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]: ['23', 'p', '409', '305', 'z', 'q', '295', '391']
[A]: 0, 1, 2, 3, 4, 5, 9


[Q]: ['487', 'x']
[A]: 4, 7, 8


[Q]: ['t', '231', '311', '89', 'z']
[A]:
1, 2, 3, 8, 9