Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
['238', 'h', '92', 'U', '2799']
Solution: 3
Reason: Here, the numbers in the input list are '238', '92' and '2799', hence their count is 3.

Now, solve this instance: ['4567', '8011', '869', '5823', 'J', '1709', 'S', '3951', '441', 'f', '7333', 'Q', '9251', 'L', '8401', '6945', 'e', 'Z', 'r', 'M', 'A', '9293', 'C']
Student:
12