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.

['q', 'u']
-1

['475', 'j', '19', 'j', '325']
1, 2, 3, 4, 5, 7, 9

['363', 'w', '493', '93', 'n', 'v']

3, 4, 6, 9

