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
['D', 'n', 'k', 'i', '8113', '4627', '3557', '2939', 'c', 'J', 'J', '721', '2511', 'l', 'S', 'v', 'r', '2749', 's', 'S', 'p']