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 alphabetical elements in the given list. Return 0 if no alphabetical element in the list

Let me give you an example: ['238', 'h', '92', 'U', '2799']
The answer to this example can be: 2
Here is why: Here, the alphabetical elements in the input list are 'h' and 'U', hence their count is 2.

OK. solve this:
['3915', '935', '5091', 'm', '1295', 'I', 'j', 'r', '4255', '1741', 'W', '5237', 'K', '1893', 'w', 'x', 'R', '8023', '9173', 'O', 'A', 'D', 'f']
Answer:
13