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: ['5899', '229', 'm', '3347', 'k', 'q', 'g', '2755', '8727', '2035', '823', '6835', '9271', 'Q']

A: 39921
****
Q: ['h', '6937', 'U', 'f', 'S', 'm', '9699', 'E', '4559', 'p', 'Z', 'o', '6409', 's', '4537', '5135', '6901', '6489', '5833', 'l']

A: 56499
****
Q: ['G', 'l', 'x', '9991', 'k', '8577', '8239', '8117', '2671', 'I', 'J', '5901', 'O', '7785', '5913', 'B']

A:
57194
****