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: ['9399', '8267', 'd', '3923', '5089', 'i', '4749', '3319', '3251', '8593', 'X', 'J']
Student:
8