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]: ['2683', '4431']
[A]: 7114


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


[Q]: ['T', 'E', '6127', '4061', '9029', 'D', '3359', '8083', 'k', 'b']
[A]:
30659