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:
['s', 'd']
answer:
-1


question:
['f', 'f', '149', '311', '331', 'l', 'u', '349', 'v', 'v', '417', '285']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['447', 'm', 'g', '135', 'u']
answer:

1, 3, 4, 5, 7