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: ['311', '147', 'a', '149', 'h']

A: 1, 3, 4, 7, 9
****
Q: ['v', 'w', '125', 'r', 'a', '309', '259', 'c', 'a', 'c', 'w', '273', '279']

A: 0, 1, 2, 3, 5, 7, 9
****
Q: ['e', '299', 'l', '411', '257', '429', 'y', 'p']

A:
1, 2, 4, 5, 7, 9
****