', '211', 'n', '143', '277', '191']
answer:
1, 2, 3, 4, 7, 9


question:
['x', 'a', '381', 'k', 'n', 'm', '267', 'r', '193', 'f', 'h', 'r', '327', 'i', 'h']
answer:
1, 2, 3, 6, 7, 8, 9


question:
['301', 'k', 'a', '499', '169', 'p', '275', '305', '163', '179', 'a', '379', 'z']
answer:

0, 1, 2, 3, 4, 5, 6, 7, 9