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: ['w', 'b', 'w', 'm', 'j', 'd', 'q', '47', '221', 'b', '201', 'f']

A: 0, 1, 2, 4, 7
****
Q: ['425', 'x', 'u', 'f', 'v', '481', 'm', 'y', '159', '1']

A: 1, 2, 4, 5, 8, 9
****
Q: ['c', 'c', '241', '115', '107', '73']

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