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]: ['269', 'a', 'x', '395', '477', 'e', 'd', 'o', '129', 'j', '93', '237', '417', 'f']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['173', 'i', 'w', '425', '27', 'd']
[EX A]: 1, 2, 3, 4, 5, 7

[EX Q]: ['e', 'y', 'z', 'j', 'p', '193', 'q', 'a', 'k', '427', 'q', 'x', '117', 'j']
[EX A]:
1, 2, 3, 4, 7, 9