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', '1305', 'b', '8193']

A: 9498
****
Q: ['2485', 'Q', 'G', '5533', 'Y', '21', 'D', 'S']

A: 8039
****
Q: ['9319', '2505', '511', '4895', '8909', '6589', '5447', 'V', '2439', '523', 'A']

A:
41137
****