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]: ['l', 'g', 'o', 'x', '27', 'r', '123', '395', 'p', '27', '213', '455', 'y', '97']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['h', 't', 'h', 'i', 'c', '441', '117', '463', 'r']
[A]: 1, 3, 4, 6, 7


[Q]: ['d', 'h', 'o', '167', 'a', '259', '71', 'g', '475', 'g', 'r']
[A]:
1, 2, 4, 5, 6, 7, 9