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.

['T', 'Z', 'Q', '4409', '5793', '925', 'k']
3

['i', '6035', '9753', '1597', 'E', '4673', 'S', '7327', 'c', 't', '7287', '553', '8047']
8

['4427', '3721', '6449', 'W', 'z', '7625', '639', '4165', 'V', 'p', '8455', 'f', 'I']

7