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.

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

[EX Q]: ['3723', 'v', 'j', 'e', '2017', 'd', '4211', '2079']
[EX A]: 12030

[EX Q]: ['7539', '9201', '607', 'v', '4941', 'z']
[EX A]:
22288