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]: ['343', 'c', '7', '271', 'm', '151', 'd', 'n', '305', 'y', 'w', '255']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['289', 'v', 'q', 'u', '3', 'i', 't', 'w', 'o', '63', 'a', 'k', '233', '41']
[A]:
1, 2, 3, 4, 6, 8, 9