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.

[Q]: ['x', '493', 'x', '211', 'n', '143', '277', '191']
[A]: 1, 2, 3, 4, 7, 9


[Q]: ['291', '445', 'q', 't']
[A]: 1, 2, 4, 5, 9


[Q]: ['5', '165', '23', '449', '315', 'r']
[A]:
1, 2, 3, 4, 5, 6, 9