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]: ['e', 's', '271', 'k', 'e', 'y', '89']
[A]: 1, 2, 7, 8, 9


[Q]: ['109', 't', '283', 'c', 'u', 'y', '251', 'x', '377', 'n', 's', 'd', 't', 'q', 'o']
[A]: 0, 1, 2, 3, 5, 7, 8, 9


[Q]: ['7', 'n', '443', '131', '189', '187', '261', '451', '449', 'o', 'i', 't', '15']
[A]:
1, 2, 3, 4, 5, 6, 7, 8, 9