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:
['t', 'r', 'z']
answer:
-1


question:
['103', '431', 'z', '99', 'h', 'c', 'a', '433', '55', 'k', 'a']
answer:
0, 1, 3, 4, 5, 9


question:
['367', '303', '427', '149']
answer:

0, 1, 2, 3, 4, 6, 7, 9