instruction:
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.
question:
['w', '8035', 'J', '2671', '7509', '1573', '6915', '8569', '345', 'T', 'P', 's', '1341', '7823', '8671', 'm', 'Q', 's', 'N']
answer:
53452


question:
['8809', '4559', '2715', 'w', '9903', 'h', 'u', 'F', '9369', '6149']
answer:
41504


question:
['G', 'z', 'W', 'J', 'H', '6227', '209', '3847', 'Q', 'D', '3027', '2495', 'a', 'U', 'X']
answer:

15805