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: ['4161', 'E']

A: 4161
****
Q: ['7277', 'c', '9587', '2613', '853', 'w', 'y', '4067', 'o', 'u', 'j', 'W', '1517', 'x', 'Y']

A: 25914
****
Q: ['b', 'F', '9743']

A:
9743
****