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
['7893', '2255', '4891', 'M', 'n', 'c', 'e', 'w', '1449', 'K', 'O', '5923', '5791', 'l', '6541', '1747', 'Y', 'Z', '9629', 't', '7367', 'u', '7547', '9133', 'k', '1959', 'v', '3209', '7693', 'l', '3677', 'z', 'P']