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', 'l', '9973', 'i', 'J', '457', 'D', '8559', 'K', 'P', 'm', 'J', '4849', '5153', 'u', 'b', 'i', 'm', '5703', 'W', 'E', 'a', 'Y', 'R', 'Z']