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]: ['y', '101', 'g', 'c', 'z']
[A]: 0, 1


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


[Q]: ['477', 'd', '305', 'o', '243', '467', '459', 'a']
[A]:
0, 2, 3, 4, 5, 6, 7, 9