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: ['6867', 'x', '8481', '5091', '979', 'a', 'S', 'i', 'd', '1591']

A: 23009
****
Q: ['4847', '675', '8491', 'T', 'b', '9935', '1529']

A:
25477
****