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: ['y', 'm', '121', 'h', 'm', '189', '117', '257', 'y', '181', '279', 'a', '453']

A: 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['t', '493', 's', 'f', '279', 'f']

A: 2, 3, 4, 7, 9
****
Q: ['309', 'v', 'e', 'a', '449', 's', 'x', 'y', '449']

A:
0, 3, 4, 9
****