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.

[EX Q]: ['279', 'y', '391', '33', '281', '113', 'd', 'v']
[EX A]: 1, 2, 3, 7, 8, 9

[EX Q]: ['289', 'f', 'y', 'n', '271', '223', 'v', 'p', 'v', 'w', '7', 'i', '195']
[EX A]: 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['r', 'n', 'd', '459', '7', 't', '75', '177', 'g', 's', '41', 'r', 'c']
[EX A]:
1, 4, 5, 7, 9