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.
['6871', 'e', 'J', 'W', '563', 'b', 'L', '6503', '5671', 'e', 'y', 'I', '4295', '1039', 'c', 'p', '473', '4229', 'W', 'A', '5517', 'n', 'X', 'v', 'a', '5483', 'P', '3313', '1409', 'K', '2849', '7891']