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.
['M', 'P', 'V', '3921', '3573', 't', 'a', 'k', '7587', '1307', '4813', '9017', 'b', '7053', 'a', '5153', 'b', '4903', 'r', 'M', 'w', 'S', '363', '8307', '2123', 'u']