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:
['269', 'f', '321', '175', '15', 'n', 'b', 'z', '53', 'p', 'x', '457', 'q', 'b']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['475', 's', '123', '389', 'y', 'm', 'v', '47', 'u', '479', '357', '279', '137', 'l', 'i']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['w', '77', '91', '135', '179', 'i', 'b', '493', 'w', '327', '169', 'o', 'k', 'd', '105']
answer:

0, 1, 2, 3, 4, 5, 6, 7, 9