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: ['163', '375', 'e', 'g', '115', '445', 'c', '393', 'm', '59']

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

PROBLEM: ['y', 'x', 'z', '153', '93', 't', '85', '337', '333', 'i', '53', '245', '353', 'm', 'a']

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

PROBLEM: ['u', 'l', 'j', 'w', '333', '151']

SOLUTION:
1, 3, 5