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', '249', '287']
[A]: 2, 4, 7, 8, 9


[Q]: ['219', '127', '449', 'u', 'g']
[A]: 1, 2, 4, 7, 9


[Q]: ['299', '371', '313', '17', 't', 'q']
[A]:
1, 2, 3, 7, 9