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: ['e', '313', '259', 'i', 'h']

SOLUTION: 1, 2, 3, 5, 9

PROBLEM: ['n', 'q', 'z', 'r', '41', '345', '115', '487', '273', 'q', '219', 'i', '23']

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

PROBLEM: ['363', 'w', '151', 'd']

SOLUTION:
1, 3, 5, 6