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
['a', 'H', 'T', '957', 'b', 't', '4697', 's', '1019', '6091', 'G', '2801', 'i', 'Z', 'n', 'M', 'z', '2435', '3153', 'f', 'r', 'z', 'n', 'W', '4147', 'U', '2227', '4033']