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', 'u', 'e', 'a', '369', 'e', 'r', 'm']
answer:
3, 6, 9


question:
['r', '135', 't', 'm', 'f', '329', '475', '243', 'z', 'q', '31', '141']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['205', 'b', '135', 'k', 'o']
answer:

0, 1, 2, 3, 5