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
['Z', '3133', 'u', 'Z', '7221', 'm', '3593', 'F', 't', 'z', '5839', '9417', '7509', 'P', 'n', 'L', 'K', '1569']