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: ['201', '161', 'b', 'i', '19', 'm', 'z', '299', 'y', '45', 'u']

0, 1, 2, 4, 5, 6, 9