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]: ['109', 't', '283', 'c', 'u', 'y', '251', 'x', '377', 'n', 's', 'd', 't', 'q', 'o']
[EX A]: 0, 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['149', '129', 'k']
[EX A]: 1, 2, 4, 9

[EX Q]: ['c', 'd']
[EX A]:
-1