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]: ['u', 'm', 's', '101', '427', 'h', 'i', '463', 'j', '77', '465', 'r']
[A]: 0, 1, 2, 3, 4, 5, 6, 7


[Q]: ['s', 'e', 'q', 'd', '339', '373', 'e', 'j', '115', '77', 'm', '311']
[A]:
1, 3, 5, 7, 9