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]: ['k', 'k', 'o', 'c', 'p', '301', 'o']
[A]: 0, 1, 3


[Q]: ['d', '71', '65', '177', 'k']
[A]: 1, 5, 6, 7


[Q]: ['473', 'b']
[A]:
3, 4, 7