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]: ['421', '99', '115', 'x']
[A]: 1, 2, 4, 5, 9


[Q]: ['323', '243', '385', 'z', '345', 'v', '359', 'e', '215', '417', 'g', '445', '145', '413']
[A]: 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['333', 'w', 'u', '155', '477', 'l', 'f', '417']
[A]:
1, 3, 4, 5, 7