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:
['u', '343', '167', 'a']
answer:
1, 3, 4, 6, 7


question:
['q', '403', '293', '245', '303', '145', 'u', '385', 'c', 'p', 'r', 'y', '53']
answer:
0, 1, 2, 3, 4, 5, 8, 9


question:
['429', '351', '203', 'w', '309', '399', '17', '155', 'r', 'y', '31', 'r']
answer:

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