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
['e', 'w', '9473', '7967', 'U', 'y', 'D', '4013', '1877', '8391', '3447', 'U', 'U', 'D', 'y', 'R', 'Z']