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: ['f', '89', '63', '51', '465', 'u', 'd', '407', '399', '165', '343', 's', '79', 'l', 'u']

A: 0, 1, 3, 4, 5, 6, 7, 8, 9
****
Q: ['g', '169', '93', 'z', 'h', '493', 'r']

A: 1, 3, 4, 6, 9
****
Q: ['137', '7', 'w', 'x', 'n', 'w', '425', '71', '213']

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