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:
['n', 'm', 'Y', 'v']
answer:
0


question:
['5467', '3013', '8325', '4005', 'J', 'V', '395', '7477', 'E', 's', '1337', 'g', 'v', '8569', '9757', 'x', '3909', '2983', 's', '7917']
answer:
63154


question:
['Q', 'P', 'Y', 'G', 'b', '2293', 'j', '763', 'U', '841', 'y', '8607', '7261', '6451', 'm', '8027', 'G', 'Z']
answer:

34243