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]: ['n', 'm', 'u', '267']
[A]: 2, 6, 7


[Q]: ['j', '131', 'e', 'c', '149', '325', 'h', 'l', 'i', 'q', '151']
[A]: 1, 2, 3, 4, 5, 9


[Q]: ['e', 'o', '87']
[A]:
7, 8