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', '493', 's', 'f', '279', 'f']

A: 2, 3, 4, 7, 9
****
Q: ['h', '309', 'q', 'w', '367', '245', '181', 'w', '377', '33']

A: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['q', '387', '389', '19', 'g', 'j', 'm', 'p', '347']

A:
1, 3, 4, 7, 8, 9
****