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.

[Q]: ['197', 'p', 'e', '217', '327', '439', '59', 'o', '355', 'z']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['219', '127', '449', 'u', 'g']
[A]: 1, 2, 4, 7, 9


[Q]: ['125', 'h', '123', 'i', 'w', '393', 'z', 'z', 'w', '225', 's', '161', '249', 'a', '469']
[A]:
1, 2, 3, 4, 5, 6, 9