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: ['473', '357', 'i', 'j', '299', 's', '495', '165', 'o', 'l', 'x', 'v', '1', 'o', '469']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['271', '9', 'v', '93', 'f', 'd']

A: 1, 2, 3, 7, 9
****
Q: ['o', 'y', '447', '295', '17', '271']

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