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:
['v', 'w', 'k']
answer:
-1


question:
['85', '53', '43', 'j', 'e', '443', '231', 'z', 'f', 'v', '235', '377']
answer:
1, 2, 3, 4, 5, 7, 8


question:
['v', 'z', 'u', 't', '499', 'e', '29', 'l', '173', '65']
answer:

1, 2, 3, 4, 5, 6, 7, 9