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: 20, 21, ['B', '4745', '5299', '1533', '8215', '3715', 'y', 'g', '6227', 'y', '7643', 'M', 'B', 's', 'P', '2485', '9277', 'k', '2699', '1785', 'S', '6363', 'r', '1959', '2451']

1785