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', '317', 'z', 'z', 'h', '227', '439', 'x', 'f']
answer:
1, 2, 3, 4, 7, 9


question:
['493', '241', '239', 'g', 'q', '319', '49', '245']
answer:
1, 2, 3, 4, 5, 9


question:
['459', '431', 'g', 'j', 'u', '165', '265', '341', '131', '273', 'j', '225', 'x', 'z', 'z']
answer:

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