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: ['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']

A: 2, 3, 4, 7, 9
****
Q: ['119', '189', 'k', 'e', '425', '21', '245']

A: 1, 2, 4, 5, 8, 9
****
Q: ['c', 'g', 'e', '275', 'c', 'e', 'i', 'h', '151', 's', '387', 'd', 'n', '155', 'x']

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