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]: ['149', '129', 'k']
[A]: 1, 2, 4, 9


[Q]: ['h', 't', '371', 'e', '153', 'b']
[A]: 1, 3, 5, 7


[Q]: ['53', 't', 'f']
[A]:
3, 5