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]: ['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']
[A]: 14334


[Q]: ['6849', 'I', 'p', 's', 'L', '4757', 'j', 'x', 'm', 'P', '5237', '1105', '9015', '9279', 'Q']
[A]: 36242


[Q]: ['5569', '5587', 'B', '7077', 'X', 'N', 'F', '2157', '9191', 'L']
[A]:
29581