TASK DEFINITION: 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.
PROBLEM: ['989', '9937', '7857']

SOLUTION: 3

PROBLEM: ['6925', '4701', 'H', 'n', '2175', 'w', '7935', 'o']

SOLUTION: 4

PROBLEM: ['s', '5187', '453', 'k', 's', '5601', '2087', '795', '8701', '8253', '5489', 'd', 'v', 'd', '5959', '3545', 'u', 'p', 'z', 'C', 'w', 'r', 'E', '7617', '2509', 'U', '4375']

SOLUTION:
13