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: ['23', 'p', '409', '305', 'z', 'q', '295', '391']

SOLUTION: 0, 1, 2, 3, 4, 5, 9

PROBLEM: ['h', '281', '113', '119', 'j', '245', 'i', '121', '439']

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

PROBLEM: ['t', 'z']

SOLUTION:
-1