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', 'u', 'R', 'e', 't', '7613', 'z', '2493', '1855', '1865', 'Y', 'l', 'W', '7013', '803', 'y', 'd', '493', '1603']