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: 4, 12, ['3507', 'x', 'r', 'Y', '9979', 'K', '8669', 'i', 'a', '463', 'E', '1397', '2903', 'x', '4933', '9819', 'C', 'k', 'r', 'T', '1889']

20508