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]: ['357', '269', '105', '315', 'c', '301', 'v', '441', '415', 't', 'a', 'o', 'u', '23', 'n']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['w', '19', '61', 'j', 'o', 's', 'q', '391', '281', '491', '287']
[EX A]: 1, 2, 3, 4, 6, 7, 8, 9

[EX Q]: ['j', 'j', 'n', 'k', '179', '175', 'k', '397']
[EX A]:
1, 3, 5, 7, 9