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]: ['359', '233', '455', '449', 'h']
[EX A]: 2, 3, 4, 5, 9

[EX Q]: ['y', '449', 'g', '345', '167', 'q', 'k']
[EX A]: 1, 3, 4, 5, 6, 7, 9

[EX Q]: ['155', '73', '405', 'h', '391', 'p', 'b', '169', 'y']
[EX A]:
0, 1, 3, 4, 5, 6, 7, 9