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: ['r', 'u', '83', 'x', '155', '89', 'c', '391', '41', 'o', 'i', '161']

A: 1, 3, 4, 5, 6, 8, 9
****
Q: ['x', '91', 'q', '417', '385', '455', '393', 'm', 's', 'c', '91', '71', 'n']

A: 1, 3, 4, 5, 7, 8, 9
****
Q: ['445', 'w']

A:
4, 5
****