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
['W', 'M', 'v', 'C', '7977', '3859', 'y', '4551', '3957', 's', 'u', '3747', 'n', 'm', 'z']