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: 3, 15, ['8815', 'w', '5613', 'm', '9515', '9741', 'O', 'U', '7197', '5237', 'M', '9899', '8289', 'l', '3', '9313', '4467', 'K', 'k', '637']

SOLUTION: 55494

PROBLEM: 4, 5, ['3365', 'x', '3373', '8905', '1527', '9433', '2907', 'j', 'x', '7201', '307', '4507', '785', '6749', '4419', '2743']

SOLUTION: 10432

PROBLEM: 1, 4, ['3429', 'n', '3321', 's', '5363', '361', 'x']

SOLUTION:
6750