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
['Y', 'H', 'z', 'l', '6805', 'z', 'U', 'c', 'g', 'Z', '5003', '4129', '7833', '6335', '6777', '3831', '1173', '5393']