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]: ['131', '483', 'k', '387', '451', 'j']
[A]: 1, 3, 4, 5, 7, 8


[Q]: ['345', 'h', '9']
[A]: 3, 4, 5, 9


[Q]: ['87', 'n', '173', 'y', 'l', 'z', 'l', '265']
[A]:
1, 2, 3, 5, 6, 7, 8