{-# LANGUAGE BangPatterns #-}

import           Control.Monad                     (when)
import qualified Data.Vector.Fusion.Stream.Monadic as VFSM
import qualified Data.Vector.Unboxed.Mutable       as VUM

main :: IO ()
main = do
  n  <- readLn :: IO Int
  dp <- VUM.unsafeNew 5454
  VUM.unsafeWrite dp 0 (1 :: Int)
  rep 7 $ \i -> rep (6 * n) $ \j -> rep' n j $ \k -> when (j >= k) $ do
    dpijk <- VUM.unsafeRead dp (i * 606 + j - k)
    VUM.unsafeModify dp (+ dpijk) ((i + 1) * 606 + j)
  print =<< VUM.unsafeRead dp (4848 + 6 * n)

stream :: Monad m => Int -> Int -> VFSM.Stream m Int
stream !l !r = VFSM.Stream step l
  where
    step x
      | x <= r    = return $ VFSM.Yield x (x + 1)
      | otherwise = return $ VFSM.Done
    {-# INLINE [0] step #-}
{-# INLINE [1] stream #-}

rep :: Monad m => Int -> (Int -> m ()) -> m ()
rep n = flip VFSM.mapM_ (stream 0 n)

stream' :: Monad m => Int -> Int -> Int -> VFSM.Stream m Int
stream' !l !r !j = VFSM.Stream step l
  where
    step x
      | x <= j && x <= r = return $ VFSM.Yield x (x + 1)
      | otherwise        = return $ VFSM.Done
    {-# INLINE [0] step #-}
{-# INLINE [1] stream' #-}

rep' :: Monad m => Int -> Int -> (Int -> m ()) -> m ()
rep' j n = flip VFSM.mapM_ (stream' 0 n j)