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


question:
['433', '133', '255', 'h', '59', 'm', '315', '149', 't', 'y', 'n', '59', '493', '295']
answer:
1, 2, 3, 4, 5, 9


question:
['c', 'd', 'e']
answer:

-1