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:
['357', 'c', 'f', '3', 'q', 'w', 'm', 'l', '137', 'k']

Ex Output:
1, 3, 5, 7


Ex Input:
['109', 'b']

Ex Output:
0, 1, 9


Ex Input:
['t', 'g', '97']

Ex Output:

7, 9