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 numerical elements in the given list. Return 0 if no numerical element in the list.
['3215', '5303', '7423', 'z', 'z', 'z', '211', 'J', 'k', '1567', '1281', '8761', '3055', 'H', 'D', '6903', 'W', 'P', '4497', 'Z', 'M', '177', 'i', 'F', 'B', '8859', 'B', '4047', '8711', '3717']