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: ['W', '3629', '6053', '1035', '1717', 'n', 'y', '9585', 'D', '5125', 's', '9801', '2905', 'E', '5797', 'T']

Output: 45647


Input: Consider Input: ['7379', 'I', '2031', '8419', 'w', 'b', '9827', 'X', 'Y', 't', '3789', 'B', 'c', '6599', 'F', '6169', 'V']

Output: 44213


Input: Consider Input: ['5221', 'g', '9511', '1669', 'w', 'W', 'Q', 't', '8945', '467', 'u', '2715', 'E']


Output: 28528