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:
['343', 'c', '7', '271', 'm', '151', 'd', 'n', '305', 'y', 'w', '255']

Ex Output:
0, 1, 2, 3, 4, 5, 7


Ex Input:
['o', 'k', 'i']

Ex Output:
-1


Ex Input:
['121', 'w', '479', 'n', 't', 'c', 'm', 't', '287']

Ex Output:

1, 2, 4, 7, 8, 9