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: ['n', '319', 's', '325', '177', '161', '43', 'g', 'o', '59', 'w', 'y', 'g', 'm']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['l', 'n', '477', '227', '71', 'p', 'q', '277', '135', 'i']

A: 1, 2, 3, 4, 5, 7
****
Q: ['277', '415', 'n', 'z', 'h', '5', 't', '239', '9', 'k', '47']

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