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.

['n', '149', 'z', '37']
1, 3, 4, 7, 9

['379', '485', '415', '37', '221', '125', '245', '87', 'a']
1, 2, 3, 4, 5, 7, 8, 9

['187', 'e', 'v', 't', '415', '463', 'c', '71', 'j', 'n']

1, 3, 4, 5, 6, 7, 8