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: ['n', '149', 'z', '37']

A: 1, 3, 4, 7, 9
****
Q: ['p', '103', 'd', '411', 'f']

A: 0, 1, 3, 4
****
Q: ['e', '171', 'k', '381']

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