combi :: Integral a => a -> a -> a
combi n m = product [n, n - 1 .. n - m + 1] `div` product [1 .. m]

judge :: Integer -> Integer -> Integer -> String
judge d x t
    | (<= t) $ flip combi x $ x + d - 1 = "AC"
    | otherwise                         = "ZETUBOU"

main :: IO ()
main = do
    _ <- getLine
    putStr . unlines .
        map (\(d : x : t : _) -> judge d x t) .
            map (map read) . map words . lines =<< getContents