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.

['475', '19', 'k', '307', '417']
0, 1, 3, 4, 5, 7, 9

['y', 'b']
-1

['497', '247', 'v', '327', '237', '257', '475', 's', '335', 'k']

2, 3, 4, 5, 7, 9