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]: ['73', '199', '189', '27', 'm', '101', '61', '113', 'y', '169']
[EX A]: 0, 1, 2, 3, 6, 7, 8, 9

[EX Q]: ['157', '481', 'n', 't', 'd', 'j']
[EX A]: 1, 4, 5, 7, 8

[EX Q]: ['397', '231', 'd', 'p', '477', 'e', 's', '157', '109', 'e', 'v', 'x']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 9