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:
['69', '307', 'l', 'j', '167', 'o', '427', 'j']
answer:
0, 1, 2, 3, 4, 6, 7, 9


question:
['c', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']
answer:
2, 3, 4, 5, 6, 9


question:
['113', 'p', '361']
answer:

1, 3, 6