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.
['7721', 'U', 'I', 'f', '3073', '7075', '4529', 'o', 'k', 'S', 'p', '5651', '7879', 'k', '7333', 'J', 'H', 'i', 'Z', 't', 'C', '3257', 'K', '1775', 'i', 'S', 'b', 'd', 'F', '5961', '1403', '463', 'a', '8821', 'x', 'V', 'S']