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]: ['s', '45']
[A]: 4, 5


[Q]: ['445', 'o', '67', 'u', 'c']
[A]:
4, 5, 6, 7