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: ['6469', '3027', 'Z', '3353', 'a', 'S', '3879', '8471', 'H', 'I', 'y', '2661', '9007', 'D']

A: 36867
****
Q: ['6907', '9123', 'L', '8871', 'q', 'C', 'U', '7403', 'F', '3827', '3951', '8879', '2865', 'x', '6175', 'T', '1147']

A: 59148
****
Q: ['8077', 'f', 'N', 'P', 'O', 'C', 'B', 'D', '9247', 's', '6741', 'v', 'd']

A:
24065
****