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.
Input: 3, 20, ['w', 'a', 'J', 'U', 'b', '3561', 'G', '575', 'G', 'd', '1393', 'H', 'p', 'C', '9707', '5383', '9723', '4643', 'r', 'H', '8527', '1971']

34985