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: ['c', '155', '61']

A: 1, 5, 6
****
Q: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']

A: 0, 1, 2, 3, 4, 5, 6, 9
****
Q: ['c', 'z', '395', 'd', '473', '155', '441', 'o', '349', '313', 'r']

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