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]: ['233', '339', '319']
[A]: 1, 2, 3, 9


[Q]: ['b', 'm', '471']
[A]: 1, 4, 7


[Q]: ['j', '219', '279', 'v', 'u', 'y', '357', 'h', '335', '411', 'm', 'x', 'n', 'p']
[A]:
1, 2, 3, 4, 5, 7, 9