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: ['c', '155', '61']

A: 1, 5, 6
****
Q: ['119', '189', 'k', 'e', '425', '21', '245']

A: 1, 2, 4, 5, 8, 9
****
Q: ['115', 'p', '117', '105']

A:
0, 1, 5, 7
****