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: ['K', '4403', 'a', '3881', '4139', 'w', '1861', 'G']

A: 14284
****
Q: ['4509', '4165', '8651', '8057', 'a', '2241', 't', 'i', 'q', 'S', '5149', 'J', 'j', '1373', 'W', 'X', '235', 'm', '3225']

A: 37605
****
Q: ['6233', '4765', 'r', '2059', '3557', '5165', 'w', '2077', '6251', 'E', '3549', '8011', 'n', '173', '389', '5627', 's', '5583', 'b', 'Q']

A:
53439
****