Detailed Instructions: 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.
Q: ['S', 'L', 'H', '707', '3397', 's', 'h', 'Y', '1477', 'y', 'g', '8939', '6585', 'Z', '321', '6461', '1057', '6551', '5405', '7883', 'H', 'D', '455']
A:
12