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]: ['m', 'e', 'g']
[A]: -1


[Q]: ['h', '475', 'x', '53', '461', 'c']
[A]: 1, 3, 4, 5, 6, 7


[Q]: ['s', '39', 'r', 'z', '125', 'y', '337', 'e', '137', 'w']
[A]:
1, 2, 3, 5, 7, 9