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 alphabetical elements in the given list. Return 0 if no alphabetical element in the list
['W', 'N', '2873', '2775', 'T', 'r', '6597', 'n', '4135', 'w', 'c', '8369', '8413', 'U', 'W', 'r', 'c', '2721', 'N', 'z', '5777', '7277', 'U', '5539', '4369']