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]: ['387', '7', '93', '105', '181']
[A]: 0, 1, 3, 5, 7, 8, 9


[Q]: ['229', '369', 'c', '7', 'f', 'h', '455', 't', '249', 's']
[A]: 2, 3, 4, 5, 6, 7, 9


[Q]: ['f', '87', '301', '337', 'z', 'r', 'k', 'p']
[A]:
0, 1, 3, 7, 8