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: ['479', 's', 'g']

A: 4, 7, 9
****
Q: ['j', '463', 'z', '35', 'w', '191', '333', 'a']

A: 1, 3, 4, 5, 6, 9
****
Q: ['233', '37', '221', 'n', 'j', 'y', '381', '175']

A:
1, 2, 3, 5, 7, 8
****