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]: ['a', '441', '227', 'j', '13', '277', 'f', 'o']
[A]: 1, 2, 3, 4, 7


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


[Q]: ['k', '225', '75', 'x']
[A]:
2, 5, 7