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]: ['x', '493', 'x', '211', 'n', '143', '277', '191']
[EX A]: 1, 2, 3, 4, 7, 9

[EX Q]: ['j', '131', 'e', 'c', '149', '325', 'h', 'l', 'i', 'q', '151']
[EX A]: 1, 2, 3, 4, 5, 9

[EX Q]: ['397', 'n', 'z']
[EX A]:
3, 7, 9