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
['M', 'X', 'C', 'R', 'w', 'N', '6763', '7969', '4829', '1241', '2893', 'H', 's', '6141', '929', '3797', '705', '7709', 'n', '4875', '2613']