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: ['k', '373', 'b', '305', 'i', 'n', 'z', 'm', 'c']

A: 0, 3, 5, 7
****
Q: ['205', '347', '423', 'm', '363', 'u', 'g']

A: 0, 2, 3, 4, 5, 6, 7
****
Q: ['e', 't', '343', 'q', '257', 'l', 'g', 'z', '497', 'e', '119', 'e', '21']

A:
1, 2, 3, 4, 5, 7, 9
****