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: ['m', '221', '261', '175', '183', '359', 'h', '157', 'p', 'r', 'c', 'g', '193', 's']

SOLUTION: 1, 2, 3, 5, 6, 7, 8, 9

PROBLEM: ['h', 'i', 'e', '319', 'g', '187', '395', 'f', '327', 'y']

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

PROBLEM: ['a', '191', '11', 'p', '303', '93', 'o', 'n', '293', 'v', '15', 'i', 'v', 'c']

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