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: ['g', 'A', 'm', '4005', '8079', 'G']

A: 12084
****
Q: ['5829', '9755', '67', 'F', '6347', 'p', 'i', 'X', 'z', 'o', '2321', 'F', '6145', 'B', '3903']

A: 34367
****
Q: ['k', 'K', 'm', 'I', 'g', 'l', 'r', 'G', '8501', 'y', '7587', '1797', '6939', '7581', 'X', 'x', 'j', '3671']

A:
36076
****