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: ['213', 'm', '347', '217', 'g', '207', '361', 'q']

SOLUTION: 0, 1, 2, 3, 4, 6, 7

PROBLEM: ['425', 'a', '351', 'v']

SOLUTION: 1, 2, 3, 4, 5

PROBLEM: ['143', 'i', '499', 't', '27']

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