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.
5, 8, ['1529', 'v', '4921', 'G', '21', 'A', 'r', '1407', '6309', 'P', '691', 'J', 'u', '6591', 'x', 'n', 'r']