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:
['v', '477', 'j', '339', '245', 'r', '417', 'g', '475', 'n', 'q', '171']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['381', '277', 'g', '307', 'p', '105', '341', 'o', '313', '5', '375', '145', 'k']
answer:
0, 1, 2, 3, 4, 5, 7, 8


question:
['307', '231', 'b', 'h', 't', 'f', '313', 'c', '359', '453', 'j']
answer:

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