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:
['293', '473', '79', 'j', '455', '285', 'k', 'd', '379', '249', '73', '229']
answer:
2, 3, 4, 5, 7, 8, 9


question:
['m', '107']
answer:
0, 1, 7


question:
['k', 'q', 'b', 'v', '395', 't', 'h', '195']
answer:

1, 3, 5, 9