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]: ['G', 'o', 'g', 'I', 'S', '9193', 'G', 'C', '2481', '435', 'm', '1005', '5605', '6501', 'D']
[A]: 25220


[Q]: ['3051', '5343', 'k', 'k', '6815', 'E', '4745', 'A', 'A', '1251', '6649', 'f', '4133', 'X']
[A]: 31987


[Q]: ['5007', '4821', 'b', 's', '2403', '4779', '3929', '6825']
[A]:
27764