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.
Problem:['415', 'y', '213', '49', '409', '439', '321', 's', '219']
Solution:
0, 1, 2, 3, 4, 5, 9