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:
['247', 's', 'y', 'c', '421']

Ex Output:
1, 2, 4, 7


Ex Input:
['s', 'y', '133', 'c', '415', 'p']

Ex Output:
1, 3, 4, 5


Ex Input:
['f', 'z', '61']

Ex Output:

1, 6