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:
['i', 'z', '131', '449', '141', 's']

Ex Output:
1, 3, 4, 9


Ex Input:
['1', 'm']

Ex Output:
1


Ex Input:
['283', 'f', '77', 'b', '37', 'w', 'i', 'w']

Ex Output:

2, 3, 7, 8