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.
['6657', 'P', 'n', 'u', 'O', '721', 'M', 'C', 'S', '8099', 't', '1735', '7137', '6967', '6891', 'r', '9697', 'i', '3303', '2095', 'i', 'T', 'R', 'k', '9257', 'F']