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: ['353', 'd', 'h', 'd']

SOLUTION: 3, 5

PROBLEM: ['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']

SOLUTION: 1, 3, 4, 7, 9

PROBLEM: ['g', '111', 'f', '135', 'j', '455', '457', '111', 'p', '379', '39', 'h', '481']

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