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.

Example Input: ['k', 'x', '299', 'a', 'y', '105', 's', '249', 'g', '439', 'k', '1', 'h', 'd', '43']
Example Output: 0, 1, 2, 3, 4, 5, 9

Example Input: ['e', 'o', 'c', 'j', 'g', '249', 's', 'b', 'f', '359', '107', 'i']
Example Output: 0, 1, 2, 3, 4, 5, 7, 9

Example Input: ['r', 'l', '371']
Example Output:
1, 3, 7