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]: ['391', 'y', '447', '345', '157', '265', 'x', '261', 'm', 'f', 'x', 'x', '379', 'r', 'g']
[A]: 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['q', 'p', 'y', 'p', 'k', 'r', '481', 'v']
[A]: 1, 4, 8


[Q]: ['n', 'c', 'x', '223', 'z', 'p', '411', '211']
[A]:
1, 2, 3, 4