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.

['989', '9937', '7857']
3

['8489', '5129', '3055']
3

['r', 'a', 't', 'x', 'j', '6439']

1

