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:
['y', '101', 'g', 'c', 'z']
answer:
0, 1


question:
['j', 'k']
answer:
-1


question:
['193', '195', '411', 'p', '161', 'j']
answer:

1, 3, 4, 5, 6, 9


