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]: ['r', 'u', '83', 'x', '155', '89', 'c', '391', '41', 'o', 'i', '161']
[A]: 1, 3, 4, 5, 6, 8, 9


[Q]: ['f', '463', '169', '175']
[A]: 1, 3, 4, 5, 6, 7, 9


[Q]: ['r', '135', 't', 'm', 'f', '329', '475', '243', 'z', 'q', '31', '141']
[A]:
1, 2, 3, 4, 5, 7, 9


