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', 'x', '299', 'a', 'y', '105', 's', '249', 'g', '439', 'k', '1', 'h', 'd', '43']
[A]: 0, 1, 2, 3, 4, 5, 9


[Q]: ['i', '325', '117', 'k', 'y', 'x', '49', '349', '477', 'u', '435']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['339', 'g', '67', '267', 'r']
[A]:
2, 3, 6, 7, 9