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]: ['251', '173', '301', '339', '267', 'p', '347']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['x', '325', 'i', 'n', 'i', 'w', 't']
[A]: 2, 3, 5


[Q]: ['465', 'r', 't', 'k', 'h', '499', '149']
[A]:
1, 4, 5, 6, 9