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.
['9049', '747', 'D', '2879', '2093', '151', 'B', 'o', 'U', '3461', 'x', 'k', '7405', '9715', '7835', 'U', '6351', 'i', '9459', '9521', 'B', 'O', 'z', '1779', '8357']