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.

[EX Q]: ['6565', 'T', 'O', '2901', '5121', 'y', '9617', 't', '7825']
[EX A]: 32029

[EX Q]: ['597', 'i', 'd', '3201', 'u', '1111', '8563', 'c', 'E', '5983', '6293']
[EX A]: 25748

[EX Q]: ['P', '9737', '2689', 'w', 'B', '7843', 'd', '3883', '7675', 'b', 'X', '2449', '9369', 'q', '3293', '953']
[EX A]:
47891