Detailed Instructions: 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: ['437', 'm', 'd', 'v', '185', 's', '235', '385', 'h', 'p', '235', 'u', 'm', 'w', '299']
A:
1, 2, 3, 4, 5, 7, 8, 9