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: ['63', 'd', 'd', 'h', 'p', 'j', 'c', '11', 'p', '405', 'k', '59', 'p']

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

PROBLEM: ['65', '195', 'k', '231', 'v', '359', '339', 'h', '405', '359', 'j']

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

PROBLEM: ['b', '131', '419', 'f', '125', 'u', '495', '263', 'x', 'z', '461', 'i', '381', '445']

SOLUTION:
1, 2, 3, 4, 5, 6, 8, 9