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]: ['43', '479', '317', 'w', '475', '255', '3', 'x']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['401', 'a', '273', 'c', '117', 'x', 'b', 'h', 's', 'v']
[A]: 0, 1, 2, 3, 4, 7


[Q]: ['1', 't', '121', 'f', 'p']
[A]:
1, 2