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:
['k', '373', 'b', '305', 'i', 'n', 'z', 'm', 'c']

Ex Output:
0, 3, 5, 7


Ex Input:
['377', 'z', '421', '137', 't', 'v', 's', 'l']

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


Ex Input:
['423', '81', '39', 'w', 'q', 'w']

Ex Output:

1, 2, 3, 4, 8, 9