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:
['251', '173', '301', '339', '267', 'p', '347']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 9


question:
['209', 'g', '383', 'q']
answer:

0, 2, 3, 8, 9