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]: ['3575', '8877', '3231', 'v', '9083', '317', 'M', '8975', 'x', 'F']
[A]: 34058


[Q]: ['g', '5301']
[A]: 5301


[Q]: ['3853', 'S', '1365']
[A]:
5218