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:
['n', 'q', 'z', 'r', '41', '345', '115', '487', '273', 'q', '219', 'i', '23']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['i', '325', '117', 'k', 'y', 'x', '49', '349', '477', 'u', '435']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['485', '417', '141', 'j']
answer:

1, 4, 5, 7, 8