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: ['49', 'r', '179', 'h', 'q', 'h', 'w', '187', '427', 'x', 'r']

A: 1, 2, 4, 7, 8, 9
****
Q: ['269', 'a', 'x', '395', '477', 'e', 'd', 'o', '129', 'j', '93', '237', '417', 'f']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['441', '65', 'l', 'd', 'm', 'd', '241']

A:
1, 2, 4, 5, 6
****