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.
['2681', '6105', 't', 'u', 'y', 's', '9799', 'B', 'H', '4507', 'S', 'f', 'V', '3249', 'm', '7899', 'm', 'K', 'T', '639']