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]: ['187', '461', 'b']
[A]: 1, 4, 6, 7, 8


[Q]: ['43', 'n', 's', '453', 'c', '205']
[A]: 0, 2, 3, 4, 5


[Q]: ['397', '469', '103', 'd', '489', 'd', 'b', 'h', 'l', '143', '449', '465']
[A]:
0, 1, 3, 4, 5, 6, 7, 8, 9