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]: ['385', 'b', 'c']
[EX A]: 3, 5, 8

[EX Q]: ['u', 'r']
[EX A]: -1

[EX Q]: ['83', 'm', '393', 't', '135']
[EX A]:
1, 3, 5, 8, 9