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:
['363', '455']
answer:
3, 4, 5, 6


question:
['z', 'z', '273']
answer:
2, 3, 7


question:
['h', 'o', 's', '335', '317', '279', '217', '485']
answer:

1, 2, 3, 4, 5, 7, 8, 9