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.
['R', '461', '299', '3881', '4219', 'g', 'M', 'L', '1561', 'S', '2335', '1913', '3783', 'N', 'b', '5119', '7639', '3967']