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]: ['4201', '6445', '4009', 'q']
[A]: 14655


[Q]: ['2625', '1611', 'E', '4507', '3013', '1569', 'M', '2607', '1111', 'W']
[A]: 17043


[Q]: ['9293', '8235', 'j', 'G', 'S', 'E', '2337', '3283', '3049']
[A]:
26197