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:
['447', '77', '337', 'i', '257', '477', 'l', 'm', '357', 'k', '293', '425', 's']
answer:
2, 3, 4, 5, 7, 9


question:
['e', '307', '191', 'k', 'o', 'j', '99']
answer:
0, 1, 3, 7, 9


question:
['t', 'h', 'n', 'g', '55', '197', '381', 'v', 'd', 'h', 'e', '427', '9', 'z']
answer:

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