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: ['i', 'f', '109']

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

A: 1, 2, 3, 5, 7, 9
****
Q: ['a', 'e', '479', '375', '499', 'e', 'r', '221']

A:
1, 2, 3, 4, 5, 7, 9
****