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]: ['475', '19', 'k', '307', '417']
[A]: 0, 1, 3, 4, 5, 7, 9


[Q]: ['475', 's', '123', '389', 'y', 'm', 'v', '47', 'u', '479', '357', '279', '137', 'l', 'i']
[A]: 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['c', '317', 'z', 'z', 'h', '227', '439', 'x', 'f']
[A]:
1, 2, 3, 4, 7, 9