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: ['359', '233', '455', '449', 'h']

SOLUTION: 2, 3, 4, 5, 9

PROBLEM: ['h', 'e', 'v']

SOLUTION: -1

PROBLEM: ['207', 'w', '317', '241', 'j', '443']

SOLUTION:
0, 1, 2, 3, 4, 7

