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]: ['r', 'o', 'n', '219', 'a', '419', 'x', '261', 'h', 's', '373', '155', 's', '171']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['v', '467', 'm', '23', '479', '49', 'k', 'u', 'l', '119']
[EX A]: 1, 2, 3, 4, 6, 7, 9

[EX Q]: ['r', 'a', '191', 'z', '337', 'w', 'n', 'r', 'w', 'j', '189', '243']
[EX A]:
1, 2, 3, 4, 7, 8, 9