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.

[EX Q]: ['45', '95', 'y', '363', '265', '307', '309', '423']
[EX A]: 0, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['71', '7', '341', '199', 'z', 'x', '201']
[EX A]: 0, 1, 2, 3, 4, 7, 9

[EX Q]: ['p', '123', 'q', 'x', 'i', 'w', '115', 'l', 'l', 'i', 'x']
[EX A]:
1, 2, 3, 5