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:
['41', 'o', 'm', 'h', 's', 't', '407', '445', '371', '93', '291', '457', 'r', '391', 'a']
answer:
0, 1, 2, 3, 4, 5, 7, 9


question:
['b', '329', 'm', 'q', 'k', 'z', 'k', '199', 'v', 'l']
answer:
1, 2, 3, 9


question:
['215', '425', '191', 'c', '87', 'w', '39', 'z', 't', '15', '85', '259']
answer:

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