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:
['25', 'b', '455', 'n', '305', '271']
answer:
0, 1, 2, 3, 4, 5, 7


question:
['v', '243', 't', 's', '283', 'z', '111', '307', '259', '363', 'd', 'h', 'f']
answer:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9