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]: ['1203', '6179', '9835']
[A]: 17217


[Q]: ['2683', '4431']
[A]: 7114


[Q]: ['x', '413', '6953', '9953', 'j', 'B', 'Q', '7065', 'B', '6409', 'G', 'C', 's', 'i', '1593', 'O', 'h', '9631']
[A]:
42017