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]: ['459', 'd', '473', 'i', 'l', 's']
[EX A]: 3, 4, 5, 7, 9

[EX Q]: ['y', 'x', 'z', '153', '93', 't', '85', '337', '333', 'i', '53', '245', '353', 'm', 'a']
[EX A]: 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['b', 'n']
[EX A]:
-1