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: ['z', 'x', 'y', '21', '193', 'f', '391', 'j', '103', '99', '99', 'b', 'm', '5', 'p']
Output:
0, 1, 2, 3, 5, 9