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, ['c', '9619', 'e', 'A', '5045', '2453', 'L', '553', '5493', '5657']

SOLUTION: 5045

PROBLEM: 12, 19, ['x', 'Z', 'm', '3819', 'D', 'P', '4815', 'D', 'V', '1409', 'u', 'N', 'E', 'A', 'v', 'k', '553', '1869', '6203', '803', '4061']

SOLUTION: 8625

PROBLEM: 4, 5, ['v', '317', 's', 'c', '7547', '9611', '4985']

SOLUTION:
7547