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: ['x', '9895', 'r', 'H', 'C']

A: 9895
****
Q: ['9869', '7701', 'H', 'o', 'v', '1431', 'O', 'L']

A: 19001
****
Q: ['9341', '6649', 'q', 'R', 'r', '6003', 'J', 'P', 'G', '7903', '1007', '4231', 'D', 'm', 'A', '5577', 'f', '6461', 'n']

A:
47172
****