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.
['O', '7335', '1391', '821', 'i', '6741', '2799', '8083', '1755', 'O', 'U', '7211', 'L', 't', 'a', '9865', '1137', '3267', 'x', 'a', 'q', '9339', 'L', 'n', '1723', 's', 'W', 't', 's']