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:
['c', '317', 'z', 'z', 'h', '227', '439', 'x', 'f']
answer:
1, 2, 3, 4, 7, 9


question:
['73', '199', '189', '27', 'm', '101', '61', '113', 'y', '169']
answer:
0, 1, 2, 3, 6, 7, 8, 9


question:
['369', 'k', '225', 'h', 'x', '443', 'a', '239', 'r', '227', 'o', '7', 'x']
answer:

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