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:
['381', '129']
answer:
1, 2, 3, 8, 9


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


question:
['h', 'l', 'x', 'v', 'v', '413', 'p', '45', '105', '183', 'p', 'k']
answer:

0, 1, 3, 4, 5, 8