In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['251', '5865', 'P', 'p', 'Q', '4499', '6071', '7699', 'J', 'f', 'z', 'C', '3165', 'a', '4607', 's', '9275', 'M', 'C', '8921', '4379', 'k', 'Q', 'K', 'Z', 'l', '4803', '9959', '4531', 'O', '5247', '821', 'R', '2537', 'i', '3415']