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]: ['211', '7561', '8725', '6139', 'I', '6585', '4231', 't', '2983', 'T', 'S', '9569', 'R', 'b', 'N', 'X', '9009']
[A]: 55013


[Q]: ['6121', 'S', '8683', 'Y', '6107', 'B', '6193', '5555', '365', '945', '1439', '7257', 'g']
[A]: 42665


[Q]: ['3511', '1787', '9817', '4747', '5029', 'X', 'U', '1555', 'o', '6415', 'H', '8253']
[A]:
41114