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:
['n', 'f', '355', 'e', '113', '131', '443', '275', '249', '487']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['71', 't', '93', '301', 'g', '447', '373', 'd', '133', 'r']
answer:
0, 1, 3, 4, 7, 9


question:
['a', 'c', '399', '161', '443', 'h', 'g', 's']
answer:

1, 3, 4, 6, 9