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:
['C', '3133', '2183', '5793', '9305', 'd', 'g', '6501']

Ex Output:
26915


Ex Input:
['2895', '8095', 'y', '1927', '4827']

Ex Output:
17744


Ex Input:
['8879', 'Y', '6143', 'm', '463', 'G', '6891', 'v', '581', 's', 'n', 'F', 'z', 'D', 'S', '1489', '289']

Ex Output:

24735