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', 'k', 'j', '1', '375', 'e', 'd']

SOLUTION: 1, 3, 5, 7

PROBLEM: ['q', 'u']

SOLUTION: -1

PROBLEM: ['p', '307', 'd', '359', '383']

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

