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:
['333', '207', '13', '339', 'n', '387']
answer:
0, 1, 2, 3, 7, 8, 9


question:
['q', 'a', '149']
answer:
1, 4, 9


question:
['c', '411', 'z', '41', 'z', '365', 'a', 'm', 'x', 'g', '111', 'e', '293']
answer:

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