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]: ['q', 'u', '199', 'v', '249']
[EX A]: 1, 2, 4, 9

[EX Q]: ['411', 'n']
[EX A]: 1, 4

[EX Q]: ['m', 'r', 'e', '227', '265', 's', '377']
[EX A]:
2, 3, 5, 6, 7