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:
['99', 'p', 'v', '49', 's', '279', 'v', '287', '355', 'o', '131', 'd', 'b']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['71', 't', '93', '301', 'g', '447', '373', 'd', '133', 'r']
answer:
0, 1, 3, 4, 7, 9


question:
['225', 'w', '81', 'v', '15']
answer:

1, 2, 5, 8