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.
['L', '3725', '4193', '4069', 'M', '4557', 'a', '5427', 'C', '3155', 'e', 'P', 'M', '1103', '3557']