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: ['t', 'r', 'z']

A: -1
****
Q: ['219', '127', '449', 'u', 'g']

A: 1, 2, 4, 7, 9
****
Q: ['p', '385', 'l', 'o', 'g', '121', '451', '243']

A:
1, 2, 3, 4, 5, 8
****