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: ['z', '209']

A: 0, 2, 9
****
Q: ['221', '191', 'w', 'l', 'h', 'a']

A: 1, 2, 9
****
Q: ['c', 'f', '479', 'o', '227', '123', '287', '127', 'h']

A:
1, 2, 3, 4, 7, 8, 9
****