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', 'M', 'n', 'Z', 'W', '6459', 'A', 'G', 'e', 'f', 'k', '9367', '4557', '1521']