Instructions: 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: ['145', 'c', '77', '147', '401', 'b', 'u', '19', 'g', '9', '1', 'd', 'b', 'z']
Output:
0, 1, 4, 5, 7, 9