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]: ['u', 'r']
[A]: -1


[Q]: ['233', '339', '319']
[A]: 1, 2, 3, 9


[Q]: ['389', 'f']
[A]:
3, 8, 9


