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:
['175', 'q', 'h', 'z', 'v', 'y', '39', '419', '87', '425', 'z', '375']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['409', '283', 'v', 'q', '337', 'i', 'y', 'm', 'd', '123', '219', 'l', 't', 'x', 'c']
answer:

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