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: ['185', '425']

A: 1, 2, 4, 5, 8
****
Q: ['279', 't', 'e', 'j', '437', '167', 's', 'n']

A: 1, 2, 3, 4, 6, 7, 9
****
Q: ['225', 'z', 'x', '39', 'a', 'o', 'y', '29', 'c', '51', '133', 'm']

A:
1, 2, 3, 5, 9
****