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]: ['c', '155', '61']
[A]: 1, 5, 6


[Q]: ['o', 'e', '187', '153', 'a', '253', 'f']
[A]: 1, 2, 3, 5, 7, 8


[Q]: ['x', 'm', '159']
[A]:
1, 5, 9