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]: ['i', 'f', '409', 'c', '83']
[EX A]: 0, 3, 4, 8, 9

[EX Q]: ['397', 'x', 'e', '179', '105', '381']
[EX A]: 0, 1, 3, 5, 7, 8, 9

[EX Q]: ['43', 'b', '309', 'v']
[EX A]:
0, 3, 4, 9