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]: ['357', 'c', 'f', '3', 'q', 'w', 'm', 'l', '137', 'k']
[A]: 1, 3, 5, 7


[Q]: ['213', '321', 'z']
[A]: 1, 2, 3


[Q]: ['279', 'r', 'o']
[A]:
2, 7, 9