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: ['z', 'b', 'c', 'l', '453', 'h', '215', '447', '487', 'p', 'y', 'v']

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

PROBLEM: ['69', '307', 'l', 'j', '167', 'o', '427', 'j']

SOLUTION: 0, 1, 2, 3, 4, 6, 7, 9

PROBLEM: ['405', '287', '273', '243', '95', '111', '171', '95', 'q', 'a', '253', 'e']

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