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]: ['s', 'd']
[EX A]: -1

[EX Q]: ['i', '325', '117', 'k', 'y', 'x', '49', '349', '477', 'u', '435']
[EX A]: 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['c', '397', '33', 'f']
[EX A]:
3, 7, 9