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', '155', '61']
answer:
1, 5, 6


question:
['j', '463', 'z', '35', 'w', '191', '333', 'a']
answer:
1, 3, 4, 5, 6, 9


question:
['r', '101', '41', 'd', 'n', '389', '475', 's', 'c', '361']
answer:

0, 1, 3, 4, 5, 6, 7, 8, 9