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]: ['m', 'n', '481', 'a', '343', '19', 'l', 'l', '477', '71']
[A]: 1, 3, 4, 7, 8, 9


[Q]: ['11', '117', 'd', '7', 'u', 'y', 'a', 'o', '299', 'i']
[A]:
1, 2, 7, 9