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: ['W', '3629', '6053', '1035', '1717', 'n', 'y', '9585', 'D', '5125', 's', '9801', '2905', 'E', '5797', 'T']

A: 45647
****
Q: ['4869', 'L']

A: 4869
****
Q: ['c', 'P', 'G', '9759', 'H', '1533', 'L']

A:
11292
****