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:
['b', 'g', '181', 'y', 'd', 'v', '95', 'h', 'n', '103', '41', 'm', 'h', '445', 'z']
answer:
0, 1, 3, 4, 5, 8, 9


question:
['z', '273', '447', 'h']
answer:
2, 3, 4, 7


question:
['185', '147', '387', 'd', '219', '45', '253', 'v', '461', 'z', 'r', 'q', '337', '133']
answer:

1, 2, 3, 4, 5, 6, 7, 8, 9