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: ['v', '3135', 'J', 'm', 'a']

Output: 3135


Input: Consider Input: ['f', 'F', 'E', '2279', 'r', '6419', 'd', 'M', '3975', '3797', '9201', 'F', 'c', '4753', '959', 'v', '8963', '4007']

Output: 44353


Input: Consider Input: ['6677', '103', '6187', 'B', '5249', '5991']


Output: 24207