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:
['459', 'd', '473', 'i', 'l', 's']
answer:
3, 4, 5, 7, 9


question:
['411', 'n']
answer:
1, 4


question:
['327', 'g', 'h', '91', '219', '67', '119']
answer:

1, 2, 3, 6, 7, 9