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: 9, 15, ['9375', '9663', 'i', '9607', '4257', '9757', 'r', '937', 'm', 's', '9193', '2269', '4627', '2051', '7045']

SOLUTION: 25185

PROBLEM: 2, 10, ['2797', 'm', '439', '5677', '6719', '1587', 'I', 'I', 'w', '8483', '7341', '341', 'H', 'K', '7727', '4467', 'L']

SOLUTION: 22905

PROBLEM: 10, 11, ['5121', 'm', 'O', 'b', '677', 'F', '6983', 'A', '9765', 'P', 'J', '2647']

SOLUTION:
0