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: ['t', 'v', 'B', 'Y']

A: 0
****
Q: ['v', '3135', 'J', 'm', 'a']

A: 3135
****
Q: ['1845', '273', '6921', 'u', '165', 'n', 'y', 'I', 'u', 'X', '5503', 'L', 'G', 'V', '6223', '1123', 'v']

A:
22053
****