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]: ['311', '147', 'a', '149', 'h']
[A]: 1, 3, 4, 7, 9


[Q]: ['129', '373', '461', 'h', 'r', '163', '361', '483', '463', 'e', 'z', 'l']
[A]: 1, 2, 3, 4, 6, 7, 8, 9


[Q]: ['65', '419', '237', '171', '95', '181', '355', '453', '319', 'y', 'y']
[A]:
1, 2, 3, 4, 5, 6, 7, 8, 9