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: ['s', 'd']

A: -1
****
Q: ['499', '493', 'i', '87']

A: 3, 4, 7, 8, 9
****
Q: ['377', '343', 'x', 'x', '345', 'o', '291', '333', '137', '13', 'w']

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