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 Input:
['95', '279', 'y', 'p', '5083', 'X', 'E', '3817']

Ex Output:
9274


Ex Input:
['6787', 'W', 'I', '4929', 'j', 'I', '3487', 'F', '3927', 'Q', 's', 'X', '9939', 'n']

Ex Output:
29069


Ex Input:
['9393', '4105', '6927', 'I', 'U', 'r', '3613', 'U', 'T']

Ex Output:

24038