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.
['A', '5657', 'p', '1675', '2235', '5749', '8129', 'I', 'o', '9289', 'U', '2457', '8261', 'E', 'n', 'S', 'o', 'i', '4243']