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]: ['447', '77', '337', 'i', '257', '477', 'l', 'm', '357', 'k', '293', '425', 's']
[EX A]: 2, 3, 4, 5, 7, 9

[EX Q]: ['101', '473', '25', 'i', '117']
[EX A]: 0, 1, 2, 3, 4, 5, 7

[EX Q]: ['33', 'h', 'u', 'e', '123', 'a']
[EX A]:
1, 2, 3