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]: ['437', 'e', 'b', 'f', '203', 't', '5', '461', 'e', '367', '391', '81']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


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


[Q]: ['l', 'j', '105', 'c', 'r', 'w', 'm']
[A]:
0, 1, 5