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:
['l', 'g', 'o', 'x', '27', 'r', '123', '395', 'p', '27', '213', '455', 'y', '97']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['381', '357', 'w', 'r', '115', 'z', '389', 'p', 'p', '101', '229']
answer:
0, 1, 2, 3, 5, 7, 8, 9


question:
['y', 'v', '79', '181', '331', 'u', 'q', '117']
answer:

1, 3, 7, 8, 9