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', 'J', 'B', '7765', '7781', '5513', '8721', 'u', '9557', 'C', 'A', '1281', '6565', 'H', '5559', '1695', '7577']

A: 62014
****
Q: ['6001', '6423', '5591', '8721', 't', 'x', '3723', 'E', 'F', '7353', 'b']

A: 37812
****
Q: ['g', 't', 'J', '4029', 'U', '5493', 'p', 'G', '2977', 't', '7785', '8581', '7937', '7727', 'O', 'h', 'f', '8913']

A:
53442
****