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: ['M', '9933', '9861', 'f', 'N', 'R', '7625', 'p', 'T']

A: 27419
****
Q: ['7277', 'c', '9587', '2613', '853', 'w', 'y', '4067', 'o', 'u', 'j', 'W', '1517', 'x', 'Y']

A: 25914
****
Q: ['F', 'g', 'O', 'n', 'J', 'c', 'l', 'Q', 'V', '3659', 'D', '7209', 'x', 'X', 'n', '1315', '9155', 'l', 'o', 'x']

A:
21338
****