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:
['p', '45', 'z', '85', 'k', 'e', '191', '265', '261', 'w', 'l', '263', 'w']
answer:
1, 2, 3, 4, 5, 6, 8, 9


question:
['d', '335', '23', '461', '497', 'p', '313']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['h', 'd', '127']
answer:

1, 2, 7