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.

['215', '391', '251', '177']
1, 2, 3, 5, 7, 9

['43', 'd']
3, 4

['361', 'h', '459']

1, 3, 4, 5, 6, 9