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: ['l', '283', '171', 'q', '465', 'u', '325', 'd', 'j', '349', '351', '229', 'z']

SOLUTION: 1, 2, 3, 4, 5, 6, 7, 8, 9

PROBLEM: ['b', '343', '149', 'h', 'w', 'j', 'd', 'r', '461', 'q', '265', '329', '499', 'r', '291']

SOLUTION: 1, 2, 3, 4, 5, 6, 9

PROBLEM: ['w', '73', '271', 'p', '201', 'n', '353', '155', 'p', '205', '65', '133', 'm']

SOLUTION:
0, 1, 2, 3, 5, 6, 7