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: ['1073', 'i', 'o', 'j', 'O', 'g', 'X', '3261', '5105', '4831', 'J']

A: 14270
****
Q: ['7277', 'c', '9587', '2613', '853', 'w', 'y', '4067', 'o', 'u', 'j', 'W', '1517', 'x', 'Y']

A: 25914
****
Q: ['J', '5145', '8757', 'Q', 't', '3989', 'a', 'M', 's', '2189', 'r', 'V', 'U', 'w', 'v', 'r', 'K']

A:
20080
****