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]: ['n', 'f', '355', 'e', '113', '131', '443', '275', '249', '487']
[A]: 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['411', 'n']
[A]: 1, 4


[Q]: ['155', 'n', '185', 'p', '449', 'o', '493']
[A]:
1, 3, 4, 5, 8, 9