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', 'D', '4721', '5789', 'o', '8873', '1737', '8451', '3355', '6229', '5503', '4343', '4537', '6007', 'y', '6453', '417', 'D', 'J', 'L', '2093', 'b', '3369', 'F', 'F', 'E', 'B', 'U', '7411', 'c', 'x', 's', '3371', 'l', '3007', 'q', 'L', 't', 'j']