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]: ['87', '353', '329', '163', 'i', 'd', '287']
[EX A]: 1, 2, 3, 5, 6, 7, 8, 9

[EX Q]: ['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']
[EX A]: 2, 3, 4, 7, 9

[EX Q]: ['i', 'y']
[EX A]:
-1