{-# LANGUAGE OverloadedStrings #-} module Main where import Data.Maybe import qualified Data.ByteString.Char8 as C import Control.Monad(forM_) import Data.Int import Data.List import Data.Array import Data.Word import Data.Bits import qualified Data.IntMap as IntMap import qualified Data.Map as Map import Data.Functor yes :: C.ByteString yes = "YES" no :: C.ByteString no = "NO" getInts :: IO [Int] getInts = do ss <- C.getLine return $ map (fst . fromJust . C.readInt) $ C.words ss getIntss :: Int -> IO [[Int]] getIntss 0 = return [] getIntss n = do xs <- getInts xss <- getIntss (n - 1) return $ xs : xss -- end standard template -- main :: IO () main = do [m] <- getInts let res = solve m print res solve :: Int -> Int solve m = mod (t + 2017) m where t = foldr1 (\x -> \y -> x * y `mod` m) $ replicate 2017 (2017*2017)