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: 2, 9, ['S', 't', '243', '5691', '5695', 'Y', 'd', '8695', 'M', 'K', 'z', 'I', '7325', '8945', 'P', 'Q', 'I', 'N']

SOLUTION: 20324

PROBLEM: 1, 5, ['O', 'T', 'V', '9035', 'L', 't', 'I']

SOLUTION: 9035

PROBLEM: 1, 2, ['9249', '2995']

SOLUTION:
12244