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: ['h', '9539', '3373']

A: 12912
****
Q: ['6551', 'm', '3941', 'F', 'K', 'u', '7981', '9581', 'X', 'M', 'N', 'e', 'G', 'i']

A: 28054
****
Q: ['E', 'U', 'p', 'p', '1419', 'C', 'u', '4225', 'u', 'c', 'y', '7009', '5883', '7135', '2563']

A:
28234
****