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]: ['v', 'w', '125', 'r', 'a', '309', '259', 'c', 'a', 'c', 'w', '273', '279']
[A]: 0, 1, 2, 3, 5, 7, 9


[Q]: ['j', '195', 'u', '55']
[A]: 1, 5, 9


[Q]: ['e', '483', 'c', '315', '103']
[A]:
0, 1, 3, 4, 5, 8