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.
['m', 'Z', '2429', 'x', '7829', '4235', 'q', 'a', '6813', '5643', 'Z', '3649', 'M', 'N', '5559', 'T', 's', '2517', '2317', 'I', 'D']