TASK DEFINITION: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to return the sum of all the numerical elements in the list A between the positions i and j (including positions i and j). Return 0 if no numerical element is present in the list between the given ranges. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
PROBLEM: 4, 5, ['3365', 'x', '3373', '8905', '1527', '9433', '2907', 'j', 'x', '7201', '307', '4507', '785', '6749', '4419', '2743']

SOLUTION: 10432

PROBLEM: 12, 17, ['3889', 'F', 'E', '8903', '2149', '2549', '5827', '7333', '1321', '3', 's', 'e', '2009', '711', 'Q', '7555', 'T', '8479', '8685', 'Y', 'W']

SOLUTION: 10275

PROBLEM: 11, 13, ['1769', '9363', '379', 'M', '2875', 'H', 'a', '7661', 'T', '4341', '135', '5465', '5979', 'v', 'H', '897', 'e', '725']

SOLUTION:
11579