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]: ['3705', '9217', 'C', '4609']
[A]: 17531


[Q]: ['6011', 'G', '9043', '8009', 'e', '9493', 'G', '7969', 'M', 'n', 'p', 'g', '7925', 'H', '3213', '8095', '97', 'F']
[A]: 59855


[Q]: ['87', '9259', 'g', 'z', 'X', 'c', 'l', 'M', 'x', 'T', '2113', '7357', 'e', 'Z', '2467', 't', '7185', 'p', '1003', '4373']
[A]:
33844