In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.

Input: Consider Input: ['6255', '8457', 'V', 'z', '4405', 'X', '9267', '5329', 'I']

Output: 33713

Input: Consider Input: ['1165', '8341', '9685', '6749', '8571', 'p', '9355', '5319', '9587', 'B', '9581', '1719', 'Q', '577', '8883', 'S', '7851', '1069', 'i', 'y']

Output: 88452

Input: Consider Input: ['461', 'y', 'y', 'X', 'l', '9689']
Output: 10150