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:
['475', 'd', '467', 'h', 'r', 'r', '139', '307', '141', 'f']
answer:
0, 1, 3, 4, 5, 6, 7, 9


question:
['v', '467', 'm', '23', '479', '49', 'k', 'u', 'l', '119']
answer:
1, 2, 3, 4, 6, 7, 9


question:
['f', '401', '373', 'g', 'o', '363', 'l']
answer:

0, 1, 3, 4, 6, 7