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.

['235', '17', 'g', '125', '455', 'h', 'u', 'u', 'y', '219', '129', 'q', 'u', 'r']
1, 2, 3, 4, 5, 7, 9

['h', '281', 'x', '471']
1, 2, 4, 7, 8

['129', 't', 'w', 'm']

1, 2, 9