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: ['6941', 'I', 'j', '6135', '6525', '7853', '5607']

A: 33061
****
Q: ['9069', '8333', 'H', '2049', '8051', 'L', '2749', '8819', '2883', '9317', 'M', '6515']

A: 57785
****
Q: ['7685', 'g', 'o', '2677', '3915', 'K', '2661', '43', 'K', 'k', '5393', '629', '7133', '2353', '2063']

A:
34552
****