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: ['6585', '5263', '9497', '1117', 'a', 'F', 'w', '6595', '547']

A: 29604
****
Q: ['9401', 'w', 'b', '8287', 'n', 'O', 'H', 'h', '45', '2337']

A: 20070
****
Q: ['l', '2499', '9297', '1315', 'M', 'q', 'i', 'i', '4331', '2551', '5133', 'b', 'a', '8807', 't', 'H', 'q', '5149']

A:
39082
****