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.
['6415', '8735', '9177', '4415', '321', '7561', 'f', 'U', '8313', '5563', '7611', '2965', 'N', 'k', '5255', '5195', 'I', 'k', '9935', 'I', 'b', '4865', '4327', '3503']