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.

Example input: ['q', '31', 'a', 'd', '53', '85', 'p', '77']
Example output: 1, 3, 5, 7, 8
Example explanation: Here, the numbers in the list are '31', '53', '85' and '77', and the unique digits used in the list are '1, 3, 5, 7, 8' in ascending order.
Q: ['451', '291', 'k', 'j']
A:
1, 2, 4, 5, 9