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]: ['29', 'N', '5061', '7191', 'z', '8367']
[A]: 20648


[Q]: ['1845', '273', '6921', 'u', '165', 'n', 'y', 'I', 'u', 'X', '5503', 'L', 'G', 'V', '6223', '1123', 'v']
[A]: 22053


[Q]: ['7693', '787', 'i', '5937', 'B', 'v', 'q', 'w', 'V', '8307', '3423', '6545', 'f', '8499']
[A]:
41191