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: ['493', '241', '239', 'g', 'q', '319', '49', '245']

A: 1, 2, 3, 4, 5, 9
****
Q: ['229', 'x', '49', 'p', '73', '77', '337', '497']

A: 2, 3, 4, 7, 9
****
Q: ['363', '455']

A:
3, 4, 5, 6
****