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]: ['3', '181', 'o', '425', 'f', '391']
[A]: 1, 2, 3, 4, 5, 8, 9


[Q]: ['t', '175', '163', 'k', '279', '385', 'y', '71', 'g']
[A]: 1, 2, 3, 5, 6, 7, 8, 9


[Q]: ['e', 'i', '435', '279', '213', 'c', 'k', '15']
[A]:
1, 2, 3, 4, 5, 7, 9