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.

['119', '189', 'k', 'e', '425', '21', '245']
1, 2, 4, 5, 8, 9

['v', 'r', '67', '49']
4, 6, 7, 9

['397', 'u', 'w', 'i', '133']

1, 3, 7, 9