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:
['z', '271', 'h', 'm', '365']
answer:
1, 2, 3, 5, 6, 7


question:
['k', 'b', 'k', 'l', '441', 'b', '115', 'd', 'b', 'r', '115', 'k', 'a']
answer:
1, 4, 5


question:
['m', '465', '433', '3']
answer:

3, 4, 5, 6