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]: ['167', '229', '439', '389', '483', '207']
[A]: 0, 1, 2, 3, 4, 6, 7, 8, 9


[Q]: ['x', '493', 'x', '211', 'n', '143', '277', '191']
[A]: 1, 2, 3, 4, 7, 9


[Q]: ['s', '243', 'a', '463', '431', 'a', '261', '487']
[A]:
1, 2, 3, 4, 6, 7, 8