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:
['d', '25', '323', 'k', 'e']
answer:
2, 3, 5


question:
['v', '351', 's', 'f', 'd', '137', '11', '355', '345', 'm', 's', '165', '97', '225']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['391', 'w', 'k', '223', '297', 'p']
answer:

1, 2, 3, 7, 9