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:
['223', '71']
answer:
1, 2, 3, 7


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


question:
['287', 'p', '31']
answer:

1, 2, 3, 7, 8