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.
4, 12, ['w', 'C', '5877', 'W', 'L', '7581', 'L', '909', 'Q', 'a', 'v', 'W', 'R', '4779', '6749', '337', '4719', 'c', '2315', '5855', '6631']