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.
21, 23, ['R', '3323', '3277', '1165', '3969', '2671', '77', 'P', 'G', 't', '5879', 'a', '7017', '3839', 'j', '7167', '7811', 'w', 'm', '3811', 'a', '6159', 'f']