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.

[EX Q]: ['23', 'p', '409', '305', 'z', 'q', '295', '391']
[EX A]: 0, 1, 2, 3, 4, 5, 9

[EX Q]: ['49', 'r', '179', 'h', 'q', 'h', 'w', '187', '427', 'x', 'r']
[EX A]: 1, 2, 4, 7, 8, 9

[EX Q]: ['z', 't', 'p']
[EX A]:
-1