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]: ['w', 't', 'a', '199', '385']
[A]: 1, 3, 5, 8, 9


[Q]: ['25', 'b', '455', 'n', '305', '271']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['s', 'r']
[A]:
-1