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
['H', '7363', 'v', '6895', '5439', 't', 'U', '4061', 'e', 'k', '5537', '1543', 'e', '3587', 's', '8827', '3121', 'z', 'K', 'a']