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: ['w', 'b', 'w', 'm', 'j', 'd', 'q', '47', '221', 'b', '201', 'f']

A: 0, 1, 2, 4, 7
****
Q: ['1', 'm']

A: 1
****
Q: ['h', '251', 'c', 'y', 'k', 'k', '175']

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