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', '419', 'f']
[A]: 1, 4, 9


[Q]: ['q', 'u', '199', 'v', '249']
[A]: 1, 2, 4, 9


[Q]: ['205', '181', 'v']
[A]:
0, 1, 2, 5, 8