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]: ['i', 'e', '17', 'q', '15', 'v']
[A]: 1, 5, 7


[Q]: ['q', 'y', '49', '497', 'a', 'f', 'v', 'x', 'f', '347', '183', '489']
[A]: 1, 3, 4, 7, 8, 9


[Q]: ['449', 't', 'p', 'c', 'e', 'a', 'z']
[A]:
4, 9