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:
['473', '357', 'i', 'j', '299', 's', '495', '165', 'o', 'l', 'x', 'v', '1', 'o', '469']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['63', 'd', 'd', 'h', 'p', 'j', 'c', '11', 'p', '405', 'k', '59', 'p']
answer:
0, 1, 3, 4, 5, 6, 9


question:
['m', 'd']
answer:

-1