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]: ['371', '459', '9', 'j', '425', 'k', '495', 'x', '105', '49', 'j', '101', 's']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['v', 'w', '125', 'r', 'a', '309', '259', 'c', 'a', 'c', 'w', '273', '279']
[EX A]: 0, 1, 2, 3, 5, 7, 9

[EX Q]: ['n', '189', '469', '17']
[EX A]:
1, 4, 6, 7, 8, 9