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
['4109', '1929', '3203', '407', '9183', '2397', 'W', '6243', 'N', 'z', '9723', '1361', '2607', '4949', '7641', '7493', 'n', '7607', '2957', 'e', '307']