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: ['499', '493', 'i', '87']

A: 3, 4, 7, 8, 9
****
Q: ['381', 'l', 'z', '323', 'x', '247', '11']

A: 1, 2, 3, 4, 7, 8
****
Q: ['n', '55', '55', '1', 'i', 'p', 'g', '349']

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