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

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

PROBLEM: ['411', '367']

SOLUTION: 1, 3, 4, 6, 7

PROBLEM: ['f', '363', '211', 'i', '185', '277', '357', 'c', '275', '393', 'r']

SOLUTION:
1, 2, 3, 5, 6, 7, 8, 9