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: ['73', '199', '189', '27', 'm', '101', '61', '113', 'y', '169']

A: 0, 1, 2, 3, 6, 7, 8, 9
****
Q: ['1', 'm']

A: 1
****
Q: ['d', 'n', '441', '323', 'n', '463', 'b', 'z', 'p', 'p']

A:
1, 2, 3, 4, 6
****