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]: ['s', '443', '239', 't', '99']
[A]: 2, 3, 4, 9


[Q]: ['s', 'd']
[A]: -1


[Q]: ['h', '155', '283', '363', 'j', 'o', 'k']
[A]:
1, 2, 3, 5, 6, 8