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.
['349', '4261', '8271', '3499', '1099', 'X', '9129', '4425', '4647', 'n', 'c', 'U', 'a', 'L', '1265', '5411', 'P']