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: ['o', 'b', '393', '21', '81', 'd', '209', 't', '1', '317', '395', 'x']

0, 1, 2, 3, 5, 7, 8, 9