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

[EX Q]: ['x', '281', 'n', '385', '435', 'l', 's', '445', 'n', 'n', '133']
[EX A]: 1, 2, 3, 4, 5, 8

[EX Q]: ['379', 'v', '123', 'w', '423', '57', '179']
[EX A]:
1, 2, 3, 4, 5, 7, 9