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]: ['v', 'r', '67', '49']
[EX A]: 4, 6, 7, 9

[EX Q]: ['v', '197', '7', 'i', 'q']
[EX A]:
1, 7, 9