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.

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

A: 53452
****
Q: ['Q', '8317', '8989']

A: 17306
****
Q: ['8057', '1169', 'M', '7475', 'n', '8081', '3217', 'q', 'V', '7225', 'f', 'l', '6829', 'A', '1031', 'z', '1225', '9859', '8671']

A:
62839
****