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: ['385', 'k', 'a', 't', 'o', 'b', 'g', 'u', '319', 'e', '315', '365']

A: 1, 3, 5, 6, 8, 9
****
Q: ['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']

A: 1, 3, 4, 7, 9
****
Q: ['l', 's', 'w', '307', '95', 'm', 'k', '205', 's']

A:
0, 2, 3, 5, 7, 9
****