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

[EX Q]: ['61', '5695', 'u', '253', 'n', '1035', 'd', '3017']
[EX A]: 10061

[EX Q]: ['1001', 'T', 'w', 'f', 'Q', '4035', 'b', 'q', 'x', 'R']
[EX A]:
5036