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]: ['411', '367']
[EX A]: 1, 3, 4, 6, 7

[EX Q]: ['j', 'k']
[EX A]: -1

[EX Q]: ['401', 'a', '273', 'c', '117', 'x', 'b', 'h', 's', 'v']
[EX A]:
0, 1, 2, 3, 4, 7