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: 13, 18, ['3475', 'o', '3353', '3225', 'I', '3297', 'Z', 'i', '7995', '5299', '7275', '3123', '1975', '4599', 's', '2489', '8733', 'N', '4563']

SOLUTION: 17796

PROBLEM: 5, 16, ['t', 'r', 'O', 'q', 'B', '6327', 'f', 'R', 'H', '4429', 'o', '5347', 'U', 'h', '7067', '237', 'i', 'k', 'K', '461', 'L', '4105', 'i', '6483']

SOLUTION: 23407

PROBLEM: 1, 1, ['a', 'X']

SOLUTION:
0