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]: ['k', 'q', 'a', 'u', 'q']
[EX A]: -1

[EX Q]: ['185', '425']
[EX A]: 1, 2, 4, 5, 8

[EX Q]: ['q', '259', 'a', '481', '47', 'a', '323', '293', '5', '499', 'n', 'p']
[EX A]:
1, 2, 3, 4, 5, 7, 8, 9