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:
['2237', '2597', '2593', 'Y', '5345', 'g', 'l', 'I', 'p', 'u', 'L', 'T', '617', '9759', 'b', 'w', '7097', '9863']
answer:
40108


question:
['6001', '6423', '5591', '8721', 't', 'x', '3723', 'E', 'F', '7353', 'b']
answer:
37812


question:
['7413', 'u', 'H', '8815', 'z', '1807', 's', 'j', 'U', 'y', '7155', 'F', '5821', 'Z']
answer:

31011