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
['b', 'U', 'K', 'l', 'l', 'P', '715', 'K', '9699', '8895', '5357', '9337', 'm', '9257', 'u', '6417', 'T', '4291']