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.

Ex Input:
['u', 'r']

Ex Output:
-1


Ex Input:
['v', '105', 'p', 'w', '295', '239', '453']

Ex Output:
0, 1, 2, 3, 4, 5, 9


Ex Input:
['259', '435', 'u', '173', '233']

Ex Output:

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