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: 3, 5, ['a', 'q', 'a', '4295', 'z', '675', '3975', 'P', 'e', '4231', '2547', 'V', 'S', '5285', 'Y', 'J']

SOLUTION: 4295

PROBLEM: 2, 4, ['X', 'o', '8807', 'r', 'q', '825']

SOLUTION: 8807

PROBLEM: 2, 8, ['4453', '4081', 'e', '7519', 's', 'Z', '711', 'O', '1183', 'K']

SOLUTION:
12311