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: ['1693', '9237', '7591', '1593', 'R', '6295', '9379']

A: 35788
****
Q: ['z', '3199', 'r', '849', 'C', 'v', '1931', 'M', 'Q', '4531', '579', 'x', '8997', '4663']

A: 24749
****
Q: ['6387', '3671', 'T', '4435', '315', '7955', 'F', '2009', 'K', 'B', '1023', 'h', 'D', 'G', '4753', '7889', '4087', 'd', 'B']

A:
42524
****