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: ['D', '7807', '9395', 'T', 'c', '5139', '2827', 't', 'T', 'm', '3717', 'U', '3225', '7419', '2481', 'p', 'C', '5277']

Output: 47287


Input: Consider Input: ['x', '1887', 'E', '3995', '5677', '2749', '9951']

Output: 24259


Input: Consider Input: ['w', 'l', '6567', '727', '9491', '3921', '3599', 'm', '4547', '1355', 'q', 'W', '4153', '7873', '2005', '2543']


Output: 46781