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.
['z', '8455', 's', 'r', '3631', 'a', 'L', 'W', '2399', '2565', '7075', '9641', 'o', 'Y', 'i', 'x', '4809', 'O', 'A', '6503', '3005', '3039', '6835']