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:
['5', 'y', 'l', '311', '269', 'f', 'm', '25', 'j', 's', 't', '283', 'p']
answer:
1, 2, 3, 5, 6, 8, 9


question:
['425', 'x', 'u', 'f', 'v', '481', 'm', 'y', '159', '1']
answer:
1, 2, 4, 5, 8, 9


question:
['441', '23', '145', 'b', 'd', '437']
answer:

1, 2, 3, 4, 5, 7