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
['I', 'L', '4791', 'm', '8473', 'u', 'n', '7211', 't', '9477', '1017', 'b', '9109', 'j', '447', '6117', 't']