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:
['479', '205', 'e', 'c', '57', 'm', 'i', '33', 'f', '45', 'z']
answer:
0, 2, 3, 4, 5, 7, 9


question:
['85', '101', 'j', 'g', 'o', 'f', 'w', 'o', 'm', '45', 'e', 'z']
answer:
0, 1, 4, 5, 8


question:
['465', '403', '349', '491', 'v', '49', 'y', 'j', 'm', 's', '287', '189']
answer:

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