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.
['u', 'J', '3877', 'b', 'c', '6933', 'X', 'g', '7937', '7117', 'z', 'y', 'D', '6277', 'J', 'I', 'K', '4135']