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]: ['x', '91', 'q', '417', '385', '455', '393', 'm', 's', 'c', '91', '71', 'n']
[A]: 1, 3, 4, 5, 7, 8, 9


[Q]: ['t', 'u', 'e', 'a', '369', 'e', 'r', 'm']
[A]: 3, 6, 9


[Q]: ['397', '13']
[A]:
1, 3, 7, 9