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]: ['2485', 'Q', 'G', '5533', 'Y', '21', 'D', 'S']
[A]: 8039


[Q]: ['5031', 'g', 'x', 'U', 'h', '9533', '2771']
[A]:
17335