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, ['t', '9215', 'K', 'Q', 'w']

SOLUTION: 0

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

SOLUTION: 25185

PROBLEM: 2, 15, ['k', 'q', 'i', '4593', '471', 'l', '8685', '5649', '2573', '5229', 'w', 'Z', 'D', '1325', '613', 'w', 'M', '4613']

SOLUTION:
29138