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: ['f', 'u', '349', '275', 'm', '41', '283', 'z', 'd', 'a', 'd', '319', '135']

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

PROBLEM: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']

SOLUTION: 1, 2, 3, 4, 5, 6, 7, 8

PROBLEM: ['s', 'd', '337', 's', 'v', 'w', '267', '447', 'u', 'j']

SOLUTION:
2, 3, 4, 6, 7