TASK 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.
PROBLEM: ['j', 'v', 'q', '393', 'z', 'l', 'g', 'q', '193']

SOLUTION: 1, 3, 9

PROBLEM: ['323', '243', '385', 'z', '345', 'v', '359', 'e', '215', '417', 'g', '445', '145', '413']

SOLUTION: 1, 2, 3, 4, 5, 7, 8, 9

PROBLEM: ['407', '9', '395', '377', 'y', '87', 'u', '45', 'a', '65', '3', '119', 'q']

SOLUTION:
0, 1, 3, 4, 5, 6, 7, 8, 9