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]: ['e', '307', '191', 'k', 'o', 'j', '99']
[EX A]: 0, 1, 3, 7, 9

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

[EX Q]: ['207', 'w', '35', 'x', 'o', '469', '283', 'x']
[EX A]:
0, 2, 3, 4, 5, 6, 7, 8, 9