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.
Example: ['238', 'h', '92', 'U', '2799']
Example solution: 3
Example explanation: Here, the numbers in the input list are '238', '92' and '2799', hence their count is 3.

Problem: ['2525', 'a', '7209', 'I', '2721', '8425', '3535', '7257', '8125', '9071', 'K', 'u', '2231', '2051', 'O', '4087', 'z', 'N', '3851', 'Y', 'D', '6451', '1437', 'A', '8007', 'n', '6803', '6367', '1989', 'm']

Solution: 18