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, 21, ['R', '7377', 'G', 'i', 'b', '9617', '7157', '7049', '5255', '7581', '2415', '5021', 'g', 'e', '3097', 'Y', 'z', '7989', '5811', 'k', 'o']