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: ['355', 'h', '287', 's', 'o', '497', '219']

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

PROBLEM: ['119', '189', 'k', 'e', '425', '21', '245']

SOLUTION: 1, 2, 4, 5, 8, 9

PROBLEM: ['f', '381', 'l', '343', 'v', '291', '83', 'd', 'y', '385', '289', '245', '31', '33']

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