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]: ['271', '9', 'v', '93', 'f', 'd']
[EX A]: 1, 2, 3, 7, 9

[EX Q]: ['229', 'x', '49', 'p', '73', '77', '337', '497']
[EX A]: 2, 3, 4, 7, 9

[EX Q]: ['i', '435', '341', '255', '87', 'h', 'i', 'i', '41', '305', 'm', 'w', '411', 'r']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 8