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: ['425', 'a', '351', 'v']

A: 1, 2, 3, 4, 5
****
Q: ['z', '271', 'h', 'm', '365']

A: 1, 2, 3, 5, 6, 7
****
Q: ['g', 't', 's', 'y', '265', '351']

A:
1, 2, 3, 5, 6
****