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: ['h', '281', 'x', '471']

A: 1, 2, 4, 7, 8
****
Q: ['367', 'j', 'p', '177', 'w', '367', '495', 'g', '253', '211', '385']

A: 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['g', 'x', 'x', '3']

A:
3
****