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: ['e', 'k', 's', 'd', 'l', '325', 'v', 'q', '481', 'p']

1, 2, 3, 4, 5, 8