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? Solve this instance: ['7617', '2763', '7995', '5265', '5059', '3293', '9921', '4553', '3951', 'h', 'P', '4737', '8263', '2745', '3517', '4679', 'z', 'z', '4041', 'x', 'O', '9099', '4583', '4519', 'L', 'n']
Student:
18