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]: ['v', '477', 'j', '339', '245', 'r', '417', 'g', '475', 'n', 'q', '171']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['u', '343', '167', 'a']
[A]: 1, 3, 4, 6, 7


[Q]: ['p', 'm', '335', '227', '259', '29', '127', '215', 'x', 'r', '495', '201', '25', 'g']
[A]:
0, 1, 2, 3, 4, 5, 7, 9