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: ['359', '233', '455', '449', 'h']

A: 2, 3, 4, 5, 9
****
Q: ['239', 's', 'h', 'w', '131', 'i', 'x']

A: 1, 2, 3, 9
****
Q: ['i', '473', 'c', 'r', 'q', 'j', 'w', '39']

A:
3, 4, 7, 9
****