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]: ['i', 'z', '131', '449', '141', 's']
[A]: 1, 3, 4, 9


[Q]: ['s', '391', 'z', '67', '371', '195', '77', '373', 'g', '249', 'm']
[A]: 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['x', '387', '237', 'n', 'd', 'l', '63', '407', 'b']
[A]:
0, 2, 3, 4, 6, 7, 8