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.
15, 18, ['E', '5741', 'o', '2051', 'g', 'y', 'b', 'Q', '6259', 'X', 'm', '2321', 'K', 'r', 'G', '7979', 'B', '903', '3893']