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.
['B', '8851', '517', 'a', 'a', 'u', 'j', '8231', 'z', '3057', 'l', 'Y', 'U', '8531', '4879']