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:
['483', '409', '129', 'u', '167', '275', 'p', '163', 'r', 'q', 'i', '481', 'j', '271']

Ex Output:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Ex Input:
['437', '377']

Ex Output:
3, 4, 7


Ex Input:
['r', '171', 'p', '299', 'u', 'n', '421', '331', 'h', '21', 'h', 'x', '435', '327', '373']

Ex Output:

1, 2, 3, 4, 5, 7, 9