How to find Gun adder Codes

So i am trying gun adder.... Dont work any more they changed the value's so tell me how can i find some codes? like just trying of 1 buy no luck 2 buy no luck or is there a other way ty

lol, this has nothing to do with the thread, but nice name (I'm from holland too), and for the not-dutch speaking people, his name means F*ckMe