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:
['219', 'v', '295', '291', 'n', 'a', '133', 'a', 'y', 'i', 'e', '235', '461']
answer:
1, 2, 3, 4, 5, 6, 9


question:
['x', 'x', '145', 'p', '11', 'j', 'e', '93', '213', '89', '445', 'z', 'z']
answer:
1, 2, 3, 4, 5, 8, 9


question:
['421', 'u', 'f', '101', '361', '145', '43', '475', '309', '145']
answer:

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