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: ['x', '5259', 'T', 'L', 'C', 'H', '2493', 'u', '3851', '2439', 'U']

Output: 14042


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

Output: 33565


Input: Consider Input: ['6231', '5239', '7415', '2529', '3617', 'T', 'W', '5313', 'M', '8225', 'b', 'l', '4003', '965', 'V', '595']


Output: 44132