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: ['x', '343', '391', '381', 'q', '317', '403', '89', '271']

A: 0, 1, 2, 3, 4, 7, 8, 9
****
Q: ['k', 'x', '299', 'a', 'y', '105', 's', '249', 'g', '439', 'k', '1', 'h', 'd', '43']

A: 0, 1, 2, 3, 4, 5, 9
****
Q: ['263', '481', 'a', 'y', '99', 'm', 'b', '175', 'b', 'f', 'g', '189']

A:
1, 2, 3, 4, 5, 6, 7, 8, 9
****