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: ['e', 'o', 'c', 'j', 'g', '249', 's', 'b', 'f', '359', '107', 'i']

A: 0, 1, 2, 3, 4, 5, 7, 9
****
Q: ['229', 'x', '49', 'p', '73', '77', '337', '497']

A: 2, 3, 4, 7, 9
****
Q: ['i', 'x', '3', '357', '53', '107', '421', 'm', 'l', 'j', '185', 'y', 's', '459', '147']

A:
0, 1, 2, 3, 4, 5, 7, 8, 9
****
