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: ['285', 'w', '37', '471', 'y', '435', '27', '415', 'f', 's', '27', 'b']

A: 1, 2, 3, 4, 5, 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: ['261', 'y', 'v', '249']

A:
1, 2, 4, 6, 9
****