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: ['o', '7099', 'G', 'v', 'H', 'J', 'k', '1607', 'i', '9765', '2489', '8031']

A: 28991
****
Q: ['4389', '8535', 'D', '6063', 'z', 'r', 'w', '5725', '291', 'a', '9059', '569', '2943', 'W']

A: 37574
****
Q: ['4535', 'J', '4683', 'P', '6059', 'M', 'A', '4031', 'b', 'y', 'O', 'J', 'm', '4391', '5221', '7245', '5939']

A:
42104
****