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.
['p', '5431', '8365', 'q', '3979', 'O', 'S', 'r', 'H', 'H', '4695', '615', 'l', 'u', '1021', '4709', '8921', '2835', 'X', '7277', '8019']