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.
['4781', '7865', 'z', 'Y', '5135', 'S', 'O', '1527', '4319', 'a', 'y', 'u', 'M', '9181', 'x', '71', '4755', '443', '2405', 'n', 'U', 'O', '4721', '6391', 'W', '1849', 'T', 'Q', '6461', 'M', '1387', 'r']