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: ['9069', '8333', 'H', '2049', '8051', 'L', '2749', '8819', '2883', '9317', 'M', '6515']

A: 57785
****
Q: ['D', 'P', 'y', '4891', '1539', 'J', '5737']

A: 12167
****
Q: ['r', 'G', '3867', 'S', '4393', '4005', '4619', 'n', '3419', '859', '9571', '9039', 'I', 'e', '9607']

A:
49379
****