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]: ['u', 'c', 'f', 'z', '51', '301', 'q', '275']
[EX A]: 0, 1, 2, 3, 5, 7

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

[EX Q]: ['a', 'a']
[EX A]:
-1