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.
['N', '3255', 'M', '2853', 'b', 'D', 'i', 'z', 'p', 'k', '4739', 'a', '7213', '7011', 'w', 'M', '1431']