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]: ['t', '175', '163', 'k', '279', '385', 'y', '71', 'g']
[A]: 1, 2, 3, 5, 6, 7, 8, 9


[Q]: ['397', 'x', 'e', '179', '105', '381']
[A]: 0, 1, 3, 5, 7, 8, 9


[Q]: ['e', 'v', '93', '401', 'n', 'q', 'w', 'c', 'o', 's', '283']
[A]:
0, 1, 2, 3, 4, 8, 9