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.
One example: ['238', 'h', '92', 'U', '2799']
Solution is here: 3
Explanation: Here, the numbers in the input list are '238', '92' and '2799', hence their count is 3.

Now, solve this: ['249', '1049', '1155', 'T', '4399', 'b', 'u', '833', 'I', '1421', 'w', '9037', '2355', '5397', '4335', 'X', '341', '709']
Solution:
12