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: ['s', '443', '239', 't', '99']

A: 2, 3, 4, 9
****
Q: ['f', '73', 'k', '333', '345', 'e', 'x', 'j']

A: 3, 4, 5, 7
****
Q: ['q', 'n', '87', 'y', '445', '169', 'n', '237', 's', 'z', 'm', '209', '29', 't', 'b']

A:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
****