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: ['q', '867', 'e', 'z']

A: 867
****
Q: ['x', '9895', 'r', 'H', 'C']

A: 9895
****
Q: ['C', 'i', 'j', '2599', 'v', '1777', '1975', 'v', '9509', '6241', 'R']

A:
22101
****