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: ['j', '131', 'e', 'c', '149', '325', 'h', 'l', 'i', 'q', '151']

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

PROBLEM: ['h', 'l', 'x', 'v', 'v', '413', 'p', '45', '105', '183', 'p', 'k']

SOLUTION: 0, 1, 3, 4, 5, 8

PROBLEM: ['97', '153', '51', '117', 'l', '247', '251', '463', '461', 'b', 'g', '169', 'k']

SOLUTION:
1, 2, 3, 4, 5, 6, 7, 9