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: ['61', '417', '437', '489', '383', 'n', '11', 'o', 'a', 'v', '37', 'q', '317']

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

PROBLEM: ['117', '247', '49', '63']

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

PROBLEM: ['265', 'k', '427', 'u', 'n', '323', 'q', '245', '195']

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