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]: ['1965', '8127', 'x', '4981', '8077', 'O', '467', '701', 'V', 'm', 'y', '5989', '123', 't', '4019', 'j', '1827', '8799']
[EX A]: 45075

[EX Q]: ['9869', '7701', 'H', 'o', 'v', '1431', 'O', 'L']
[EX A]: 19001

[EX Q]: ['2135', '693', 'r', 'V', '2101', 'E', '4927', '921', '5771', 'G', '8415']
[EX A]:
24963