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: ['317', '221', 'h', '101', '453', '489']

SOLUTION: 0, 1, 2, 3, 4, 5, 7, 8, 9

PROBLEM: ['s', '95', 'j', '173', '437', '143', 'n', '357', 'w', '239', '219']

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

PROBLEM: ['q', '497', 'l', 'i', 'c', '139', 'd', 'a', 'l', 'b', 'r']

SOLUTION:
1, 3, 4, 7, 9