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
['8057', '2897', 'z', 'e', 'g', '2633', 'f', 'g', 'w', '1667', '4461', 'S', 'R', '9093', '6073', '1475', '6791', 'R', 'U', '857', '1313', 'u', 'Z', '1555']