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]: ['469', 'y', 'j', 'u', '475', 'k', 'k']
[A]: 4, 5, 6, 7, 9


[Q]: ['q', '17', '497', '69', 'n', '25', 'a', 'j', 'c', 'j', '303', '453', 'k', 'h']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['297', '459', 'o', 'o']
[A]:
2, 4, 5, 7, 9