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


[Q]: ['183', '235', 'a', '261', 'z', 'n', 's', 'q', 'm', '311', '399', '457']
[A]: 1, 2, 3, 4, 5, 6, 7, 8, 9


[Q]: ['459', '371', 'h', 't', 'l', '367', '149', '375', 'n', '387']
[A]:
1, 3, 4, 5, 6, 7, 8, 9