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]: ['z', 'z', '273']
[A]: 2, 3, 7


[Q]: ['z', 'b', 'c', 'l', '453', 'h', '215', '447', '487', 'p', 'y', 'v']
[A]: 1, 2, 3, 4, 5, 7, 8


[Q]: ['397', '287', '401', '97']
[A]:
0, 1, 2, 3, 4, 7, 8, 9