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: ['475', 'j', '19', 'j', '325']

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

PROBLEM: ['i', 'z', '131', '449', '141', 's']

SOLUTION: 1, 3, 4, 9

PROBLEM: ['g', 'e']

SOLUTION:
-1