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
['6677', 'z', '2259', 'P', '1501', 'y', '2827', 'S', 'Z', 'x', 'U', '6137', 'w', 'U', '4949', '1499', '209', '1703', 'A', '3607']