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: ['73', '215', '389', '381', 'e', 'v', 'j', 'l', 'r']

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

PROBLEM: ['113', 'r', 'f', 'w', 'x', '211', 'j']

SOLUTION:
1, 2, 3