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]: ['e', '9777', '1835', 'N', '2425', '1427', 'o', '4459', '9961', '3285', '5199', 'x', 'e', '7727']
[A]: 46095


[Q]: ['8147', '3191']
[A]: 11338


[Q]: ['w', '9421', 'w', 'Y', 'M', 'm', 'G', 'X', 'w', 'F', 'I', 'B', 'Y']
[A]:
9421