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:
['183', '235', 'a', '261', 'z', 'n', 's', 'q', 'm', '311', '399', '457']
answer:
1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['s', '443', '239', 't', '99']
answer:
2, 3, 4, 9


question:
['25', 'n', 'n', '481', 'w', '91', '251']
answer:

1, 2, 4, 5, 8, 9