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]: ['381', '129']
[A]: 1, 2, 3, 8, 9


[Q]: ['t', '493', 's', 'f', '279', 'f']
[A]: 2, 3, 4, 7, 9


[Q]: ['f', 'f', '149', '311', '331', 'l', 'u', '349', 'v', 'v', '417', '285']
[A]:
1, 2, 3, 4, 5, 7, 8, 9