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:['339', '283', 'c', 'm', 'b', '41', 'f', 'i', '291', 'f', 'k', 'v', '465', '309', '233']
Solution:
0, 1, 2, 3, 4, 5, 6, 8, 9