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]: ['p', 'p', '91']
[A]: 1, 9


[Q]: ['345', 'k']
[A]: 3, 4, 5


[Q]: ['a', '399', 's', 'e', '495', 'd', 'f', 'a', '323']
[A]:
2, 3, 4, 5, 9