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
['7413', '9647', '9837', '8529', 'm', '4909', 's', '6103', '1055', '3873', 'Y', 'U', 'l', '2003', 'z']