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]: ['211', 'v', 'a', '445', '185', '135', 'v', 'w', 'b', '155', '315', '1']
[EX A]: 1, 2, 3, 4, 5, 8

[EX Q]: ['59', '437', '145', '165', '217', 'l', '185', '495', 'z']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['261', '211', 'i']
[EX A]:
1, 2, 6