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: ['27', '199', '29', '419', 'o', 'r', 'z', 'v', 'j', 'g', '397']

1, 2, 3, 4, 7, 9