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]: ['j', '195', 'u', '55']
[A]: 1, 5, 9


[Q]: ['487', 'x']
[A]: 4, 7, 8


[Q]: ['143', '251', '339', '251', '295', '367', '19', 'y', 'j', 'l', 'd', '425', 's']
[A]:
1, 2, 3, 4, 5, 6, 7, 9