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.

['477', 'a', 'n', 'r', '457', 'g', 'c']
4, 5, 7

['93', '277', '373', 'z', '9', 'r', '251', '207', 'v', 'n']
0, 1, 2, 3, 5, 7, 9

['x', 'j', 'q', 'g', '169', 'f', '219', '97', 's', 'c']

1, 2, 6, 7, 9