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]: ['m', 'e', 'g']
[A]: -1


[Q]: ['v', 'i', 'g', 'h']
[A]: -1


[Q]: ['17', 'l', 'o', '387', 'v']
[A]:
1, 3, 7, 8