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]: ['475', 'j', '19', 'j', '325']
[EX A]: 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['279', 't', 'e', 'j', '437', '167', 's', 'n']
[EX A]: 1, 2, 3, 4, 6, 7, 9

[EX Q]: ['z', 'z', 'p']
[EX A]:
-1