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]: ['439', '443', '175', 'e', 'm', '361', 'd']
[EX A]: 1, 3, 4, 5, 6, 7, 9

[EX Q]: ['473', '357', 'i', 'j', '299', 's', '495', '165', 'o', 'l', 'x', 'v', '1', 'o', '469']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['a', 'z', '89', 'a', 'z', '285', 'r', 'x', '239', 'z']
[EX A]:
2, 3, 5, 8, 9