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


[Q]: ['p', 'V', '673', '8483', 'S']
[A]: 9156


[Q]: ['9257', 'j', '3041', '677', '6847', '6991', '2525', 'c', '6943', 'F', 'F', 'a', 'Y', 'Q', '7223', 'C', 'X']
[A]:
43504