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.
['1021', 'u', '6543', 'D', '7403', 'L', 'U', 't', 't', 'V', 'm', '9013', '7283', 'a']