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:
['379', '485', '415', '37', '221', '125', '245', '87', 'a']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['127', 'd', '479', 'v', '213', 'm', 'z', '151', 'h', '455']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['w', 'u', '123', 'e', '21', 'c', 'x', '279', 'm', '385', 'm', 'y', '61', 't', 'y']
answer:

1, 2, 3, 5, 6, 7, 8, 9