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.
['1827', 'P', '4581', '8335', 'j', '5763', 'x', '9011', 'R', 'i', 'w', 'Z', 'p', '2467', 'o', '3187', 'K', '5045', 'V', '8743', '8421', 'O']