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]: ['293', '473', '79', 'j', '455', '285', 'k', 'd', '379', '249', '73', '229']
[EX A]: 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['345', '393', 'v', 'l', 'b', 'd', 'k', 'q', 'x']
[EX A]: 3, 4, 5, 9

[EX Q]: ['n', 'c', '205', 'z', 't', 'e', 'a', 'b', '49', '99', 'q', 'h', '245', 'u']
[EX A]:
0, 2, 4, 5, 9