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: ['1969', 'm', 'Y', 'N', '7331', 'J', 'b', '2485', 'x']

A: 11785
****
Q: ['901', 'X', 'W', 'D', 'm', 'M', '59', '4855', '6523', 'R', '9781', '8271', '4449', '2221', '8391']

A: 45451
****
Q: ['k', 't', 'b', '1137', '6085', 'u', '359', 'y', '671', '2757', '9245', 'y', '6195', '7941', '327', 'H', '5931', '2817']

A:
43465
****