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]: ['99', 'p', 'v', '49', 's', '279', 'v', '287', '355', 'o', '131', 'd', 'b']
[A]: 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['u', 'z', 'p', '99', 'b']
[A]: 9


[Q]: ['353', '231', 'w', 't', 'j', 'r', 'm', '455', 'i', '281', '215']
[A]:
1, 2, 3, 4, 5, 8