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:
['o', 'L', 'E', 'V', 'D', 's', 'Z', 'm', 'a', '2785', 'I', 'v', 'B', '7909', '1599', 'V', 'N']

Ex Output:
12293


Ex Input:
['6565', 'T', 'O', '2901', '5121', 'y', '9617', 't', '7825']

Ex Output:
32029


Ex Input:
['a', '6765', 'M', 'N', 'o', '2059', 'j', 'g', 'y']

Ex Output:

8824