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: ['l', '201', 's', 'y', 'b', '395', '19']

A: 0, 1, 2, 3, 5, 9
****
Q: ['e', '325', '377', 'v', '35', 'n', '125', '195']

A: 1, 2, 3, 5, 7, 9
****
Q: ['s', 'c', 'w']

A:
-1
****