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.
['7479', '5537', 'P', '417', 'a', 'U', '1885', '3279', 'C', 'R', 'm', '8737', 'I', '5621', '833', 'K', '2281', '1677', '6871', '4895', '2709', '9607', '2523', 'R', 'r', 'k', '4337', '8579', '6857', '6539', 'L']