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.
['2379', 'p', 'k', '9321', '4839', '7879', '1783', 'M', 'r', '9215', '7575', '8291', 'f', 'a', '8731', 'u', '6395']