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:
['x', 'x', '145', 'p', '11', 'j', 'e', '93', '213', '89', '445', 'z', 'z']
answer:
1, 2, 3, 4, 5, 8, 9


question:
['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']
answer:
1, 3, 4, 7, 9


question:
['447', '437', 'r', 'c', '39', 'c', '497', 'p', '305', '347', 'i', 't']
answer:

0, 3, 4, 5, 7, 9