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: ['r', '255', '185', '317', '165', '461', 'x', '55', 'd', 'j']

1, 2, 3, 4, 5, 6, 7, 8