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:
['i', '249', '287']

Ex Output:
2, 4, 7, 8, 9


Ex Input:
['v', 'i', 'g', 'h']

Ex Output:
-1


Ex Input:
['k', 'p', '45', 'h', '493', 'p', 'v', '163', 'k']

Ex Output:

1, 3, 4, 5, 6, 9