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
['3099', 'u', 'R', 'I', 'j', '437', 'J', 'b', 'E', 'j', 'I', '1773', 'z', 'o', 'n', 'X', 'Y', '2549', '6901', 'p', '4949', 'f', '635', '339']