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: ['D', '8591', 'b', 'n', 'e', '883', '8923', '245', 'z', '5643', 'C', '2911', '9275', '711', '7299', '3449', '4799', '6065']

A: 58794
****
Q: ['u', 'i', 'z', 't', '9617', 'd', '3255', 'w', 'S', '3041', '7451']

A: 23364
****
Q: ['J', 'p', '245', '3515', 'c', 'y', '1253', '3059', 'E', '5265', '6695', '837', 's', '6405', '9471', 'N', '9259']

A:
46004
****