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]: ['71', '7', '341', '199', 'z', 'x', '201']
[A]: 0, 1, 2, 3, 4, 7, 9


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


[Q]: ['y', 'y', '399', '49', '469', 's', '179', 'm', '433', 'z', '355', '471']
[A]:
1, 3, 4, 5, 6, 7, 9