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.

[Q]: ['4509', '4165', '8651', '8057', 'a', '2241', 't', 'i', 'q', 'S', '5149', 'J', 'j', '1373', 'W', 'X', '235', 'm', '3225']
[A]: 37605


[Q]: ['6957', '4603', '5299', '8451', '9803', 'b']
[A]: 35113


[Q]: ['829', '3245', '2323', '9785', 'F', '8813', 'e', '9397', 'D', 's']
[A]:
34392