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: ['85', '53', '43', 'j', 'e', '443', '231', 'z', 'f', 'v', '235', '377']

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

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

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

PROBLEM: ['185', 'v', 's', 'l', 'f', 'm', '191', 'h', '285', 'e', 'o', 't']

SOLUTION:
1, 2, 5, 8, 9