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.

Q: ['d', '335', '23', '461', '497', 'p', '313']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['345', 'h', '9']

A: 3, 4, 5, 9
****
Q: ['t', 'h', 'r', '303', '67', '355', '325', 'e', 'l', 'e', '207', 'l']

A:
0, 2, 3, 5, 6, 7
****