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]: ['217', '481', '87', 'w', 'q', 'c', 'j', '275', 'e', '49', '87', '25']
[A]: 1, 2, 4, 5, 7, 8, 9


[Q]: ['t', '251', 'b', '241', 'z', '255']
[A]: 1, 2, 4, 5


[Q]: ['p', 'm', '363', 'z', '461', 'g', 'k', '23', '497', '391', '179', 'o']
[A]:
1, 2, 3, 4, 6, 7, 9