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.
['u', '4935', 'w', 'e', 'g', 'R', 'R', 'a', '4213', 'K', 'R', 'r', '6121', 'x', '3349', 'o', 'f', 'k', '7005', 'K', '2503', 'T', '9015', 's', 'P', 'X', 'B', 'N', 'U', '3893', '147', '4265', 'Z']