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]: ['t', '251', 'b', '241', 'z', '255']
[A]: 1, 2, 4, 5


[Q]: ['117', '247', '49', '63']
[A]: 1, 2, 3, 4, 6, 7, 9


[Q]: ['437', 'o', '393']
[A]:
3, 4, 7, 9