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]: ['3215', 'h', '9133', '2771', 'F', 'x', '9033', '709', 'q']
[A]: 24861


[Q]: ['D', 'G', '9895', '143', '37', 'S', '1539', 'x', 'a', 'x', 'B', 'i', '9719', '839']
[A]: 22172


[Q]: ['5353', '6705', '1455', '5329', 'e', '6741', '2567', 't', '1635']
[A]:
29785