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]: ['b', 'n', '369', '199', 'r', '165', '63', 'y', '331', '57']
[EX A]: 1, 3, 5, 6, 7, 9

[EX Q]: ['s', '443', '239', 't', '99']
[EX A]: 2, 3, 4, 9

[EX Q]: ['467', 'g', 'y', '399', '39', '149', '209', '263', 'g', 'w']
[EX A]:
0, 1, 2, 3, 4, 6, 7, 9