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:
['257', '111', 'g', '277', '473', '105', 'x', '217']

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


Ex Input:
['z', 'z', '273']

Ex Output:
2, 3, 7


Ex Input:
['c', 'j', 'l', 'm', 'c', 'v', 't']

Ex Output:

-1