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]: ['q', 'U', 'I', '5245', 'g', 'Y', 's', 'V', 'b', 'V', 'D', '1193', 'p']
[A]: 6438


[Q]: ['1165', '8341', '9685', '6749', '8571', 'p', '9355', '5319', '9587', 'B', '9581', '1719', 'Q', '577', '8883', 'S', '7851', '1069', 'i', 'y']
[A]: 88452


[Q]: ['9963', 't', '8323', 'Z', 'j', 'Z', 'k', 'C', 'Q', 'W', 'j', 'D', '7361', 'k', 'V', 'j', '4043', 'C', 'h']
[A]:
29690