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]: ['117', '247', '49', '63']
[EX A]: 1, 2, 3, 4, 6, 7, 9

[EX Q]: ['n', 'g', 'd']
[EX A]: -1

[EX Q]: ['e', 'e', '61', '353', 'r', '15', 'l', 'd', '143', '133', 'n', '57', 'z']
[EX A]:
1, 3, 4, 5, 6, 7