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:
['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']

Ex Output:
2, 3, 4, 7, 9


Ex Input:
['361', '47', 'k', '33']

Ex Output:
1, 3, 4, 6, 7


Ex Input:
['s', 't', 'u', 'g', 'j', 'x']

Ex Output:

-1