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: 5, 20, ['v', '2017', 'T', '3807', '6813', 'N', '6417', 's', 'R', 'K', '343', '4257', '5349', '2807', 'k', '8443', 'c', '5433', 'F', '5245', '9729']

45107