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: ['A', '6323', 'T', 'H', 'M', 'S', 'D', 'r', 'v', '8169', '7649', '5149', 'x', '6275']

Output: 33565


Input: Consider Input: ['7087', 'P', 'i', 'e', '4875', 'e', 'F']

Output: 11962


Input: Consider Input: ['y', 'Z', '3267', '3715', '149', 'a', '8963', 'Q', '3323', 'P', '6849', '2495', '2781', 'h', 'u', '1589', '9877', 'd']


Output: 43008