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:
['87', '353', '329', '163', 'i', 'd', '287']
answer:
1, 2, 3, 5, 6, 7, 8, 9


question:
['z', 'c', 'n', '351', 'f', '239', '71', '351', 'b', '1', '321', 'h', '163']
answer:
1, 2, 3, 5, 6, 7, 9


question:
['85', '21', '371', 'q', 'e', 'y', 'u', 'k']
answer:

1, 2, 3, 5, 7, 8