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]: ['b', 'm', '471']
[A]: 1, 4, 7


[Q]: ['261', '227', 'f', 'w', '141', 'k', '119', '407', '409', '373']
[A]: 0, 1, 2, 3, 4, 6, 7, 9


[Q]: ['k', 'u', '83', 'm', '397', '189', 'q', '217', 'r', 'r', '191', '109', '461']
[A]:
0, 1, 2, 3, 4, 6, 7, 8, 9