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:
['k', 'k', 'o', 'c', 'p', '301', 'o']
answer:
0, 1, 3


question:
['j', 'v', 'q', '393', 'z', 'l', 'g', 'q', '193']
answer:
1, 3, 9


question:
['441', 'd', 'j', '77', '283']
answer:

1, 2, 3, 4, 7, 8