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:['159', '11', '109', 'j', 'r', '395', 'e', '417', 'e', 'g', '345', '449']
Solution:
0, 1, 3, 4, 5, 7, 9