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: ['t', 'p', 'j', 'x', 'k', '295', '221', '261', '221', 'b', '431', '427']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['97', '147', 'j', 'm', 'c', '445']

A: 1, 4, 5, 7, 9
****
Q: ['j', 'i', '373', 'p', '335', '349', 'y', '487', 'w', 'k', '95', 'w', '207', 'z', 'w']

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