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:
['353', 'k', 'j', '1', '375', 'e', 'd']
answer:
1, 3, 5, 7


question:
['q', 'u']
answer:
-1


question:
['123', '489', '269', '431', '343', '297', 't', 'x']
answer:

1, 2, 3, 4, 6, 7, 8, 9