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: ['6255', '8457', 'V', 'z', '4405', 'X', '9267', '5329', 'I']

A: 33713
****
Q: ['S', 'D', '3101', '4967', '8197', '5025', '4257', 'S', 'X', '7641', 'n', '6775', '4719', 'o', '2821', 'x', '5605', '2181']

A: 55289
****
Q: ['t', 'V', '8093', '8109', 'K', '9193', 'p', 'c', '4539', '9879', '6047', '4411', 'Y', 'y', '1899', '6499', '4653', 'h', '4311']

A:
67633
****