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]: ['s', 'y', '133', 'c', '415', 'p']
[EX A]: 1, 3, 4, 5

[EX Q]: ['t', '493', 's', 'f', '279', 'f']
[EX A]: 2, 3, 4, 7, 9

[EX Q]: ['t', 'p', 'u', 'a']
[EX A]:
-1