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.

[EX Q]: ['y', 'm', '121', 'h', 'm', '189', '117', '257', 'y', '181', '279', 'a', '453']
[EX A]: 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['l', 'z', '453', '361', 'p', 'c', 'n', '77', '113', '261', 'g']
[EX A]: 1, 2, 3, 4, 5, 6, 7

[EX Q]: ['a', 'y', 'a', 'q', '67', 'm', 'u', '447']
[EX A]:
4, 6, 7