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: ['u', '341', '151', '1', '157', '211', '189']

A: 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['l', '283', '171', 'q', '465', 'u', '325', 'd', 'j', '349', '351', '229', 'z']

A: 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['j', '439', '491', '391', 'u', 'c', 'v', 'k', 'u', '167', '327', 'j', '139', 'z']

A:
1, 2, 3, 4, 6, 7, 9
****