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:
['t', 'r', 'z']

Ex Output:
-1


Ex Input:
['487', '355', 'm', 's', '367', 'n', '203', 'x', 't', 'v', 'd', '251']

Ex Output:
0, 1, 2, 3, 4, 5, 6, 7, 8


Ex Input:
['77', '195', '469']

Ex Output:

1, 4, 5, 6, 7, 9