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
['S', '4399', '5557', 'q', '4629', '6347', 'M', '7225', '9459', '583', 'z', 'z', 'd', 'J', 'P', '1929', '3413', 'a']