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: ['221', '191', 'w', 'l', 'h', 'a']

A: 1, 2, 9
****
Q: ['235', '17', 'g', '125', '455', 'h', 'u', 'u', 'y', '219', '129', 'q', 'u', 'r']

A: 1, 2, 3, 4, 5, 7, 9
****
Q: ['427', '485', '187', 'm', 'd', '63', 'g', 'm']

A:
1, 2, 3, 4, 5, 6, 7, 8
****