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, 6, ['7073', '3047', 'O', 'c', 'u', 'G']

SOLUTION: 0

PROBLEM: 3, 5, ['c', '9619', 'e', 'A', '5045', '2453', 'L', '553', '5493', '5657']

SOLUTION: 5045

PROBLEM: 1, 2, ['H', '8767']

SOLUTION:
8767

