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: 1, 2, ['8235', 's']

SOLUTION: 8235

PROBLEM: 7, 12, ['3713', 'N', '7191', '73', '4595', '6537', 'H', 'v', 'H', '8531', 'k', 'H', 's', 'x', 'R', 'd', '507', 'C', '9649', '8875', '7931']

SOLUTION: 8531

PROBLEM: 3, 8, ['K', '8981', 'G', 'B', '2775', '9519', 'b', '9783', '5721', 'N', 'I', '1203', '4865', '9981', 'c', '1145', 'H', 'A', 'E', 'J', 'R', '8289', 'q', 'S', '5437', 'd', 'I']

SOLUTION:
22077