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]: ['149', 'o', '237', 't', 'k', 'w']
[A]: 1, 2, 3, 4, 7, 9


[Q]: ['k', 'q', 'a', 'u', 'q']
[A]: -1


[Q]: ['e', 'd', '17', '207', '107', 'i', 'q', 'm', '217', '249']
[A]:
0, 1, 2, 4, 7, 9