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:
['m', 'c', '139', '433', '29', 'z', '45', 't', 'a', 'n', '297', '45', '281']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['y', 'b']
answer:
-1


question:
['469', '57', '275', 'f', '193', '445', 'r', '167', '157', 'l', 'd']
answer:

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