Definition: 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.
Input: ['s', '95', 'j', '173', '437', '143', 'n', '357', 'w', '239', '219']

1, 2, 3, 4, 5, 7, 9