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]: ['q', 'u', '199', 'v', '249']
[EX A]: 1, 2, 4, 9

[EX Q]: ['437', 'e', 'b', 'f', '203', 't', '5', '461', 'e', '367', '391', '81']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['265', 'g', '135', 's']
[EX A]:
1, 2, 3, 5, 6