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.

['445', '449']
4, 5, 9

['97', '147', 'j', 'm', 'c', '445']
1, 4, 5, 7, 9

['r', '119', '29', '71', '425', 'b', 'd']

1, 2, 4, 5, 7, 9

