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]: ['101', '473', '25', 'i', '117']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['x', '325', 'i', 'n', 'i', 'w', 't']
[A]: 2, 3, 5


[Q]: ['335', 'c', '127', '333', '399', '423', 'f', '379', 'm', '107', 'q', 'o', 't', 'e']
[A]:
0, 1, 2, 3, 4, 5, 7, 9