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]: ['25', 'n', 'n', '481', 'w', '91', '251']
[EX A]: 1, 2, 4, 5, 8, 9

[EX Q]: ['175', 'q', 'h', 'z', 'v', 'y', '39', '419', '87', '425', 'z', '375']
[EX A]: 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['477', 'o', '97', '465', '223', '403']
[EX A]:
0, 2, 3, 4, 5, 6, 7, 9