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.

['k', 'b', 'k', 'l', '441', 'b', '115', 'd', 'b', 'r', '115', 'k', 'a']
1, 4, 5

['q', 'p', 'y', 'p', 'k', 'r', '481', 'v']
1, 4, 8

['379', '475', 'q', '219', 'm']

1, 2, 3, 4, 5, 7, 9