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:
['y', 'm', '121', 'h', 'm', '189', '117', '257', 'y', '181', '279', 'a', '453']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['z', '375', 'v', 'o', 'v', '31', 'u', 'x', 'q', 'x', '71', 'n', 'v']
answer:
1, 3, 5, 7


question:
['93', '35', '25', '355', 'r', 'k', 't', 'm']
answer:

2, 3, 5, 9