import Control.Monad (guard)
import Text.Printf (printf)

main :: IO ()
main = mapM_ (\(a, b, c) -> printf "%d %d %d\n" a b c) . solve =<< readLn

solve :: Int -> [(Int, Int, Int)]
solve n = do
    a <- [1 .. n]; b <- [1 .. n]
    guard $ a <= b && b <= n - a - b
    return (a, b, n - a - b)