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:
['8755', 'A', '2893', '6703']
answer:
18351


question:
['j', 'd', 'T', 'S', '8159', '5563', '5551']
answer:

19273