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]: ['1969', 'm', 'Y', 'N', '7331', 'J', 'b', '2485', 'x']
[A]: 11785


[Q]: ['w', '1335', 'G', 'h', '6729', '1999', 'u', 'I', 'r', 'm', '4757', 'W', '3715', '701', '1999']
[A]: 21235


[Q]: ['g', 'o', 'm', 's', '9027', 'z', 'U', '6545', '871', '9483', 'Q', 'J', '7765', '69']
[A]:
33760