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: ['233', '37', '221', 'n', 'j', 'y', '381', '175']

A: 1, 2, 3, 5, 7, 8
****
Q: ['185', '425']

A: 1, 2, 4, 5, 8
****
Q: ['e', 'n', '45', '155', 'd', 'x', 'z', '343', 'b', '415', '371']

A:
1, 3, 4, 5, 7
****