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.
['a', '769', 's', 'k', '3535', 'R', '391', 'C', '3633', 'O', '2679', '419', 'b']