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: ['j', '259', 'r', '363', '149', 's', 'p', 'l', '271', '93', '205', 's', 'r', 'v', 'z']

SOLUTION: 0, 1, 2, 3, 4, 5, 6, 7, 9

PROBLEM: ['87', '139', 'y', '129', '255', '227', '103', 'j']

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

PROBLEM: ['u', '227', 'l', '191', 'l', '327', 'o', 'g', 'x', '259', '371', 'i', '299', '459', '89']

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