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
['8513', '6569', '4875', 'r', '7855', 'W', '7637', '9639', 'D', '9063', 'O', 'S', 'D', 's', '8121', 'I', 'I', 'u', '7791', 'k', '7733', 'j', '3909', '8291', 't', 'R', 'd']