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]: ['i', 'e', '17', 'q', '15', 'v']
[A]: 1, 5, 7


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


[Q]: ['201', 'i', '53', '261', 'e']
[A]:
0, 1, 2, 3, 5, 6