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]: ['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']
[EX A]: 1, 3, 4, 7, 9

[EX Q]: ['h', '309', 'q', 'w', '367', '245', '181', 'w', '377', '33']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['341', '409', 'l', 'u', '399']
[EX A]:
0, 1, 3, 4, 9