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]: ['285', 'w', '37', '471', 'y', '435', '27', '415', 'f', 's', '27', 'b']
[A]: 1, 2, 3, 4, 5, 7, 8


[Q]: ['215', '391', '251', '177']
[A]: 1, 2, 3, 5, 7, 9


[Q]: ['93', 'h', 'd', 'z', '395', 'r', 'j', 'f', '323', '215', 'n', 's', '497']
[A]:
1, 2, 3, 4, 5, 7, 9