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: ['159', '3', 'f', 'k', 'o', 'm']

A: 1, 3, 5, 9
****
Q: ['n', '149', 'z', '37']

A: 1, 3, 4, 7, 9
****
Q: ['165', '337', '371', '427', '365']

A:
1, 2, 3, 4, 5, 6, 7
****