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]: ['395', 'p', '373']
[EX A]: 3, 5, 7, 9

[EX Q]: ['b', '343', '149', 'h', 'w', 'j', 'd', 'r', '461', 'q', '265', '329', '499', 'r', '291']
[EX A]: 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['l', 'b', '307', '161', 'y', '153']
[EX A]:
0, 1, 3, 5, 6, 7