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:
['363', 'u', '179', 'e', '279', 'a', '151', '173', 'e', '61', '213']
answer:
1, 2, 3, 5, 6, 7, 9


question:
['165', '219', 'r', 's', '191', 'k', '39']
answer:
1, 2, 3, 5, 6, 9


question:
['41', 'p', 'u', 't', '149', '247', '419', 'w', 'o']
answer:

1, 2, 4, 7, 9