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: ['25', 'b', '455', 'n', '305', '271']

A: 0, 1, 2, 3, 4, 5, 7
****
Q: ['93', 'z', '495', 'l', '65', '233', 'h', 'm', 'f', '249', 'w', '35', '337', 'j', 'm']

A: 2, 3, 4, 5, 6, 7, 9
****
Q: ['291', '445', 'q', 't']

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