import Control.Applicative
import Control.Monad
import Data.List
import Data.Char
strToInt s = (read :: String -> Int) s
strToInteger s = (read :: String -> Integer) s
strToDouble s = (read :: String -> Double) s

main :: IO ()
main = do
    -- 整数の入力
    a <- readLn :: Int
    let m = 10^9+7
    -- 出力
    putStrLn . show $ scanl1 (flip mod m . (*)) [1..a]
