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:
['181', 'n', 'p', '349', '321', '457', 'h', 's', 't', 'k', 'x', 'a', '145', '135', 'u']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['295', 'd', 's', '1', '201', 'n', 'f', '15', '151', '307', 'b', '103', '255']
answer:
0, 1, 2, 3, 5, 7, 9


question:
['o', '229', 'o', '357', 'v', '361', 'e', 'w', 'n', '487']
answer:

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